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Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective The increase in atmospheric CO2 and the associated global warming is expected to affect plant growth and development. This paper investigates the spatiotemporal variation in vegetation phenological traits and peak NDVI of plants in Hetao Irrigation District in Inner Mongolia. [Method] The analysis was based on MOD13Q1 data from 2001 to 2021. The impact of climatic factors on spatiotemporal variation in the start of season SOS, the end of season (EOS), the length of season (LOS), the peak of season (POS), and the normalized difference vegetation index (NDVI) of the vegetations in the region was analyzed using the two-logistic and four-parameter model. [Result] The SOS started from the end of May to the middle of June, and ended from the middle of September to the beginning of October. The annual peak LOS and POS ranged from 95 to 116 days, and from 200 to 220 days, respectively. The annual peak NDVI ranged from 0.5-0.7. Climate change delayed the onset of SOS, reduced LOS, and elevated peak NDVI. Additionally, the delayed SOS contributed to the decrease in LOS. The changes in EOS and POS with climate were consistent. SOS, EOS and POS were negatively correlated to temperature and positively correlated to precipitation. The peak NDVI was positively correlated to temperature and precipitation. [Conclusion] The vegetation phenology and peak NDVI in the Hetao Irrigation District were spatially heterogeneous, and the impact of climatic factors on them also varied. [ABSTRACT FROM AUTHOR]

[Objective] A pre-planting border irrigation in spring coupled with a drip irrigation in summer during crops growth season is an irrigation technique to reduce soil salinity and safeguard crops growth in the salt-affected soils in the Hetao Irrigation District in Inner Mongolia. This paper investigates the impact of different combinations of irrigation amounts in the dual irrigations on changes in soil water and salt, as well as the growth of sunflower. [Method] The field experiment compared two spring (S) irrigation amounts: 95 mm and 135 mm, and three summer (W) irrigation amounts: 68, 100 mm and 135 mm. In each treatment, we measured the spatiotemporal changes in soil water and salt, as well as crop growth characteristics. [Result] ① The soil water content in the S135W135 treatment was the highest among all treatments during the experimental period, with the average soil water content and saturation being 17.10% and 75.53%, respectively. The coefficient of variation of soil water content in the S95W135 treatment was 22.40%, the lowest among all treatments. ② Depending on the summer irrigation amount, the desalination rate of the 0-80 cm soil layer under S135 and S95 varied from 32.64% to 50.50% and 21.8% to 38.87%, respectively. Although the spring irrigation amounts did not significantly affect immediate post-irrigation salt content, the S135W100 and S95W135 combinations showed deeper leaching depths and higher desalination rates (40.77% and 33.37%, respectively) than other treatments. ③ Aboveground dry matter production was significantly higher in the S95W135 and S135W100 combinations than in other combinations, surpassing the S135W135 combination by 10.55% and 9.94%, respectively. The S135W100 combination achieved the highest water use efficiency at 21.59%, an increase of 13.03% compared to S135W135. [Conclusion] Reducing spring irrigation by 30% to 95 mm combined with a summer drip irrigation of 135 mm is the most efficient irrigation scheme for sunflower cultivation in the salt-affected soils in the Hetao Irrigation District. [ABSTRACT FROM AUTHOR]

The winter cold stress of dairy cows has become one of the important problems affecting the healthy development of animal husbandry. Cold stress will lead to the decrease of feed intake, milk yield and reproductive performance of dairy cows, and seriously harm the economic benefits of dairy farmers. Inner Mongolia is located in a cold region, where animals are in a cold environment for a long time, and the impact of cold stress is more common. In order to more specifically understand the effects of cold stress on the production performance of dairy cows, the paper reviews the effects of cold stress on the behavior, milk yield, neuroendocrine, biochemical indexes, immune, antioxidant function, intestinal flora and other aspects of dairy cows, and summarizes the effective prevention and control measures to prevent cold stress of dairy cows, to provide reference for further research on the prevention and relief of cold stress in dairy cows. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agricultural Resources & Environment / Nongye Ziyuan yu Huanjing Xuebao is the property of Journal of Agricultural Resources & Environment Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Roadway mine pressure monitoring is one of the important means to ensure the safe and efficient mining of coal mines. However, the traditional monitoring methods have the disadvantages including lack of systematim, low accuracy, poor reliability, and difficulty in networking. In this paper, by using the grating sensor as a monitoring method, a roadway mine pressure grating monitoring system including roof separation, bolt stress, surrounding rock stress and bolt load monitoring was systematically designed and develop, to solve the shortcomings of current monitoring methods. Firstly, taking the 81303 return airway of a coal mine in Inner Mongolia as the research object, the stress distribution law of the two coal pillars was clarified by numerical simulation, and the optimal measuring point layout scheme of the roadway was determined. Secondly, the overall framwork of the roadway mine pressure grating monitoring system was built, and the design and research of the system hardware configuration and monitoring software were carried out to realize the real-time online monitoring and data processing of the roadway mine pressure. In addition, the industrial application test shows that the mine pressure law obtained by the system is generally consistent with those from the traditional method, and the relative error of the monitoring parameters is up to 1.16%, which verifies the effectiveness and adaptability of the mine pressure grating monitoring system. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Tibetan Buddhist architecture in the Ordos area has not received sufficient attention and in-depth research because of its early integrated development with the Tumed area. Under the framework of the overall study of Tibetan Buddhism in the western part of Inner Mongolia, and through historical analysis and comparative studies, this paper studies the architecture of Tibetan Buddhist temples in the Ordos area of the Ming and Qing Dynasties, explores the development of Tibetan Buddhist architecture in this region, as well as its association with similar buildings in the surrounding area. The research shows that the development of Tibetan Buddhist architecture in the Ordos area has gone through three historical stages, and the architectural forms of the first stage to the second one show a trend of integrated development with the Tumed area, but still show distinctive regional characteristics in terms of the layout of architectural space, column grid arrangement and structural system; that of the third stage gradually breaks away from the influence of the Tumed area with a diversified architectural form based on a mixture of Tibetan and Han-Tibetan architecture. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Architectural Journal / Jian Zhu Xue Bao is the property of Architectural Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] Water flow and solute transport in soil is important not only for plant acquisition of resources from soil but also for soil and water environment. In terrestrial ecosystems, they are impacted by numerous factors. The objective of this paper is to investigate the effects of drip irrigation amount on spatiotemporal change in water and nitrogen in Hetao Irrigation District, Inner Mongolia. [Method] A field experiment was conducted to measure the movement of water, nitrate and ammonium in soils, with the irrigation amount controlled at 6 mm (D1) or 60 mm (D2). The measured data was used to calibrate the HYDRUS-2D model, and the calibrated model was then used to elucidate how increasing the irrigation amount to 120 mm would affect water and nitrogen movement. [Result] Irrigation increased soil water content in all growth stages. Following irrigation and fertilization, ammonium and nitrate contents both increased rapidly and then decreased. On average, ammonium and nitrate in the 0~10 cm soil layer decreased by 60.0%~62.0% and 40.0%~46.7%, respectively, after the D1 and D2 irrigations, with the decreasing rate varying with growing stage. Compared to D2, D1 increased soil water content at jointing, heading and filling stage by 5.9%, 8.0% and 6.7%, respectively. Soil ammonium and nitrate both decreased along the soil depth. Nitrate accumulation decreased gradually when the crop grew from jointing stage to filling stage. The simulated soil water content and nitrogen agreed well with the measured data. [Conclusion] Experimental data and simulated results showed that irrigating the maize by 120 mm of water can effectively reduce accumulation of nitrate in the 0~60 cm soil layer, and that increasing irrigation frequencies can further curtail nitration accumulation in the 60~100 cm soil layer. These results provide guidance for improving irrigation and fertigation for maize production in Hetao Irrigation District. [ABSTRACT FROM AUTHOR]

