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BACKGROUND: Due to the unstable drug release rate of uniaxial bone scaffolds, multi-structure composite printing methods have been sought in and outside China in recent years. Currently, coaxial drug-loaded bone scaffolds, which combine drug-loaded sustained release system with bone transplantation and repair technology, not only replace the defective bone after implantation, but also release drugs slowly, providing a microenvironment conducive to bone formation at the implant site. OBJECTIVE: To explore and assess the in vitro antibacterial properties of uniaxial and coaxial minocycline hydrochloride bone scaffolds. METHODS: Rapid prototyping technology was used to prepare uniaxial hydroxyapatite/silk fibroin-polyvinyl alcohol scaffold, uniaxial hydroxyapatite/silk fibroin-polyvinyl alcohol scaffold, coaxial hydroxyapatite/silk fibroin-polyvinyl alcohol scaffold, and coaxial hydroxyapatite/silk fibroin-polyvinyl alcohol scaffold, respectively, which were named S1, S2, T1 and T2. The morphology, porosity, degradation performance, in vitro sustained-release performance and cytotoxicity of scaffolds were characterized. Four kinds of bone scaffolds were immersed in PBS to prepare the extracts at different time points (1, 3, 5, 7, 14, 21, and 28 days). The qualitative filter paper was placed into the extract for 24 hours. The filter paper was co-cultured with Porphyromonas gingivalis and Fusobacterium nucleatum for 72 hours. The bacteriostatic effect of four groups of scaffolds was detected by the agar diffusion method. RESULTS AND CONCLUSION: (1) Scaffold characterization: Four groups of scaffolds were well formed. The surface of micro-wires in the S1 and S2 groups was dense and smooth, and the surface of micro-wires in the T1 and T2 groups was rough. Porosity was between 40%-47% and met the requirements of bone scaffolds. Compared with the S2 group, sustained release time was longer in the T2 group. The sustained release concentration of the drug was between 1- 10 μg/mL for a long time, which was more conducive to bacteriostasis and osteogenesis. After 10 weeks of immersion in PBS in vitro, the degradation rate of the coaxial printed bone scaffold was faster than that of the corresponding uniaxial printed bone scaffold, and the degradation rate of the coaxial loaded bone scaffold was lower than that of the coaxial non-loaded bone scaffold. The four groups of scaffold extracts were co-cultured with osteoblasts respectively. CCK-8 assay displayed that the cell proliferation rate was greater than 75%, which met the requirements of biocompatibility. (2) In vitro antibacterial effect: S1 and T1 did not have antibacterial activity. S2 and T2 had an obvious antibacterial effect. Under the extraction solution on day 28, the diameter of Porphyromonas gingivalis and Fusobacterium nucleatum inhibition zone in the S2 group was smaller than that in the T2 group (P < 0.05). (3) These findings exhibit that hydroxyapatite/silk fibroin-polyvinyl alcohol scaffolds with coaxial minocycline have good physical properties and bacteriostatic properties. [ABSTRACT FROM AUTHOR]

Objective: To analyze the bibliometric indicators of SCI papers in the field of pharmacy in China from 2010 to 2019 by Essential Science Indicators (ESI) and InCites databases, so as to know the status quo and development trend of pharmacy in China in the last decade. Methods: In search of papers from ESI and InCites databases, the publication time of papers for retrieval was set within the time span of 2010-2019, the research output location was "mainland China" and the research area was "pharmacology and pharmacy". Then，related SCI papers in the field of pharmacy contributed by researchers in mainland China from 2010 to 2019 were retrieved. Such vital data as publication years, specific journals, location of research institutions, international collaboration and funding for researches were analyzed statistically, and those papers with high influential impact were further retrieved and analyzed. Results: In the field of domestic pharmacy，a total of 81 679 SCI papers were published, including 13 720 international collaborative papers and 470 papers with high influential impact. The amount of SCI papers，the number of international collaborative papers and papers with high influential impact increased year by year. China had international collaboration with 129 countries or regions in the field of pharmacy，and 48 .49% of the papers were sponsored by domestic research funds. Conclusion: In recent 10 years, the scope of research in pharmacy at home has expanded gradually, academic influential impact has arisen steadily, and the number of international collaborative papers and papers with high influential impact has also increased quite noticeably. However, the quality of scientific papers as well as international collaboration demand further improvement. [ABSTRACT FROM AUTHOR]

Based on the monthly data of 132 fattening feed prices for mutton sheep from January 2012 to December 2022, this paper selects soybean meal price, wheat bran price, mutton price, and natural disaster risk index as explanatory variables to analyze the influencing factors of fattening feed price fluctuation for mutton sheep in China. The results showed that the price of soybean meal had a significant impact on fattening feed of mutton sheep through an internal transmission mechanism. Natural disasters had obvious influence on the fluctuation of fattening feed price of mutton sheep through external impact mechanism. The fattening feed price of early mutton sheep had a significant impact on the fattening feed price of late mutton sheep. The study indicates that the conclusion of this paper can provide a reference for maintaining the long-term stability of fattening feed price of mutton sheep. [ABSTRACT FROM AUTHOR]

BACKGROUND: Exosomes have become one of the frontiers of biomedical research in recent years because of their promising applications in clinical diagnosis and therapy. OBJECTIVE: To reveal the basic research and technology development trend of exosomes at home and abroad, and provide suggestions for related scientific and technological research and development in China. METHODS: This paper presented a quantitative analysis of the overall research and development situation, the frontier hotspots and future development trends in this research area by means of bibliometric methods and tools. RESULTS AND CONCLUSION: The research and development hotspots in this area have entered a high growth phase with the application of new tools and methods. Many new technologies and products are facing clinical applications and markets with the development of a large number of clinical translation experiments. Comparative analysis at home and abroad reveals that China has made more remarkable achievements in basic research in this field, but there are still weaknesses in the possession of independent intellectual property rights, clinical technology translation, and regulatory system standardization and management, which need to be further strengthened in the future. [ABSTRACT FROM AUTHOR]

Droughts are increasing in frequency and intensity as the global climate changes. Risk assessment for agricultural drought disasters is an important approach for disaster prevention and mitigation. Based on the formation mechanism of natural disaster risk, the index system model of agricultural drought risk assessment in North China was constructed, and the robustness of the established risk assessment model was tested by using the internal test method. Then based on the characteristics of agricultural drought risk formation in North China, the paper proposes corresponding risk prevention recommendations. The conclusions were as follows: when adjusting the indices and methods in the risk assessment model, the range of changes in the agricultural drought risk ranking for each city was mostly 1-2.5 places, and the model was relatively robust. With the exception of Beijing and Tianjin, which had the highest disaster prevention and mitigation capacity, central and northern China had the highest agricultural drought risk, which was previously linked to the high risk and vulnerability of these regions. The agricultural drought risk in northern Henan and southern Shandong is low, mainly due to the low risk. The 34 cities in North China can be divided into 6 agricultural drought risk clusters, which are not dispersed in space and cross-city distribution, and have good aggregation. Cluster 4, located in the northernmost mountainous areas, has the highest risk of drought, which is associated with high environmental vulnerability and low capacity for disaster prevention and mitigation, so agricultural areas should be reduced and agricultural input should be increased. Clusters 2, 5 and 6, located in the central and southern regions, have higher grain acreage and yields due to drought, so agricultural drought risk can be further reduced by increasing agricultural input and improving irrigation guarantee rate. [ABSTRACT FROM AUTHOR]

In order to ensure the reasonable and stable price of beef and promote the sustainable and healthy development of the beef market, based on the monthly data of Chinese livestock industry from December 2011 to December 2022, the paper selects corn price, producer expectation, calf price, and national policy to build a VAR model from the perspective of internal transmission and external impact, and empirically tests the influencing factors and degree of beef price fluctuation in China. The results show that corn prices, producer expectations, calf prices, and national policies can affect beef prices. Among them, the corn price has a significant impact on the fluctuation of beef price through the internal transmission mechanism, and the stable contribution rate is about 8%. National policy has a significant impact on the fluctuation of beef prices in China through the external impact mechanism,with a contribution rate of 15%. The price of beef in the early stage significantly affects the market price of beef in the later stage. Therefore, some suggestions were put forward to reduce the feed cost of the beef cattle industry, strengthen the financial support of the beef cattle industry, and improve the market supervision system of beef price fluctuation, in order to provide a reference for stabilizing the beef price and promoting the sustainable development of the livestock industry. [ABSTRACT FROM AUTHOR]

Based on the panel data of 31 provinces in China from 2008 to 2022, this paper uses geographical concentration degree and spatial Gini coefficient to explore the spatial agglomeration characteristics of Chinese livestock modernization development, and uses a spatial econometric model to analyze the influencing factors of Chinese livestock modernization development. The results show that the modernization development of animal husbandry in China from 2008 to 2022 has a strong spatial agglomeration effect, which is manifested as the stage characteristics of 'decentralization- agglomeration-decentralization'. The Moran's index of Chinese animal husbandry modernization from 2008 to 2022 is significantly positive, indicating that Chinese animal husbandry modernization has an obvious spatial positive correlation. The number of animal husbandry employees, mechanization level, and per capita consumption of meat, egg and milk have significant positive effects on the modernization of animal husbandry in China. The water consumption of animal husbandry, urbanization rate, and density of transportation network have no significant influence on the modernization of animal husbandry. The spatial effect decomposition results showed that the number of livestock practitioners, mechanization level and per capita consumption of meat, egg, and milk also have significant positive effects on the modernization of Chinese livestock industry in neighboring areas. [ABSTRACT FROM AUTHOR]

With the gradual expansion of aquaculture industry in China, the frequent occurrence of diseases in aquatic animal aquaculture and the pollution of aquatic water are becoming more and more serious. The long-term use of antibiotics and traditional vaccines in aquaculture has caused water pollution, drug-resistant strains, antibiotic residues, and other problems, which restricts the healthy development of aquaculture industry. Plant polysaccharides play an important role in replacing antibiotics. Plant polysaccharides exist in the leaves, flowers, roots, stems, and fruits of plants. They are macromolecular polymers that connect various monosaccharides by glycosidic bonds. Plant polysaccharides have the advantages of safety, high efficiency, low residue and no drug resistance. Plant polysaccharides have many biological functions, such as regulating immunity, anti-oxidation, lowering blood sugar, anti-tumor, and improving intestinal health. The application of plant polysaccharides in animal production can improve body health, enhance immunity and antioxidant capacity, and improve production performance. Therefore, this paper mainly reviewed the physicochemical properties, biological functions of plant polysaccharides and their application in aquaculture, so as to provide a reference for their further promotion and application in aquaculture. [ABSTRACT FROM AUTHOR]

In recent years, the scale of poultry breeding in China is gradually expanding, and the demand for feed raw materials is also rising. At present, the poultry industry is facing the problem of shortage of protein feed resources, so it is urgent to find high-quality and sustainable protein feed raw materials. The edible insect black soldier fly (Hermetia illucens L., BSF) has become a potential sustainable new protein feed, which can replace traditional protein feed materials such as soybean meal and fish meal. BSF is a saprophytic insect, which mainly feeds on organic waste, and has the characteristics of rapid growth and reproduction, extensive feeding and high feed conversion rate. The larvae or pre-pupae of BSF are rich in protein, fat, minerals, and trace elements, and their content of essential amino acids is comparable to that of fish meal and soybean meal. They also contain bioactive substances such as lauric acid, antimicrobial peptides, and chitin. Based on the nutritional characteristics of BSF larvae and processed products, this paper reviewed the research progress of BSF in poultry breeding, in order to provide a reference for the wide application of BSF in poultry production. [ABSTRACT FROM AUTHOR]

Nibea is rich in protein, essential amino acids, fatty acids, trace elements and swim bladder collagen. The meat is tender, delicious and has high nutritional value. Nibea also has the advantages of adaptability, rapid growth, and strong stress resistance, and is one of the important mariculture fish in the coastal areas of China. Currently there are a lot of reports on the nutritional requirements and feed of Nibea, but studies on its precise nutritional requirements at different growth stages and the relationship between nutrients and functional feed additives are still not thorough enough. The cultivation of Nibea is mainly based on chopped and fresh ice mixed fish, lacking specialized formulated feed, which has disadvantages such as nutritional imbalance, unstable quality, and water pollution. In this paper, the research progress of protein, fat, carbohydrate, vitamin, and mineral requirements as well as dietary protein sources, fat sources, and additives were reviewed in order to provide a reference for the study of precise nutritional requirements and the preparation of efficient and environmentally friendly compound feeds of Nibea, so as to promote the healthy and sustainable development of Nibea aquaculture industry. [ABSTRACT FROM AUTHOR]

Objectives: As an important grain-producing area and the most populous plain area in China, the groundwater resources in the North China Plain are seriously exploited for agricultural irrigation and domestic water use, and it is of great ecological significance and socio-economic value to accurately monitor the changes of groundwater storage in the region and continuously recharge and restore the groundwater. Methods: The gravity satellite data were used to invert the groundwater storage changes in the North China Plain, and compared and analyzed with the hydrological model, precipitation information, South-North water transfer project and groundwater well information, and proposed a method to integrate shallow groundwater storage changes and deep groundwater changes to obtain the contribution of total groundwater. Re⁃ sults: The results show that: (1) Both gravity satellite and global land data assimilation system model estimated water storage changes in the North China Plain exhibit obvious seasonal characteristics. (2) The correlation coefficients between the gravity satellite inversions and the shallow groundwater well estimations are consistent in terms of interannual variability, multi-year trend variability and seasonal variability, with correlation coefficient greater than 0.8. (3) Considering the contribution of deep groundwater, the estimated results of integrating shallow and deep groundwater well information and the gravity satellite inversions are in better agreement than those using only shallow groundwater, and indicate that shallow groundwater is the main variation of groundwater storage change. (4) From 2003 to 2017, groundwater in the North China Plain is in a long-term deficit state, with a gravity satellite estimated groundwater deficit rate of-1.3± 0.6 cm/a. From 2018 to 2020, the gravity satellite estimated groundwater deficit rate is −1.9±0.7 cm/a, which is almost consistent with the total groundwater deficit rate of -1.8±0.8 cm/a during the same period taking into account the deep groundwater; the groundwater trend in 2021 is increasing, and the growth rate of gravity satellite inversion is 12.7±1.8 cm/a, which is more consistent with the total ground-water well estimation in the same period. The correlation coefficient is 0.98, and the weighted fused total groundwater storage change is more consistent than that estimated by using only shallow groundwater. (5) Precipitation and North-South water transfer project have a direct impact on water storage changes in the North China Plain, making a significant contribution to the mitigation of groundwater storage deficits and groundwater restoration. Conclusions: The research method in this paper provides a new way to accurately observe groundwater storage changes in the North China Plain, and provides reliable verification of gravity satellite monitoring results. [ABSTRACT FROM AUTHOR]

Collaboration in the prevention and control of water resource disasters is an important part of the prevention and cooperation of international river conflicts. It is also an important means to promote the de-securitization of water resources. Taking the Ili River and Lancang-Mekong River, two typical transboundary rivers in China, as the objects of analysis, this paper identifies the deficiencies in disaster early warning and emergency management of transboundary rivers in China from the perspectives of breadth, depth, and closeness. The main existing problems are summarized as follows: (J) There is no mature collaborative management mechanism for water resource disasters within the basin with an integrated platform to share data, predict disasters, formulate strategies, and communicate information. © Due to the lack of an efficient two-way disclosure system, there is little information sharing among the basin countries. © Special funds for water resource cooperation in the basin are far from enough, and they are characterized as scattered, small in amount, and intermittent. Accordingly, this paper proposes four principles for collaborative management over transboundary river disasters: information sharing, equal consultation, no significant harm, and integrated planning. Furthermore, a mechanism for disaster early warning and emergency cooperative management over transboundary rivers is proposed, including a special fund for basin water resource cooperation, an information sharing system, a disaster risk assessment system, and an emergency management decision system. Safeguard measures to support the operation of the management mechanism are put forward, including joint construction of water conservancy projects, technical assistance, interest compensation, legal system construction, fund establishment, disaster insurance, and so on. The mechanism proposed in this paper can not only make up for the deficiencies of the existing management mechanism framework of transboundary rivers in China, but also provide a reference for the implementation of disaster early warning and emergency management of other transboundary rivers. [ABSTRACT FROM AUTHOR]

With the rapid development of intensive poultry breeding in China, the demand for poultry feed raw materials is increasing rapidly. However, the shortage of cereal feed and the persistently high price make it urgent for poultry feed production industry to explore cheaper energy alternative feed. Cassava has the characteristics of high yield, rich starch and fiber, high energy value, etc. It can replace corn or other energy feed in poultry breeding. The effective use of cassava products has been proved to reduce the feed cost of poultry production. However, the utilization of cassava is limited by many factors, such as low protein and anti-nutritional factors. Using correct processing and scientific formula, the addition level of cassava in poultry diet can be improved. In this paper, the nutritional characteristics, feed utilization, and application of cassava in poultry diet were reviewed, which provided a reference for the application of cassava in poultry diet. [ABSTRACT FROM AUTHOR]

The International Codex Alimentarius Commission (CAC) issued a new version of the general rules on food hygiene in 2020, which revised and improved the structure, definition and technical contents of the standard, clarified the important role of good hygiene practices in food safety management, and emphasized the advantages of Hazard Analysis and Critical Control Point (HACCPL) in dealing with more complex food safety issues. It also added the latest achievements of standardization research in the field of food safety in recent years, such as allergen control and food safety culture. By comparing the new version of the standard with the 2003 edition of general principles of food hygiene, this paper expounds and analyzes the main changes of the new version of the standard in detail, so as to provide reference for the formulation and implementation of food-related standards in China. [ABSTRACT FROM AUTHOR]

Strengthening the supply of feed grain is an important starting point for stabilizing the supply and demand of feed grain market and promoting the high-quality development of animal husbandry. Based on the monthly data samples of feed grain supply and demand structure from January 2006 to December 2022, this paper uses the VAR model to empirically analyze the feed grain supply and demand structure in China. The results showed that maize supply had the most obvious influence on feed grain supply and demand structure, followed by urban and rural residents' consumption of livestock products, and rice supply was the lowest. From the perspective of supply, the main influencing factors of feed grain supply and demand structure change include maize supply, soybean meal supply, sorghum supply, and wheat supply. From the perspective of demand, the consumption of livestock products by urban and rural residents was the main factor affecting the change of feed grain supply and demand structure. From the perspective of emergencies, natural disaster risk index was not the Granger cause of the change of feed grain supply and demand structure. Under ignoring other factors, the contribution rate of natural disaster risk index to the change of feed grain supply and demand structure after seven weeks was 23.62%. Research shows that changes in the supply and demand structure of feed grains are mainly influenced by factors such as corn supply, consumption of livestock products by urban and rural residents, soybean meal supply, sorghum supply, wheat supply, and natural disaster risks. [ABSTRACT FROM AUTHOR]