[Objective] Alfalfa is sensitive to water stress at branching stage, but how a simultaneous salinity stress affects this sensitivity is not well understood. The objective of this paper is to address this issue. [Method] Pot experiments were conducted in 2018-2019 at the Shengmu High-tech Economic Park, in Dengkou County, Inner Mongolia. It consisted of three water treatments with the soil water content kept at 55%~70% (W1), 75%~85% (W2), and 85%~100% (W3) of the field capacity, respectively. Each water treatment had four salinity stresses with the soil salt content set at 1.0 (S0), 1.5 (S1), 3.0 (S2) and 4.5(S3) g/kg, respectively. In each treatment, we measured osmotic substances, antioxidant enzymatic activities, above- and below-ground biomass at early flowering stage. [Result] Water and salinity stresses reduced water consumption and aboveground biomass more considerably when they worked collectively than working separately. When the water stress was minor, however, imposing a slight salinity stress with soil salt content ≤3 g/kg can increase the contents of proline and Na+, boosted peroxidase (POD) activity, and reduced superoxide dismutase (SOD). This alleviated oxidative damage of the water stress, thereby promoting crop growth. Compared with S0+W1, S2+W1 increased the contents of proline and Na+, and boosted POD activity, by 74.28%, 17.28% and 34.60%, respectively, while reducing SOD activity by 9.87%. These led to an increase in water consumption and aboveground biomass by 6.48% and 2.17%, respectively. [Conclusion] When water stress is not severe, imposing a slight salinity stress can improve the tolerance of alfalfa to water and salinity stress at branching stage. For all treatments we studied, keeping soil salt content in the range of 2~3 g/kg and soil water content in the range of 70%~85% of the field water capacity was optimal to improve resistance of the crop to both salinity and water stresses. [ABSTRACT FROM AUTHOR]

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ecological Science is the property of Ecological Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Agrometeorology is the property of Editorial Board of Chinese Journal of Agrometeorology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Architectural Journal / Jian Zhu Xue Bao is the property of Architectural Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Architectural Journal / Jian Zhu Xue Bao is the property of Architectural Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Mine Automation is the property of Industry & Mine Automation Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arid Zone Research / Ganhanqu Yanjiu is the property of Arid Zone Research Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to expand the application of remote sensing prospecting technology in gold prospecting, this paper takes the Zhuanshanzi area in Inner Mongolia as an example, and selects Landsat 8 OLI remote sensing data. On the basis of image data preprocessing, the regional tectonic information is enhanced by the fusion of B7B5B3 band. The principal component analysis is used to extract the alteration anomaly information through threshold segmentation. Based on the geological characteristics and remote sensing interpretation information of the region and Zhuanshanzi Gold Deposit, the prospecting indicator of gold deposits in Zhuanshanzi area is established, and 3 prospect areas for prospecting prediction are delineated. The field verification shows that there is gold mineralization in the prospect area. It is believed that the linear and ring structure and remote sensing anomaly information extraction based on OLI remote sensing images can be used as auxiliary means for gold prospecting prediction. [ABSTRACT FROM AUTHOR]

Objective Global warming has resulted in change in precipitation across many regions around the world. In this paper, we analyze the stable isotopes in precipitation in Ordos of Inner Mongolia, and then used them to track the origin of the water vapor in the irrigation areas proximal to the Yellow River in the region. Method Rainfalls were sampled from June to September in 2020, and stable hydrogen and oxygen isotopes in them were measured. Their correlation with factors including air temperature and daily precipitation was analyzed, from which we established the downline equations. The origin of the water vapor was tracked based on the variation of deuterium surplus value; reliability of the results was determined by the HYSPLIT air mass trajectory model Result The isotopes in the sampled precipitation during the experimental period was significantly lower than that in other months, showing their significant correlation with rainfall with p=0.01. The downline equation was D=7.1318O-1.67, affected by evaporation greatly. Water vapor in June was affected by both the westerly belt and the polar air mass, accompanied by water vapor coming from the southeast coastal region. The water vapor in July and August was similar, coming from northwestern China. Water vapor in September was affected by the water vapor in the westerly belt, the polar air mass and local evapotranspiration.Conclusion Precipitation is the main factor determining its isotope content and origin. The HYSPLIT simulation and dynamic-change analysis of the deuterium surplus value showed that the water vapor in the westerly zone is the origin of the water vapor seen in the studied area. [ABSTRACT FROM AUTHOR]