BACKGROUND: Autophagy has become a rapidly developing research hotspot in the biomedical fields. Many researchers are actively exploring the molecular regulatory mechanism of autophagy in a variety of diseases. However, the role of autophagy in hair growth is still unknown. OBJECTIVE: To review the current research progress and application value of autophagy in hair growth and regeneration, to understand the role of autophagy in hair growth, to explore the pathogenesis of autophagy in pathological hair loss, and to provide new ideas for the study of drugs for hair loss. METHODS: Using “hair follicle growth, hair growth, hair regeneration, autophagy associated proteins, autophagy activity, autophagy associated genes, autophagy” as Chinese search terms and “hair growth, hair follicle, hair regeneration, autophagy” as English search terms, PubMed and CNKI databases were searched. The research progress on autophagy, hair growth and the role of autophagy in hair growth in and outside China in recent years was reviewed and summarized. Articles incompatible with the subject content of the paper were excluded. Finally, 78 articles were included for the result analysis. RESULTS AND CONCLUSION: (1) Autophagy is a normal metabolic process in eukaryotes with complex molecular mechanisms and functional properties, which is beneficial to cell survival and cell death. (2) Alopecia-related diseases are associated with changes in autophagy activity, which can regulate hair growth cycle. Knockout or overexpression of autophagy-related genes can change the state of hair growth. Multiple autophagy related signaling pathways have been found to be related to hair follicle growth. Activators or inhibitors of autophagy can be used to treat or prevent hair loss. [ABSTRACT FROM AUTHOR]

Objective This paper discusses the quality requirements of ethane for the production of ethylene to determine the different quality requirements of ethane for different utilization and transportation ways, and further discusses the detection methods of different quality indicators of ethane in order to provide technical support for the relevant industry producing ethane from natural gas.Methods This paper mainly refers to the quality requirements of ethane products in the American Gas Processing Engineering Data Manual (GPSA) and the PetroChina enterprise standard of Q/SY 01027-2019 Technical specification of ethane extracted from natural gas. Based on these two documents, the quality requirements and indexes of gaseous and liquid ethane products in China were studied and discussed intensively, respectively. Results The ethane products may be divided into three classes according to their gaseous and liquid characteristics. Ethane products come from natural gas, so it is appropriate to use natural gas sampling method for sampling and to use related analysis and test standards of natural gas for its main quality determination. Conclusions At present, there are no national or industrial standards for ethane products in China. It is suggested that the relevant departments should faciliate the development process of national or industrial standards for ethane products to uniformly regulate the quality indicators, classification, inspection rules and delivery acceptance of ethane products. And then it can provide technical support for the implementation of ethane recovery projects, as well as promote the establishment of China’s ethane market and production system. [ABSTRACT FROM AUTHOR]

Medium-low temperature magmatic hydrothermal gold deposits are widely distributed and large in scale, accounting for about 65 % of the gold deposits in China, which is the main mineral source of gold in China. In the process of prospecting, different types of deposits correspond to different prospecting methods. The determination of the metallogenic model of deposits can provide theoretical support for prospecting as well as theoretical guidance for mineral exploration and prediction. In view of this, the ontology construction and inference mechanism of medium-low temperature magmatic hydrothermal gold deposits are studied in this paper with reference to prospecting and prediction theory of exploration area. Using Protege ontology modeling software, the ontology modeling of the deposit is completed. Based on the SWRL inference rule language, the genesis type of the deposit is defined by inference rules. A set of ontology inference mechanisms oriented to the deposit type discrimination is designed. The inference is completed with the HermiT inference device. After a lot of experiments, the ontology inference method of the deposit genesis type proposed in this paper has a good application effect in the discrimination of gold deposit genesis types and can be widely used in the discrimination of other types of deposit genesis. [ABSTRACT FROM AUTHOR]

Italy is one of China's most important tourist countries in South Europe. Based on official statistics and big data, this paper analyzes the characteristics of Italian visiting-China market in depth. The results show that: ①In terms of the inter-annual development stages, the Italian visiting-China market has gone through two main stages of volatile growth and steady de‐ velopment since 1980. ② In terms of demographic characteristics, Italian tourists are mostly male, youth, and business type. ③In terms of seasonal changes during the year, the peak sea‐ sons are mainly from March to May and July to November, the normal seasons are January and June, and the off-seasons are February and December. ④In terms of the spatial distribution of tourists, the regions most visited by Italian tourists are Shanghai, Zhejiang, Beijing, Shaanxi, Guangdong, Yunnan and some other provinces. ⑤In terms of air passenger behavior preference, inbound air passengers mainly book through retail travel agencies, mostly choose economy class, and stay in China for a long time. ⑥In terms of total per capita consumption and composition, tourists have strong spending power, and their consumption is based on basic consumption such as long-distance transportation, accommodation, catering, and scenic sightseeing. Finally, in or‐ der to provide theoretical guidance and practical enlightenment for the development of China's inbound tourism in the post-pandemic era, this paper puts forward market recovery suggestions in the fields of restarting the China-Italy culture and tourism year, business tourism market, im‐ proving the level of tourist facilitation, and deepening the inbound tourism industry chain. [ABSTRACT FROM AUTHOR]

A good eco-environment is the fairest public product and most beneficial to people' s livelihood and well-being. Everyone has the right to enjoy a safe and healthy living environment; however, it is undeniable that environmental inequality has been a longterm problem. How to achieve efficiency and equity in environmental governance is an important issue to be further explored. Previous studies have mostly discussed the influencing factors of environmental inequality from the perspectives of race and income level, but few studies have explored the impact of policy instruments and their mixes on environmental inequality. To make up for this deficiency, this paper used the Williamson coefficient to measure the environmental inequality coefficient of 25 provinces and regions from 2003 to 2019, based on the data of SO2 emissions from 278 prefecture-level cities, and empirically examined the complex relationship between policy instruments and environmental inequality with the fixed effect panel model and the threshold effect model. It was found that: ① The overall provincial environmental inequality in China showed a trend of slowly decreasing and then rising, and there was obvious regional heterogeneity between the eastern, central, and western regions. In addition, there existed a mismatch phenomenon of improving environmental quality and increasing inequality. Therefore, how to improve the environmental welfare of the minority has become the focus of environmental governance. ② Command-and-control policy instruments alleviated provincial environmental inequality to some extent due to their focus on fairness and public demands, while market-based policy instruments significantly aggregated provincial environmental inequality due to their features of pursuing governance efficiency. ③ The higher the level of pollution and innovation, the better for command-and-control policy instruments to alleviate provincial environmental inequality. Market-based policy instruments would aggravate environmental inequality at a low level of pollution and a high level of innovation. Based on the above conclusions, this paper proposes that environmental governance should be promoted and environmental inequality should be alleviated in such aspects as paying attention to the equity of pollution distribution, designing reasonable policy mixes, and finding differentiated governance paths. This study has important implications for selecting policy instruments, improving policy-making ability, and eliminating environmental inequality. [ABSTRACT FROM AUTHOR]

The core of low-carbon development lies in reducing carbon sources and increasing carbon sinks, and the construction of free trade zones (FTZs), as an experimental field for China' s comprehensively deepening reforms, is of great significance to urban lowcarbon development. Based on the panel data from 288 cities in China from 2007 to 2020, this paper first comprehensively evaluated the carbon neutrality levels of cities from two aspects: carbon emission and sequestration. Then, it used the multi-period difference-indifferences method and the spatial Durbin model to explore the 'low carbon effect' of the establishment of FTZs. The results showed that: the establishment of FTZs had a significant impact on the low-carbon development of the cities where they were located. Specifically, the establishment of FTZs could drive urban low-carbon development from within the cities by improving their digitization and resource allocation efficiency. At the same time, increased government attention to green development enhanced the carbon emission disincentive and boosted carbon uptake facilitation, fostering a more robust urban low-carbon development. Moreover, the carbon emission suppression effect, carbon absorption promotion effect, and carbon neutral effect of establishing the FTZs varied according to the batches of the establishment, city location, and city characteristics. The 'low-carbon effect' of the first two batches of FTZs, the region south of the Qinling-Huaihe River, and the cities with a higher degree of openness were more pronounced overall. Furthermore, the establishment of the FTZs also had a certain spatial spillover effect on urban low-carbon development. Based on these findings, the paper suggests prioritizing top-level design, exerting comparative advantages, and promoting the low-carbon development benchmark area in a gradient manner. Acceleration of trade facilitation and digital financial reform, promotion of the digital transformation of traditional industries with advantages, and encouragement of digital and low-carbon deep integration are also recommended. The introduction of highquality foreign investment should be combined with the improvement of the effectiveness of supervision and services to improve the efficiency of resource allocation. The study proposes leveraging digital platforms and free trade alliances to maximize the FTZs' catalytic effects. Overall, this study offers significant theoretical and practical insights for enhancing the construction of the FTZs, promoting urban low-carbon development, and advancing towards the goal of carbon neutrality. [ABSTRACT FROM AUTHOR]

During the last two decades, although China has made remarkable progresses and achievements in space industry, there is still a considerable gap in side of technology and management between other space powers. In order to improve the international competitiveness of Chinese space and speed up the construction of Chinese space security and technology safety, it is urgent to evaluate and optimize the efficiency of space engineering management as the important basis for decision-making and management. With the connotation of spacecraft engineering management, this paper selects balanced scorecard (BSC) for spacecraft engineering management evaluation. The method designs a kind of a four-dimensional evaluation index framework with concrete items, which integrates characteristics of aerospace into the traditional dimension of value, customer, operational management process, growth and development, and combines index weight and expert estimation. Finally, this paper lists out evaluation cases as summarization of BSC problems and concerns, and proposes space project management evaluation assumption, hoping it can help space engineering moving in the direction of high quality, high efficiency and high benefit. [ABSTRACT FROM AUTHOR]

The Yangtze River Basin is an important part of China's ecology and social economy, and the land use/cover status is experiencing rapid changes. As the development of remote sensing technology, the Internet of things and social media, we can obtain huge, multi-dimensional relevant data of land use/cover, the process of land use/cover, driving factors and ecological response of research, the development of the Yangtze river basin planning and ecological protection provides a decision-making basis. First, this paper reviews the current research on land use/cover change in the Yangtze river basin, and then expounds the re⁃ search methods and conclusions in terms of the driving mechanism and ecological effects of land use/cover change. Finally, this paper discusses the difficulties and challenges faced by existing researches from the differences of land use/cover products, regional driving factors, complexity of ecological environmental change process and comprehensive evaluation of ecological service value and the possible directions of future researches. [ABSTRACT FROM AUTHOR]

Since the 12th Five-Year Plan, large-scale and long-term haze pollution has become a major bottleneck restricting China ’s high-quality development and ecological civilization construction. Facing the pressures of economic development and environmental governance, innovation, and technological progress is a win-win choice for China to achieve economic growth and improve air quality. Based on patent stock and PM2.5 concentration data of 282 prefecture-level cities from 2004 to 2019, this paper constructed two instrumental variables, namely, administrative protection of intellectual property rights and public innovation environment and analyzed the effects and mechanisms of innovation on haze pollution by the two-stage least square method. The study found that the use of air flow coefficient, temperature inversion days, and rainfall could effectively control the spatial diffusion of haze, and both green innovation and non-green innovation can significantly reduce haze pollution. It was found that, after adding instrumental variables, the invention patent and utility-model patent were the most effective in haze treatment, and the haze control effect of non-green patents exceeded that of green patents. Heterogeneity analysis showed that the haze control effect of the patent stock in the eastern and central cities was relatively strong, and the effect of innovation to curb haze was strengthened after 2012. Furthermore, in cities with abundant human capital and a high degree of marketization, innovation was more conducive to reducing PM2.5. The test on the intermediate mechanism showed that green patents could achieve haze management front-end prevention and end treatment through industrial green transformation and energy efficiency improvement, while non-green patents could play a role through allot efficiency improvement mechanisms. The above conclusions are still valid after a series of robustness tests, such as changing indicators and considering the spatial spillover effect of haze pollution. Based on the empirical results, this paper puts forward the following policy recommendations: local governments should strengthen the intellectual property protection system, promote more investment and incentive policies for green technology innovation, encourage high-quality innovation output at the ecological level, and improve urban air quality. [ABSTRACT FROM AUTHOR]

(1) Background--With the implementation of "The Opinions on Establishing and Improving the Value Realization Mechanism of Ecological Products" in 2021, the value realization of the ecological products is a bridge connecting the ecological protection and economic construction of the forest areas after the reform of the state-owned forest areas in Northeast China. (2) Methods--Based on the ecological niche theory, this paper took the understory ecological products in the state-owned forest areas of Northeast China as the research object, firstly sorted out and summarized the previous literature studies and relevant data, analyzed the current situation of the value realization of the understory ecological products from four aspects of resources, environments, demands and technologies ecological niches, then found out the dilemmas faced in the value realization of the understory ecological products, and finally innovatively put forward a new model to realize the value of the understory ecological products. (3) Results--From the perspective of ecological niche, this paper innovatively combines the ecological niche theory with the value realization of the understory ecological products in the state-owned forest areas of Northeast China, and analyzes the dilemmas encountered in the value realization of the understory ecological products from four aspects: resource niche, environment niche, demand niche and technology niche: the narrow resource niche and inadequate exploitation and utilization of the ecological product resources, environment niche to be improved and lack of specific development policies for the understory ecological products, inaccurate grasp of demand niche and uncoordinated value realization of the ecological products with economic development needs, few technology niche levels and lagging technological innovation of the ecological products in the stateowned forest areas, and then puts forward the new model of realizing the value of the understory ecological products in the state-owned forest areas of Northeast China. (4) Conclusions and Discussions--First, expand the width of resource niche and adopt the resource development model of "original ecological breeding + forest X". Develop the original ecological breeding model according to local conditions and strengthen the construction of hardware and software. Second, optimize the environment niche and gradually form the market transformation model of "EODF+ understory ecological products". Reconstruct the ecological network of the state-owned forest areas in Northeast China, establish a good ecological foundation, use EODF mode to bundle ecological environmental protection and restoration of the forest areas and management of the understory ecological products, improve the efficiency of market transformation of the understory ecological products, comprehensively calculate the joint development projects and implement internal regurgitation-feeding of the projects. Third, obtain the demand niche advantage and accurately adopt the demand expansion model of "scenic areas and cities integration + multi-core attraction". With the scenic areas in the forest areas as the core, form the scenic areas and cities integration system, implement cross-border linkage and multicore attraction to create the demand for the understory ecological products and avoid the phenomenon of ecological niche overlap based on the real market demand. Fourth, improve the level of technology niche and adopt the value realization model of "blockchain + understory ecological products". Manage and record the whole process of the understory ecological products from the forest areas to production in real time by using blockchain technology to ensure product quality and safety, and carry out the digital management of the understory ecological products in the state-owned forest areas of Northeast China by using blockchain technology. [ABSTRACT FROM AUTHOR]

Assuming responsibility for emission reduction is an important part of participating in the global governance of climate change. Countries with a carbon neutrality target now cover about 75% of global greenhouse gas emissions. Carrying out fairness evaluations of their carbon neutrality targets provide a strong basis for the global carbon inventory. In this paper, the target years of carbon neutrality for major countries and regions under the global target of 2 °C and 1.5 °C are studied using the burden sharing model. On this basis, this paper simulates the possible pathways of carbon neutrality and evaluates the ambition of emission reduction targets in terms of annual emission reduction, per capita emission, and cumulative per capita emission. The results show that, from the perspective of equity, most of the developing countries cannot meet the global goal of 1.5 °C. The United States and the European Union nations could achieve carbon neutrality by 2050 by continuing their annual emission reductions under their existing NDC targets. However, to achieve carbon neutrality by 2060, China's annual emission reduction rate from 2030 to 2050 will be 6.7%, and the annual amount of emission reduction accounts for 51% of the global amount under the 1.5 °C target. Meanwhile, China would become the main force behind global cumulative emissions in the following decades. Thus, the emission reduction pathways China chooses will have an important impact on global climate mitigation progress. Based on the above research conclusions, this paper proposes that developed countries and developing countries should explore bilateral or multilateral cooperation in technology and finance in the field of climate change. Under the great pressure to achieve carbon neutrality, China needs to carry out research on the overall emission reduction pathways as soon as possible and clarify the paths at the scale of sectors, industries, provinces, and time stages. [ABSTRACT FROM AUTHOR]

China' s economy is in the midst of a crucial transition from high-speed growth to high-quality development. Strengthening the rigid constraint of water resources and curbing the disorderly expansion of high water-consuming enterprises are crucial to alleviating structural overcapacity and realizing economic development transformation from a resource-driven to an innovation-driven mode. Based on the data of A-share listed companies from 2010 to 2021, this paper explored the impact of the water resource 'fee-to-tax' policy on the over-investment of high water-consuming enterprises from the perspectives of free cash flow and technological innovation. The research results showed that levying a water resource tax could significantly inhibit the over-investment of high water-consuming enterprises, and the conclusion was still robust after a series of robustness tests (the parallel trend test, the placebo test, the PSM-DID, changing the measurement method of explained variables, excluding other policy influences, and the instrumental variable test). The mechanism analysis showed that levying a water resource tax could restrain over-investment by reducing the free cash flow of high water-consuming enterprises and stimulating technological innovation. At the same time, the restraining effect of water resource taxes on excessive investment in high water-consuming enterprises was more obvious in state-owned enterprises, enterprises with higher financing constraints, and those with higher water intensity. Based on the above conclusions, this paper holds that the water resource 'fee-to-tax' policy should be continuously improved, and the incentive mechanism of water resource tax should be improved while increasing the promotion of water consumption monitoring equipment. The flexibility of policy implementation should be strengthened, and different strategies should be adopted to guide high water-consuming enterprises with different operating conditions and investment cycles to change their production methods and investment behaviors. To implement the policy of 'giving priority to saving water' systematically, we should not only strengthen the water-saving supervision, but also raise the awareness of water users to save water voluntarily. By exploring the impact of water resource tax on the over-investment of high water-consuming enterprises, this paper attempts to deepen the understanding of the water resource 'fee-to-tax' policy, enrich the relevant literature in the field of resource regulation research, and provide a policy reference for realizing the coordinated development of economy, society, and resource carrying capacity. [ABSTRACT FROM AUTHOR]

The promotion policies of the new energy vehicle (NEV) industry have evolved over time along with its rapid development in China. The NEV market has advanced to a new level where it complies with international practices and fully accommodates competition. Studying the market implications of the NEV promotion policy adjustment is of significant theoretical and practical value given the subsidy withdrawal, technological advancement, and sales growth. Based on interrupted time series analysis, this paper used 60 monthly time points from January 2017 to December 2021 to construct a time-series data set. Taking promotion policy adjustment as a policy variable, this paper estimated the market effect disparities of promotion policies in major cities in China through counterfactual analysis, and the special phenomenon of NEV sales climbing caused by subsidy withdrawal was further analyzed. Furthermore, the study findings were verified by robustness and heterogeneity tests. The result showed that: 1 After several adjustments, the national NEV promotion policy achieved remarkable results in the first-tier and new first-tier cities and other developed areas in general. 2 The key factor to promote the NEV market was technological advancement, and the essence of subsidy withdrawal was to promote more rapid technological innovation among relevant enterprises by raising the threshold of subsidy technology and eliminating backward production capacity. It was the subsidy withdrawal that led to sales growth. 3 The policy of relaxing curbs on NEV purchases failed to significantly promote the sales of NEVs and did not seem to be unsustainable, so it should not be regarded as a key promotion policy in the future. It is suggested that the pertinent departments shift their promotion policies in favor of the user side, increase investment in NEV technology research and development, accelerate the elimination of backward production capacity through policies and regulations, adjust the license number plate support policy for new energy vehicles in due course, and further improve the double-credit policy. [ABSTRACT FROM AUTHOR]