Inner Mongolia Pacific Mining Co., Ltd. uses a heap leaching process for gold extraction. The large area of ore heap leaching and high sodium cyanide consumption result in high production costs. To further reduce costs and increase efficiency, the company has optimized the process and implemented the effective area dripping method. This paper introduces in detail the application conditions of the effective area dripping method in heap leaching process and the control of various indexes. The successful application of the method effectively reduces the dosage of reagents, saving 55.14 million yuan in reagent costs with significant results. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

(1) Background--In 2021, the forest chief system was fully implemented nationwide. Under this background, how to embed the forest-chief system into the forest resources management system in the state-owned forest areas and fully realize the comprehensive efficiency of forest supervision and protection policies has become an important issue in the forest areas at present. (2) Methods--Based on the field investigation of some typical forestry enterprises in the key state-owned forest areas, this paper systematically analyzed the forest resources management practice after the reform in the key state-owned forest areas at the present stage, summarized the new challenges faced by the forest resources management mechanism after the implementation of the forest chief system, and on this basis, put forward policy suggestions to help the forest chief system to be embedded in the forest resources management system in the key state-owned forest areas. (3) Results--First, the forest chief system was carried out in the key state-owned forest areas, and the state-owned forest industry enterprises were incorporated into the local forest chief system through the organization of personnel. Second, the managers in different state-owned forest industry enterprises served as forest chiefs in different forms. Among them, the enterprise managers of China Longjiang Forest Industry Group Co., Ltd., Yichun Forest Industry Group and Daxing' anling Forestry Group participated in the forest chief system by serving as deputy forest chief of their respective counties (cities or districts). The managers of Jilin Forest Industry Group Co., Ltd.and Changbai Mountain Forest Industry Group served as the general forest chief of their respective forestry bureaus in accordance with the county-level forest chief system. As one of the six major areas of responsibility under the forest chief system in Inner Mongolia Autonomous Region, Inner Mongolia Forest Industry Group appointed deputy forest chief to manage forest resources. (4) Conclusions and Discussions--The implementation of forest chief system in the key state-owned forest areas faces a series of challenges. First, in the process of realizing the policy goal of forest chief system in the key state-owned forest areas, the forest resources management in the forest areas needs to be systematically integrated in the goal setting. Second, under the background of the overall implementation of forest chief system, the forest resources management in the key state-owned forest areas has a pattern of "dual-track and parallel". Third, the coordination mechanism of forest resources management under the forest chief system in the key state-owned forest areas is not perfect, including the government-enterprises coordination mechanism and the social participation mechanism. Based on the above analysis, the following policy suggestions are put forward. First, promote the integration of forest resources management objectives based on the reality of the key state-owned forest areas. Second, develop a list of forest chief powers to clarify the boundaries of responsibilities and powers of forest resources management under the forest chief system. Third, accelerate the establishment of the working mechanism of forest resources management under the forest chief system. In short, when promoting the forest resources management under the forest chief system in the key state-owned forest areas, the appeals of the central government, local governments, forest industry enterprises, forest residents and other parties must be comprehensively considered, the work objectives of the forest chief system must be clearly defined, the work content of the forest chief system must be enriched, and the objectives of integrating ecological benefits, social benefits and economic benefits must be formulated. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geology & Resources is the property of Geology & Resources Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geology & Resources is the property of Geology & Resources Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study aimed to deal with the systematic classification of a genus of Crabronidae Belomicrus A.Costa.,from Inner Mongolia,China.