Recirculating aquaculture is one of the main development directions of aquaculture in the future. The excessive enrichment of CO2 in the system will affect the filtration efficiency of biofilter and the growth and development of aquaculture objects. Therefore,the efficient removal of CO2 is the key technology in the whole circulating aquaculture system. In the development process of China’s circulating aquaculture industry for more than 30 years,various CO2 removal technologies have become increasingly mature. This paper focuses on the application status of industrial recirculating aquaculture system at home and abroad,introduces the source, harm and basic principle of CO2 removal in recirculating aquaculture system,summarizes the characteristics and research progress of three CO2 removal processes of gas exchange method,chemical method and ecological method,summarizes and compares the advantages of various removal technologies. In view of the problems of single method,large space occupied by main facilities and high cost of CO2 removal,this paper puts forward some future development countermeasures,such as the combination of various removal processes,intensive operation of equipment system,optimization of removal process and intelligent equipment. The purpose of this study is to provide reference for the optimization of CO2 efficient removal technology and the development of special equipment for industrial recirculating aquaculture in the future. [ABSTRACT FROM AUTHOR]

In order to fully understand the construction of chemistry textbooks for higher education in the foreign countries and provide a reference for the construction of chemistry textbooks in China, this paper investigates the development and status quo of foreign chemistry teaching materials, and analyzes the construction, discipline structure and technical characteristics of foreign chemistry teaching materials, based on the construction history and content of Foreign Teaching Materials Center of Chemistry. This paper reveals the problems existing in the construction of foreign chemistry textbooks in China, and puts forward some suggestions on promoting the construction of foreign chemistry textbooks. [ABSTRACT FROM AUTHOR]

High precision gravity observation is an important tool of seismological research and has played an important role in earthquake prediction in China in recent years. This paper first briefly introduces the development status and classification of gravity observation instruments, then compares the seismic gravity observations and researches for seismic events between China and Japan from the aspects of the scale of the seismic gravity observation network, the gravity data processing process and the interpretation of gravity observation results, and finally systematically analyzes the challenges faced by the gravity observation re⁃ search in China. The aim of this paper is to provide some reference and enlightenment for the follow-up work. [ABSTRACT FROM AUTHOR]

COVID-19 is spreading rapidly around the world. In order to diagnose it quickly and accurately and thus block the chain of epidemic transmission, the study proposed a deep learning-based classification network DLDA-A-DenseNet. Firstly, DenseNet-201 combined deep layer dense aggregation to aggregate feature information at different stages to enhance its ability to identify and localize lesions. Secondly, this paper proposed efficient multi-scale long-range attention to refine the aggregated features. Moreover, this paper used a balanced sampling training strategy to eliminate the bias for the class imbalance problem of CT image dataset. Testing on the China consortium of chest CT image investigation dataset, the method improved 2.24%,3.09%,2.09%,2.60% and 3.48% in accuracy, recall, precision, F1 score and Kappa coefficient compared with DenseNet-201,and achieved an optimal accuracy of 99.50% on COVID-CISet image dataset. The results show that the proposed COVID-19 CT image classification method can fully extract the lesion features of CT slices compared with other methods, and has higher classification accuracy and good generalizability. [ABSTRACT FROM AUTHOR]

Geological reference material is a primary standard to ensure the accuracy of geological sample analysis results. After more than 40 years of development, China has developed and certified thousands of geological reference materials covering different media such as rock, ore, soil, sediment, organism, and water. China’s metrological management department divides the certified reference material into two classes according to the classification class, the first-class reference material (GBW) and the second-class reference material [GBW(E)]. According to their attributes and application fields, they are divided into 13 categories, and the geological reference materials belong to the seventh category [GBW07 and GBW(E)07]. It can be seen from the National Sharing Platform for Reference Materials (https://www.ncrm.org.cn) that by the end of the 13th Five-Year Plan, the total number of geological reference materials approved by the State Administration for Market Regulation is 1013, including 718 first-class certified reference materials, and the amount of first-class certified reference materials ranks first in the 13 categories (Fig.1). Geological materials are the most important and basic raw materials in the development of human society, with various types, complex components, and large differences in component content. It is because of the complexity of geological materials and the demand for reliable quantitative analysis that thousands of geological reference materials have been developed. Some reference materials developed by some industrial geological agencies are classified into other categories in classification management, such as isotope reference materials belonging to the fourth category, biological composition reference materials belonging to the tenth category, coal reference materials belonging to the eleventh category, these reference materials are widely used in related geological work, and in this paper they will be classified as geological reference materials. To systematically grasp the development status of geological reference materials in China, the first-class geological certified reference materials are comprehensively sorted, and are divided into six categories according to the type of matrix, property value and application scope: basic, ore, marine, environment, energy and special purpose (Table 1), and the development situation of each type, matrix characteristics and fixed value index respectively are summarized. On the basis of summarizing the results, on one hand, the main problems existing in the application of geological reference materials and the causes of these problems are analyzed. On the other hand, the detailed technical problems that may affect the uncertainty in the process of homogeneity, stability and characterization are discussed, and the views and suggestions are expounded. In this paper, the first-class geological certified reference materials are divided into the following six categories to summarize the development of each type： 　　(1) 260 basic geological reference materials have been developed, the type of matrix including rock, soil and river sediments. The characteristic components of the certified value are generally 70 elements and compounds, which are mainly used as monitoring standards for sample analysis in basic geological surveys and research. 　　(2) 272 ore geological reference materials have been developed, including precious metal ore, metal ore, single mineral, and non-metallic ore. The specific mineral types are shown in Table 1. There are generally 20 property values, which are the main technical indicators in mineral exploration. They are mainly used as a monitoring standard for geological exploration, mineral processing and smelting, comprehensive utilization, commodity inspection and trade amongst other fields. 　　(3) 16 marine geological reference materials have been developed, including marine sediments and marine minerals. The specific samples include 10 marine sediment reference materials namely, 1 near sea, 1 Yellow Sea, 2 South China Sea, 1 East China Sea, 3 deep Pacific Ocean, 1 Antarctic Ocean and 1 Arctic Ocean. Six marine mineral reference materials are three polymetallic nodules and three ocean cobalt-enriched crusts. The characteristic composition of the certification value is the same as that of the basic geological reference material, but slightly less, generally 51-71 kinds. This is a necessary chemical composition measurement standard for marine sediment measurement and marine mineral resource survey and research. 　　(4) 101 standard materials for environmental geology have been developed, including the available state of soil elements, the form of soil and sediment elements, the valence state of groundwater elements, the extractable state of soil elements, biological inorganic elements, organic pollutants in soil and sediment and other reference materials. The characteristic components of the matrix and certified values are the total amount of inorganic elements in biological samples, the available states, and forms of elements in soil and sediment, the valence states of elements in water and organochlorine pesticides, polychlorinated biphenyls, and polycyclic aromatic hydrocarbons in soil and sediment. This kind of reference material provides analytical quality monitoring standards for land quality geochemical surveys and evaluation, regional ecological geochemical evaluations, multi-objective geochemical surveys and detailed surveys of soil pollution. 　　(5) 23 energy geological reference materials have been developed. The property values of oil-generating rock reference materials are organic carbon, pyrolysis hydrocarbon S2, pyrolysis peak temperature Tmax, and chloroform asphalt “A”. The property values of coal reference material are calorific value, ash, volatile matter, total sulfur, carbon, hydrogen, nitrogen, true relative density and phosphorus, chlorine, fluorine, and arsenic. The property values of the reference materials of highly evolved hydrocarbon source rock are pyrolysis hydrocarbon S2, pyrolysis peak temperature Tmax, and total organic carbon TOC. This is the monitoring standard for the exploration, evaluation and rational utilization of energy and mineral resources. 　 　(6) 129 reference materials for special purposes have been developed, including 20 synthetic reference materials for emission spectroscopy and 4 synthetic reference materials for X-ray fluorescence spectroscopy analysis. The property values are 28-29 inorganic chemical elements. There are 38 isotope reference materials, and the property values of those include isotope abundance and abundance ratio. There are 35 electron probe reference materials, and the property values are generally two principal components of their minerals. There are 15 reference materials for phase analysis, and the property values are the corresponding main phase. There are 5 soil limit water content reference materials, and the property values are 10mm liquid limit, plastic limit, and plastic index. There are 12 soil pH reference materials, and the property values are pH. It can be seen from the classification and summary that the geological reference material matrix in China is rich in types and quantities, which establishes an influential quality monitoring system for geological sample analysis, ensures the reliability and consistency of geological sample test data, and significantly improves the comparability and scientific value of relevant data. 　 　At present, there are still some problems in the application and development technology of a large number of geological reference materials. The problems are discussed and analyzed, hoping to draw attention to improving the value determination class of geological reference materials. In the aspect of application, the specific problems existing in different types of geological reference materials and their causes at the present stage are analyzed and development suggestions are proposed, according to the work needs of current mineral resources, international cooperation, marine strategy, ecological civilization and other fields. In the aspect of development technology, some detail technologies which may affect the value determination class in the process of homogeneity, stability and characterization are analyzed. In the aspect of development technology, some detail technologies which may affect the setting in the process of homogeneity, stability and value setting are analyzed. The test method of homogeneity and the evaluation method of stability uncertainty are discussed. Suggestions are made for the uncertainty evaluation method of unexamined elements for homogeneity test and control limit of relative extended uncertainty. 1. Three problems existing in the current application of geological reference materials are analyzed： 　 　(1) The quantity of some types of reference materials developed is small, the gradient distribution of characteristic values is insufficient, and the matrix type is simple. For example, the amount of marine geology, micro-area analysis, energy and mineral resource reference material development is small. The ore-forming elements of key metal ore reference materials are mainly low content, lacking rich ore grade or higher content grade. The matrix types of the samples of organic pollutant reference materials are only soil and sediment, and the property values are only organochlorine pesticides, polychlorinated biphenyls, polycyclic aromatic hydrocarbons and other compounds, and the matrix types and target compounds are few. The main reasons for these problems are difficulty in obtaining samples, little working demand, difficulty in ensuring the uniformity and stability of the sample preparation technology, large error of analysis technology unable to determine the value. 　　(2) There are many components in the geological reference materials with mature development technology that have no certified values. The reasons of low element content and test interference are mainly analyzed. 　　(3) At the current class of analytical technology, there is only one measurement method for several elements, and for some elements, with the widespread application of modern instrumental analysis technology, the optional measurement method is gradually becoming singular. 　　2. The detail technology of four aspects in the development of reference material is discussed： 　　(1) Uniformity testing method. XRF is a widely used measurement method for the uniformity test of geological standard materials due to its high testing precision. However, due to its large sample size, XRF cannot meet the requirements of minimum sample size. Since the release and implementation of China National Technical Specification for Measurement “General and Statistical Principles for Characterization of Reference Materials” (JJF1343) in 2012, the uniformity of reference materials was tested by ICP-MS and ICP-OES under 0.1g weighing sample[24-30] . The measurement precision of these two methods is not as good overall as that of XRF, and the accuracy of individual elements is poor, which may cause the numerical value to be too large when calculating the uncertainty introduced by uniformity, thus affecting the reasonable evaluation of the uncertainty of property value. For this reason, some scholars[34-35] improved the XRF sample preparation device, studied the accuracy and precision of the method under 0.1g weighing sample, and verified the application effect for uniformity testing. However, only 10 major components in the reference materials of soil and stream sediments were tested under 0.1g weighing sample, while the reference materials of other matrix types and other trace elements, especially heavy elements, have not been studied and tested. Therefore, the feasibility of the XRF method with a sample size of 0.1g still needs to be verified. 　 　(2) Uncertainty calculation method for elements without uniformity test. The composition of geological materials is complex, and its reference substances generally have multiple attribute values, and the content of each component is greatly different, so it is usually difficult to test the uniformity of all attribute values. According to the provisions of JJF1646—2017, the characteristic of representative and less homogeneous should be selected for uniformity evaluation. The uncertainty of the untested elements can be evaluated according to the concentration and geochemical properties with reference to the uncertainty introduced by the tested elements. However, the exact calculation method was not specified. An evaluation method that considers both element properties, content and test methods (Table 2) is presented here. The specific calculation method is to multiply the relative uncertainty (Ur ) of the uniformity of the detected element by the standard value μ of the undetected element and take it as the uncertainty component ubb of the undetected element. 　　(3) Evaluation method of stability uncertainty. At present, trend analysis method is generally used to evaluate the stability uncertainty (us ) of geological reference materials, and the calculation formula is us=s(b1 )·t. It can be seen from the formula that the longer the stability monitoring time, the greater the stability uncertainty introduced. The stability uncertainty data of several reference materials were compared and determined to be the main contribution to the total uncertainty, which is inconsistent with the long-term observation of the stability of the geological reference materials. Therefore, this calculation method is not suitable to evaluate the uncertainty introduced into the stability of geological reference material. Meng et al.[42] suggested using the analysis of variance to calculate, and the comparative analysis showed that us was still the main contribution to the total uncertainty. Wang et al.[43] used range method to calculate us, but the application of this method in geological reference materials has yet to be verified. In conclusion, the reasonable evaluation of stability uncertainty of matrix reference materials with more test error sources needs to be studied further. 　　(4) Control limits for relative extended uncertainty. The determination of the property value of geological reference materials usually has certain control requirements for relative extended uncertainty (Urel), but these control limits are rarely introduced in the public information of the reference material. It was not until the specification JJF1646 published in 2017 that Urel was required in principle. Urel is the embodiment of the quality of property value data. Urel control limits in Table 3 are proposed on the basis of the principle requirements of JJF1646—2017 by referring to the control limits in the development of existing reference materials and the analysis of different types of geological reference materials. In the process of development, the developer also needs to comprehensively consider the matrix condition, setting index, element content of the sample and formulate reasonable Urel control limits of uncertainty in combination with the current analysis technology class, to obtain accurate and reasonable property value and uncertainty. [ABSTRACT FROM AUTHOR]

The low-carbon city pilot policy is an important way to promote corporate green innovation, and it is also an inevitable choice to achieve the goals of achieving peak carbon emissions and carbon neutrality. However, existing research on the impact of the low-carbon city pilot policy on green innovation lacks depth, and literature focusing on micro-corporate level is insufficient. Therefore, it is difficult to provide an effective reference for corporate green transformation. Based on the panel data of 936 A-share listed companies in China from 2007 to 2020, this paper took the low-carbon city pilot policy as a quasi-natural experiment. The multistage dynamic difference-in-differences model and difference-in-difference-in-differences model were used to explore the impact of the low-carbon city pilot policy on corporate green innovation and its heterogeneity in terms of enterprise size, property rights, and carbon emission industry. Furthermore, from the perspective of environmental responsibility and talent agglomeration, this paper discussed the transmission mechanism of this policy to promote corporate green innovation and determined the optimal path for the low-carbon city pilot policy to take. The research results showed that: ① The low-carbon city pilot policy effectively promoted corporate green innovation in the pilot areas. Compared with the green utility model patent innovation, the pilot policy had a more significant impact on green invention patent innovation. A series of robustness tests such as PSM-DID and the placebo test found that the conclusion was still valid. ② The impact of the low-carbon city pilot policy on green innovation presented heterogeneity in terms of enterprise size, property rights, and carbon emission industry. This policy had a more significant policy impact on large-scale enterprises, and only had a positive impact on the utility model patent of state-owned enterprises but had a significant positive impact on the green innovation of non-state-owned enterprises to varying degrees. The low-carbon city pilot policy had a significant positive impact on the green innovation of enterprises in high-carbon industries but had a certain inhibitory effect on the green innovation of enterprises in low-carbon industries. ③ The main transmission mechanism of the low-carbon city pilot policy on the promotion of corporate green innovation was that the pilot policy enhanced the awareness of the environmental responsibility of enterprises by strengthening their management of environmental information disclosure, improving the level of their environmental protection investment, providing government support for their environmental protection, and inducing the effect of talent agglomeration by attracting talented people seeking employment and those who graduated from local universities as well as high-tech talents from enterprises. From the perspective of the transmission path effect, environmental responsibility played a greater role, followed by talent agglomeration. Therefore, the government should keep on expanding the scope of the lowcarbon pilot policy, give more financial and policy support to small and medium-sized technological private enterprises and green environmental protection enterprises, promote the shareholding system reform, mergers, and reorganization of state-owned enterprises, and provide sustainable environmental regulation and assistance to high-carbon emission enterprises. They should also continuously enhance enterprises' environmental responsibility awareness and promote the effect of talent agglomeration to improve the level of green innovation. [ABSTRACT FROM AUTHOR]

With the active promotion of the concept of common prosperity, farmland has once again become the focus of attention in political and academic circles, and many scholars have advocated the further visualization of the property value of farmland elements to increase farmers' income. To promote the coordinated development of China's food security and common prosperity strategies, this paper attempts to reveal the dilemma facing farmland capitalization. Theoretically, based on the factor allocation decision logic of full-time and part-time farmers, this paper proposed the dilemma of farmland capitalization between increasing food production and farm household income. We empirically constructed a model to measure farmland capitalization and characterized its degree in 27 provinces in China's mainland from 2004 to 2020. The study also provided empirical support for the theoretical analysis by using a threshold regression model and a mediating effect model based on 790 microsamples from typical provinces. The results found that: ① Farmland capitalization showed a trend of increasing year by year nationwide, with a spatial distribution pattern of spreading from the center to the surrounding areas, and the provinces with a higher degree of farmland capitalization were concentrated in the main grain-producing areas. ② The impact of farmland transfer prices on grain production had structural effects depending on the degree of farmland capitalization: In the moderate capitalization scenario (farmland capitalization≤1.011), farmland price increases promoted the expansion of food crop acreage; in the excessive capitalization scenario (farmland capitalization≥1.154), farmland price increases suppressed food crop acreage. ③ Farmland capitalization helped to meet farmers' psychological expectations on the value of farmland assets, and significantly increased farmers' income by promoting two paths: the outflow of farmland and off-farm employment. ④ Farmland capitalization in China was facing a dilemma between increasing food production and increasing farmers' income, which posed an important potential problem for national food security. The capitalization of farmland can not only improve the problem of insufficient property income in the income structure of farm households, but also promote the non-farm transfer of rural labor, but behind it is the fact that a large amount of farmland is 'nongrain.' In the future, the Chinese government should emphasize the production factor attributes of farmland, use policy tools to guide the rational return of farmland prices, improve the market for productive agricultural services, and prevent the risk of farmland over-capitalization. [ABSTRACT FROM AUTHOR]