【Method】Based on extensive collection of specimens and refer to the existed literature,using the methods of comparative morphology,the systematics of a genus of Belomicrus from Inner Mongolia,China,were described in this paper.【Result】This paper dealed with the systematics of two new record species,Belomicrus kaszabi Tsuneki.,Belomicrus shatalkini Antropov.,and a genus of Belomicrus,were described in this paper.A key of the species of the Belomicrus from China was provided.The type specimen of the new species was deposited in the Insect Collections of Yunnan Agricultural University.【Conclusion】The new record genus of Belomicrus are all distributed in Inner Mongoliaarea of our country,and it has not been found in other areas.It needs to be studied in further. [ABSTRACT FROM AUTHOR]

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The rapid acquisition of soil water content (SWC) in field crop root zone is significant for drought supervision and precision irrigation. The UAV multispectral remote sensing system has the advantages of obtaining high spatial-temporal resolution of crop phenotype data, and has a wide application prospect in soil moisture monitoring. In order to obtain SWC accurately and timely at a farm scale, in this paper, the field maize with different water treatments is taken as the research object, and the multispectral remote sensing monitoring of summer maize is carried out by using the UAV remote sensing platform, and the soil water content of different soil depth in maize root zone is collected synchronously. Based on the UAV multispectral remote sensing image data sets of jointing stage, tasseling-silking stage and milky-maturity stage of summer maize in 2018, the soil background is removed by support vector machine classification, the spectral reflection of maize canopy is extracted, and the 10 vegetation indices are calculated, then the sensitivity analysis of soil water content in different depth is carried out by using full subset screening method for different wave bands and vegetation indices, and the soil water content in different depth is analyzed respectively, ridge regression and extreme learning machine are used to construct quantitative estimation models of soil water content at 0-20, 20-45 and 45-60 cm soil depth after full subset selection. The test area is located in Zhaojun Town, Dalate Banner, Ordos, Inner Mongolia, China(40°26'0.29" N, 109°36'25.99" E, elevation 1 010 m). The sowing time of maize is on May 11, 2018, the emergence time is on May 18, and the harvest time is on September 8, 2018. The total growth period is 114 days. The UAV multispectral remote sensing images and ground data collection dates are July 8, July 12, July 17, July 21, July 26, August 2, August 28 and September 7, 2018. It is collected once a day and tested 8 times in the whole growth period. July 8-21 is the jointing stage, July 26-August 2 is the tasseling-silking stage, August 28-september 7 is the milk-maturity stage. The flight altitude of the UAV is 70 m, and the flight time is 11:00-13:00 local time (11:44-13:44 Beijing time). Firstly, the UAV multispectral canopy images of field maize with 5 different irrigation treatments (TRTs) are acquired through the six-rotor UAV equipped with a RedEdge multispectral camera ( MicaSense, USA), and the multispectral images of diffuse reflector (reflectivity 58%, size 3×3 m) are collected at the same height to perform radiometric correction in the meantime, and then the spectral reflectances of the field maize are acquired. Secondly, the support vector machine (SVM) is used to eliminate the multispectral image of soil background in ENVI and ArcGIS software, then the maize canopy spectral reflectance is extracted and 10 vegetation indices (VIs), such as Normalized Difference Vegetation Index (NDVI), Normalized Green Difference Vegetation Index (GNDVI) and Transformed Chlorophyll Absorption In Reflectance Index(TCARI), etc, are calculated. Finally, the full subset selection method based on Bayesian Information Criterion (BIC) is used to analyze the sensitivity of SWC at different depths for different spectra bands and vegetation indices in R3.5.1 software, and then Ridge Regression (RR) as well as Extreme Learning Machine (ELM) are used to construct a quantitative estimation model of SWC at soil depths of 0-20, 20-45 and 45-60 cm at different growth stages, respectively. The results show that the full subset selection method based on BIC can effectively select the optimal spectral subset, and the selected variables generally pass the significance test and the independent variables number is small; the effects of the ELM model outperformed the RR model almost under all the same conditions; the optimal monitoring soil depth of maize at jointing stage, tasseling-silking stage is 0-20 cm, and the optimal monitoring soil depth of milk-maturity stage is 20-45 cm; the ELM inversion model at 20-45 cm soil depth at milk-maturity stage has the best effect, the decision coefficients of modeling set and verification set are 0.825 and 0.750, respectively, the root mean square error are 1.00% and 1.32%, respectively, and the normalized root mean square error are 10.85% and 13.55%, respectively. The combination of full subset selection method and machine learning can improve the inversion accuracy and robustness of SWC. This study provides a new way for rapid and accurate monitoring of SWC in farmland and precise irrigation. [ABSTRACT FROM AUTHOR]