In the new era, adjusting the financial power relationship between the central and local governments and broadening the financial revenue channels of local governments are key to overcoming the weaknesses of rural living environment governance and building a long-term investment mechanism. Based on the typical facts of Chinese-style fiscal decentralization, this paper theoretically and systematically interpreted the internal impact logic of fiscal decentralization and official promotion incentives on rural living environment governance. Based on the inter-provincial panel data from 2007 to 2017, this study used the system GMM method to analyze the effects of the decentralization and autonomy of fiscal revenue and expenditure and the promotion incentives on rural living environment governance. The results showed that: ① Government fiscal revenue and expenditure decentralization had a significant positive effect on the centralized treatment of rural household waste and the popularization of sanitary toilets, and the impact on the centralized treatment of rural household waste was more significant. ② The promotion incentives of officials positively affected the centralized treatment of domestic garbage and sewage as well as the effective popularization of sanitary toilets in rural China by influencing the fiscal expenditure preferences of local governments, and all the reasons showed that the effect was greater under fiscal revenue decentralization. ③ In terms of joint influence, the influence coefficients of the interaction term on the centralized treatment of rural household garbage and sewage as well as the popularization of more sanitary toilets were significantly positive with sound robustness, indicating that the joint effect of the two terms had a positive regulating effect on the construction of rural infrastructure and the improvement of living conditions and the environment. In view of this, the paper argues that in the process of pursuing a Chinese path to modernization, it is necessary to further improve the relationship between central and local financial powers, optimize the distribution pattern of central and local financial powers and financial resources, expand the scale and proportion of local tax revenue, increase the investment in people's livelihood in rural living environment, gradually improve the performance evaluation mechanism of government officials, and strengthen the performance evaluation of the development of people's livelihood undertakings. It is also necessary to guide government officials in developing a scientific perspective on political achievements in order to provide an institutional guarantee for the construction of a livable, suitable, and beautiful countryside. [ABSTRACT FROM AUTHOR]

China has entered the stage of high-quality development, and the construction of new-type urbanization is an important approach for the realization of the country's high-quality economic development as well as reaching peak carbon emissions and achieving carbon neutrality. The existing literature has produced a number of fruitful research results on the economic and environmental effects of the transformation of urbanization. However, few studies have tested the effects of the new-type urbanization construction on energy efficiency and their mechanisms from the perspective of exogenous impact. Therefore, in the context of China's actual situation, this paper constructed a theoretical framework of 'technological progress－population agglomeration－urban expansion,' and then deeply explained how the comprehensive pilot policy for new-type urbanization affected energy efficiency. Based on the panel data of 285 cities in China, this paper made an innovative breakthrough from the existing empirical analyses by dividing energy efficiency into total-factor energy efficiency and green total-factor energy efficiency, choosing the comprehensive pilot policy for new-type urbanization as a quasinatural experiment, and using the difference-in-differences method to examine the mechanisms and impact of new-type urbanization on energy efficiency. The results showed that: ① After a series of robustness tests, the impact of the comprehensive pilot policy for newtype urbanization on total-factor energy efficiency and green total-factor energy efficiency was significantly negative, and the effect increased year by year. ② Mechanism analysis showed that new-type urbanization mainly hindered the improvement of energy efficiency by promoting technological progress, boosting population agglomeration, and stimulating urban expansion. ③ According to the analysis of the effect of the regional biased policy, the regionally biased policy leaning toward the central and western regions did not promote the energy-saving effect of new-type urbanization. ④ According to the analysis of the effect of urban agglomeration mode, joining an urban agglomeration helped enhance the effect of the new-type urbanization on energy efficiency. This study provides empirical evidence and policy implications for promoting China's new-type urbanization, avoiding unfavorable factors, and achieving a 'win-win' situation of the high-quality development of new-type urbanization and the improvement of energy efficiency. [ABSTRACT FROM AUTHOR]

Carbon intensity is a measure of the amount of carbon emissions generated by a unit of added value in an economy. However, the existing carbon intensity index ignores the carbon emissions caused by the fixed asset depreciation in the production process, so it is not tenable to use it in the comparative study of carbon intensity between sectors. Based on this, this paper used China's competitive input-output table in 2020 to restore the fixed asset depreciation originally located in the value-added part of the table to the intermediate consumption of the final products of each sector and used the input-output analysis method to calculate the carbon emissions caused by the fixed asset depreciation of each sector, complete carbon emission intensity, and comprehensive effect coefficient. The results showed that: ① We should not ignore the carbon emissions caused by fixed asset depreciation, which accounted for 23.28% of the total carbon emissions of all industrial sectors and 34.44% of the tertiary industry sector. ② The ranking of high-carbon sectors was different based on different carbon intensity indexes and carbon emission indexes. Considering the dual control degree of carbon emission intensity as the main control degree and total carbon emission as the auxiliary control degree, this paper suggests that complete carbon intensity should be used as the assessment index of the whole industry sector in China. ③ The analysis of factors affecting the robustness of the conclusions of this paper showed that the total amount of depreciation of fixed assets remained relatively stable in each period, and that different settings of the fixed asset depreciation rate had little impact on the robustness of the conclusions of this paper. [ABSTRACT FROM AUTHOR]

Behavior related to the overseas market has become an important way for enterprises to actively acquire international resources in the context of the dual circulation development pattern. Based on corporate behavior related to the overseas market, this paper attempts to investigate whether enterprises can obtain the resources needed for green technology innovation and spur their willingness to engage in green technology innovation to break the bottleneck of domestic green technology innovation and construct a voluntary green technology innovation behavior pattern. It is of great significance to build a green technology innovation system under the new development pattern. This paper discussed the mechanism of corporate behavior related to the overseas market on their green technology innovation ability from quality and quantity dimensions by using the data obtained from the A-share listed companies in China's highpolluting industries from 2006 to 2019. The benchmark conclusion showed that corporate behavior related to the overseas market not only improved the quantity and quality of corporate green technology innovation but also improved their willingness to explore the intrinsic value of green technology innovation, which promoted enterprises to choose a substantive green technology innovation mode. The study also found that corporate behavior related to the overseas market had a certain lag in improving the quality of green technology innovation, but the influence was more far-reaching compared with the quantity of green technology innovation. The mechanism analysis showed that corporate green technology innovation increased mainly through the enhancement of environmental responsibility consciousness, while quality improvement occurred through the dual channels of the enhancement of environmental responsibility consciousness and technological level. In addition, the effect of corporate behavior related to the overseas market on green technology innovation was more significant in state-owned enterprises. Further analysis suggests that to maximize the promotion effect of corporate behavior related to the overseas market on green technology innovation, enterprises should make use of the complementary advantages of foreign technology resources to establish overseas affiliates of technology research to enhance the reverse technology spillover effect. Also, enterprises should be based on the domestic market and improve the participation rate of the domestic market to strengthen their sustainable competitiveness. [ABSTRACT FROM AUTHOR]

Through literature retrieval summary, this paper has analyzed the progress of medicine supply policy for rare disease drug in China in the past 5 years and the patterns of medicine supply policy for rare disease drugs implemented by various local governments. The United States and other developed countries have an early start in the definition, regulations and drug development incentives of rare diseases, and also have established a relatively robust system of medicine supply for rare disease. China is gradually establishing medicine supply policy for rare disease drug to promote access to medicines for patients with rare diseases. In order to establish a systematic policy system for rare diseases, this paper proposes that China can further promote the improvement from the aspects of system guarantee, resource guarantee and implementation guarantee to ensure drug accessibility for patients with rare diseases. [ABSTRACT FROM AUTHOR]

(1) Background--The key and difficult point for all Chinese people to achieve common prosperity lies in some remote mountainous areas and forest areas, because these areas are highly overlapping areas of " old areas, ethnic minorities areas, border areas and poor areas" and they are the most unbalanced and inadequate areas of China's development. However, these areas are rich in forest resources. Forests are "reservoirs" "grain depots" "money banks" and "carbon pools". The realization quality of forests as "four repositories" is closely related to the realization degree of common prosperity. Giving full play to the role of forests as "four repositories" can not only promote the modernization of remote mountainous areas and forest areas, shorten the gap between urban and rural areas, but also an important cornerstone for promoting common prosperity. (2) Methods--This paper firstly analyzed the theoretical logic and historical logic of forests as "four repositories" promoting common prosperity by using historical analysis and case analysis, then discussed the practical logic of forests as "four repositories" promoting common prosperity by using case analysis, and finally put forward the realistic paths of forests as "four repositories" promoting common prosperity. (3) Results Forest is a "money bank", which contains its natural attributes, reflecting that forest re sources can be transformed into economic benefits, and it is consistent with the " two mountains" concept of "clear waters and green mountains are as valuable as mountains of gold and silver". Forest is a "reservoir", which contains its spiritual attributes, reflects the balance of forest and water and the symbiotic relationship of forest and water. Forest is a "carbon pool", which contains its social attributes, it is conducive to the moral awakening of social ecological protection, and improving the distribution system based on the principles of fairness and justice. Forest is a "grain depot", which contains its historical attributes, it demonstrates the bottom line thinking of maintaining food security, holding well and holding firmly China's rice bowls, and is of great significance to enhancing the people's sense of gain, happiness and security on the grain issue. (4) Conclusions and Discussions--This paper puts forward the following paths to give full play to the role of forests as " four repositories" to promote common prosperity: First, strive to form a value realization mechanism of forest ecological products with the government as the lead and the market as the main body. We can learn from the advanced experiences such as Costa Rica's horizontal payment for forest ecological services, Finland's biodiversity protection and ecological compensation system based on the voluntary participation of forest farmers and the signed agreements through negotiations, and Zhejiang's " 10,000 yuan per acre mountain" model to enrich the people, so as to give full play to the role of forests as "money banks" to ensure the rich wealth of people in remote mountainous areas and forest areas. Second, give full play to the role of forests as "reservoirs", realize the spatio-temporal regulation of water resources, and promote the realization of forest functions such as purifying water quality, regulating climate and beautifying the environment. Third, vigorously seek food from forests, which will help ease the pressure on arable lands, ensure grain and oil security, and effectively promote the efficiency of forestry and increase the income of forest farmers. Fourth, give full play to the role of forests as "carbon pools" and enhance the capacity of forest carbon sequestration and sinks. It is conducive to giving full play to the role of " carbon sinks" forestry in climate changes in the context of the " double carbon" era, and better achieve the goal of improving the forest governance system and promoting the common prosperity of remote mountainous areas and forest areas. [ABSTRACT FROM AUTHOR]

BACKGROUND: Currently, electrospun nanofibers, which are biomimetic materials of natural extracellular matrix and contain a three-dimensional network of interconnected pores, have been successfully used as scaffolds for various tissue regeneration, but are still faced with the challenge of extending the biomaterials into three-dimensional structures to reproduce the physiological, chemical as well as mechanical properties of the tissue microenvironment. OBJECTIVE: To summarize the process and principles of electrostatic spinning and to explore the applications of the resulting electrospun nanofibers in tissue regeneration of skin, blood vessels, nerves, bone, cartilage and tendons/ligaments. METHODS: With “electrospinning, electrospun nanofibers, electrospun nanofiber scaffolds, tissue regeneration” as the Chinese and English search terms, Google Academic Database, PubMed, and CNKI were searched, and finally 88 articles were included for review. RESULTS AND CONCLUSION: (1) The electrospun nanofibers are a natural fibrous extracellular matrix mimetic material and contain a three-dimensional network of interconnected pores that have been successfully used as scaffolds for a variety of tissue regeneration applications. (2) Several papers have described the great potential of electrospun nanofiber scaffolds applied to the regeneration of skin, blood vessels, nerves, bones, cartilage and tendons/ ligaments, providing a solid theoretical basis for its final application in clinical disease treatment, or for its transformation into practical products to enter the market. (3) However, the current research results are mostly based on cell experimental research results in vitro, and whether it can be finally applied to human body still needs clinical verification. (4) At present, many kinds of electrospun products for various clinical needs have been commercialized in and outside China, indicating that the research field of electrospun nanofiber scaffolds for soft and hard tissue regeneration has great research value and application potential. [ABSTRACT FROM AUTHOR]

The intensive scale feeding of cattle and sheep in China co-exists with the traditional grazing mode. The traditional grazing mode is easily affected by climate, season and other factors, and the unstable forage supply and unbalanced feed nutrition become the restricting factors for the development of the cattle and sheep industry. The use of a total mixed diet can not only solve the problem of nutritional instability of cattle and sheep feed, improve production efficiency, but also make full use of agricultural and industrial by-products, protect the environment, and achieve green, healthy and sustainable development of the cattle and sheep industry. The paper reviews the research progress of the preparation principle and technology of total mixed diet and its effect on the production stage of cattle and sheep, aiming to provide a reference for the use of total mixed diet in the production of cattle and sheep. [ABSTRACT FROM AUTHOR]

The purpose of the paper was to analyze the influence of corn 'price-subsidy separation' policy on the stability of pork supply chain, so as to maintain the stability of pork supply market. Based on the panel data of 19 major corn producing provinces in China from 2012 to 2021, the impact of corn 'price-subsidy separation' policy on the stability of pork supply chain in China was tested by double difference method. The results show that, on the basis of controlling a series of other factors, with the increase of corn price, the implementation of corn 'price-subsidy separation' policy could positively improve the stability of pork supply chain in China, and the improvement effect was about 0.042. Further study showed that the policy of 'price-subsidy separation' of corn has obvious influence on the upstream stability of pork supply chain, and the upstream stability of pork supply chain had increased by 0.106 7% after the implementation of the policy. The study indicates that 'price-subsidy separation' policy of corn can promote the stability of pork supply chain in China, and the effect is stronger in the upstream of pork supply chain. [ABSTRACT FROM AUTHOR]

With the intensive development of animal husbandry, the demand for feed soybean meal increases. In order to promote the development of animal husbandry and ensure the supply and quality safety of feed in China, it is necessary to reduce the proportion of soybean meal and increase the development of protein feed resources and the supply of highquality feed. Cottonseed meal has high protein content, and the vitamin content is similar to that of soybean meal. Compared with soybean meal, cottonseed meal has a wide range of sources and is more affordable. However, cottonseed meal contains gossypol, which limits its application in animal production. Therefore, the dephenolization technology of cottonseed meal, the application of cottonseed meal instead of soybean meal in animal production and matters needing attention are summarized in the paper, which provides a reference for resource utilization of cottonseed meal, reducing livestock and poultry breeding cost and improving animal product quality. [ABSTRACT FROM AUTHOR]

Promoting the United Nations' Sustainable Development Goals (SDGs) is a world consensus and a necessity for China. In the process of achieving a sustainable future, evaluating a country's sustainable development progress, understanding China's position in global sustainable development, and identifying the advantages and challenges of China's sustainable development are of great signif-icance for the world to understand China and for China to optimize its sustainable development system. Based on this, this paper took the Sustainable Development Reports issued by the Sustainable Development Solutions Network from 2015 to 2022 as the main carrier to explore the assessment and progress of global SDGs, and analyzed the effects of China's implementation of SDGs and the gap be-tween China and other countries in the world from the perspective of how China was viewed by the world in order to provide a possible path for improving China's sustainable development and to drive the sustainable development of the world. The results showed that, on a global scale, sustainable development had obvious regional and economic agglomeration characteristics, and the progress in realizing the SDGs was homogeneous to a certain extent. From a global perspective, China's sustainable development progress was relatively sta-ble and ranked at the uppermiddle level of the world. In 2022, China's SDG score was 72.4, ranking 56th among 163 countries. In particular, China made remarkable progress in achieving the ' No Poverty,' ' Quality Education,' and ' Responsible Consumption and Produc-tion' goals, and provided basic experience for the sustainable development of the world. The sustainable development goals of ' Life Be-low Water' and 'Life on Land' were prominent weaknesses in China's sustainable development, and there was a certain gap between China and other countries in the world. Further optimizing the assessment system for sustainable development, clarifying priorities for sustainable development, focusing on key regions and groups, and building global partnerships are inherent requirements for implement-ing the 2030 Agenda for Sustainable Development and building a more inclusive and sustainable development pattern. [ABSTRACT FROM AUTHOR]

Taking the carbon family as an example, this paper introduces the teaching design and practice for incorporating ideological and political education into chemistry of elements. Frontiers of science and technology, materialist dialectics and scientific epistemology, patriotism, ecological civilization thought, China's "double carbon" story in the new era, history of discovery of elements, scientific ethics and morality, etc. were aptly incorporated into the links of content setting and classroom teaching aiming at cultivating students' spirit of the craftsman, scientific thinking, patriotism, ecological civilization thought, exploration spirit, and professional ethics. Simultaneous promotion of "knowledge transfer" and "value guidance" was realized. [ABSTRACT FROM AUTHOR]

The paper is based on the monthly price data of major livestock products in China from January 2002 to July 2022, the UVSVM model was used to investigate the dynamic feedback relationship between random price fluctuations and prices of three types of livestock products: Pork, beef and mutton. The result indicates that the random fluctuations in pork prices have a significant impact on pork prices and change in pork price levels will have a positive impact on the short-term random fluctuation in pork price. The random fluctuations in beef and mutton prices have little impact on their respective price. Changes in the price level of beef and mutton will have a negative impact on the random fluctuations in short-term prices. It is proposed to improve the regulatory mechanism of pork reserves and achieve stable supply and prices in the pork market, policy recommendations for taking multiple measures to stabilize the supply of beef and mutton and promote the stable operation of beef and mutton prices, in order to ensure the supply of livestock product and promote high-quality development of agriculture and rural economy. [ABSTRACT FROM AUTHOR]

Chinese cabbage is the vegetable with the highest yield in China, and treatment procedures produce plenty of waste, while inappropriate treatments, including careless disposal, cause huge resource waste and severe environmental pollution. Chinese cabbage waste enriches nutrients, such as protein, glucosinolates, and minerals, which can be prepared as an excellent feed. However, the characteristics, including unclear nutrient composition, seasonal production and perishable nature, limit the effective development of Chinese cabbage waste forage utilization. Therefore, this paper reviewed the industrial situation of Chinese cabbage, the nutritional characteristics, forage technology and feeding effects of Chinese cabbage waste, and suggested the prospects of the future research tendency of forage utilization, which aimed to provide theoretical and technological references for forage utilization of Chinese cabbage waste. [ABSTRACT FROM AUTHOR]

The South Pacific Regional Fisheries Management Organization （SPRFMO） plays a vital role in managing fishery resources and protecting marine ecosystems in the South Pacific Ocean. Compared with other regional fisheries management organizations （RFMOs）, SPRFMO is unique for its management philosophy and management measures. As a member of SPRFMO, China has complied with the established measures in the exploitation and conservation of fishery resources and has steadily continued to enhauce its compliance awareness and compliance ability. However, there is still room for China to further improve its active participation in rule-making.This paper discusses how China, with substantial SPRFMO compliance experiences and in good knowledge of SPRFMO management philosophy and management measures,takes advantage of its strengths in squid production and research to improve its involvement in making rules of procedures and the conservation and management measures, thus to facilitate the conservation and management of resources and sustainable development of fisheries in the South Pacific Ocean with Chinese solution to fisheries governance while safeguarding the rights and interests of China′s fisheries. [ABSTRACT FROM AUTHOR]