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⑴ Background——After 20 years of the implementation of the natural forests protection project and the reform of separating government functions from enterprise management, the regional positioning and social economic system of the state-owned forest regions in Northeast China have undergone profound changes. But there are still some key problems and challenges in the future reform of the state-owned forest regions in Northeast China. ⑵ Methods——According to the data obtained by the research group during the field survey of forest industry enterprises in Inner Mongolia in 2021,and the micro-survey data of forestry workers' families obtained from the “Monitoring of People's Livelihood in Key State-owned Forest Regions” survey project (2012-2021) jointly carried out by National Forestry and Grassland Administration of China and Northeast Forestry University, this paper summarizes the reform achievements and realistic tasks of the state-owned forest regions in Northeast China. ⑶ Results——First, the state-owned forest industry enterprises are the main bodies to undertake the ecological services purchased by the government, and are engaged in the protection, cultivation and restoration of natural forests. It reflects their “public welfare” attribute as the public welfare state-owned enterprises and achieves the government's goal of pursuing ecological benefits. Second, the state-owned forest industry enterprises develop forest carbon sinks, forest biomass energy, forest food with ecological identification and other emerging green industries, which promote the realization of the value of ecological products. It reflects their “profit-driven” attribute as the public welfare state-owned enterprises and achieves the enterprises' goal of pursuing economic benefits. Third, the state-owned forest industry enterprises have improved the well-being of the forestry communities by providing stable employments and income channels for the workers. It reflects their “social responsibility” attribute as the public welfare state-owned enterprises and achieves the state-owned forest regions' goal of pursuing social benefits. In the new historical period, the key of the state-owned forest regions in Northeast China to accomplish the above tasks is to transform from forest dependence to the realization of ecological products value. The following six key problems needed to be solved to accomplish the above realistic tasks: the organizational structures and the management ideas is not adaptable, the motivation mechanisms and the industrial layouts is not clear, the reform of property rights and the use of forest lands is not flexible, the surplus workers and the new positions is not matched, the forests economy and the people's affluence and the enterprises' development is not unified, the protection of resources and the improvement of well-beings isn't coordinated. ⑷ Suggestion——First, each forest industry group should carry out the withdrawal and merge of the state-owned forest industry enterprises according to its actual situation, replace forest farms with ecological management stations in the state-owned forest industry enterprises, and establish a new type of community and a new community governance system in the state-owned forest regions. Second, the existing state-owned forest industry enterprises continue to be classified, some enterprises provide ecological services and ecological products, the other enterprises participate in the market competition to realize the marketization of the value of ecological products. Third, establish a sustainable utilization mechanism of the state-owned forest lands that adapts to different development stages, including woodland supply mechanism, woodland utilization mechanism and income distribution mechanism. Fourth, formulate relevant policies for talented persons oriented to the modern management systems. Fifth, adopt and promote the “company +” mode to develop the forests economy, contract the use rights of the forest lands to the companies, so that the workers can obtain benefits through the way of “company +”.Sixth, sign long-term contracts with relatively poor groups to integrate the protection and restoration of natural forests with the management of relative poverty. [ABSTRACT FROM AUTHOR]

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