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Copyright of Bulletin of Soil & Water Conservation is the property of Bulletin of Soil & Water Conservation 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.)

This article analyzes the basic composition and spatial distribution pattern of honey plant resources in the Ili River Valley region through on-site investigation. It proposes the rational utilization of honey plant resources to improve the economic income of farmers and herds- men, and create a unique industrial economic model in Ili, Xinjiang. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Pharmaceutical Practice & Service is the property of Journal of Pharmaceutical Practice 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 Journal of Mechanical Strength / Jixie Qiangdu is the property of Zhengzhou Research Institute of Mechanical 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 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.)

Based on the bibliometrics analysis, this paper firstly identifies that the research focus of humic acid-based material immobilization field is on immobilization remediation effect and remediation mechanism.Based on the two research focuses identified, the heavy metals in soil were classified into those in the form of cations（e.g.Cd, Pb, Hg, etc.) and those in the form of oxygen anions（e.g.As and Cr),and the immobilization effects and immobilization mechanisms of humic acid and humic acid-based materials on soil heavy metals were systematically reviewed.Humic acid and humic acid-based materials have highly effective to immobilize soil heavy metals, and their immobilization mechanisms mainly include complexation, ion exchange, electrostatic interaction, redox and co-precipitation with introduced modified materials.This review further points out the shortcomings of humic acid-based materials in immobilization remediation technology in terms of practical applications and provides an outlook on future research directions, in order to provide scientific references for in situ immobilization remediation of heavy metal contaminated soils. [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 Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics 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 Shandong Medical Journal is the property of Shandong Medical Health Newspapers 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.)

To reveal the litter water-holding capacity of typical forest in Mopan mountain in central Yunnan Plateau, in this study, the litters of five typical forest types, namely Pinus armandii (PA), Pinus yunnanensis (PY), Quercus semecarpifolia (QS), Keteleeria evelyniana (KE), and evergreen broad-leaved (EB) forest were selected as research objects. The water-holding capacity of different forest litters were analyzed by the field investigation and indoor soaking experiment. The results showed that, (1)the total biomass of five typical forests litter were ranged from 26. 46 t/ hm2 to 69. 83 t/ hm², with the largest biomass in EB; and the biomass of different decomposition layers from large to small showed: DL, SL, and UL. (2) The average maximum water-holding rate (395. 94%, 370. 89%) and effective water storage rate (275. 91%, 266. 90%) of EB and KE were significantly lower than those of other forest, and the maximum water-holding capacity (24. 82 t/ hm², 23. 33 t/ hm²)and effective storage capacity (17. 04 t/ hm², 17. 08 t/ hm²) of EB and PY were higher than those of other forest. The maximum water holding capacity and effective storage capacity of litter layer of five forest increased with the increasing of decomposition degree in different decomposition layers. (3)The power function relation were found between water loss rate and air-drying time in different forest litters, and the lowest water loss rate and the best water-holding capacity were found in EB among five forests. [ABSTRACT FROM AUTHOR]

Vegetation coverage is an important indicator to reflect the ecological environment status of the lower Yellow River floodplain and its changes mirror natural evolution and the effect of human activities on the ecological environment. The county-level administrative area involved in the wide beach area of the lower Yellow River was used as the research area, and the seven periods of Landsat in 1987, 1994, 1998, 2003, 2008, 2013 and 2017 were used as the remote sensing data source. It used the pixel dichotomy method based on the NDVI index to obtain vegetation coverage and classification. It used the methods of univariate linear trend analysis, transfer matrix method, center of gravity transfer model and correlation analysis to analyze the spatial and temporal changes of vegetation coverage in the study area and the influencing factors. The results show that the overall vegetation coverage in the broad beach area of the lower Yellow River and along the area has shown an overall improvement trend in the past 30 years. The gap between the vegetation coverage in the beach area and the vegetation coverage in the coastal administrative areas are gradually decreased after 2003, and it achieves an overtake in 2017. The annual change of vegetation coverage presents an obvious “bimodal” characteristic. The channel contraction and the development of urbanization have an important impact on the inter-annual changes in vegetation coverage. [ABSTRACT FROM AUTHOR]

In order to analyze the spatial-temporal variation along the wide floodplain of the Lower Yellow River, using Landsat time-series data, the temporal and spatial changes of grass wetland habitats along the wide floodplain of the lower Yellow River of 2000 and 2015 were interpreted by utilizing the modification of normalized difference water index method. The disturbing factors of grass wetland habitats were analyzed in conjunction with the activities of water and sediment along the Yellow River channel. The results show that from 2000 to 2015, the habitat area of grass wetland along the beach area has been decreased and grass wetland habitats tend to migrate downstream. At present, the upstream runoff is concentrated, and the peak value of the corresponding hydro logical pulse is as high as nearly 3 meters, which is not conducive to the stable succession of wetland habitat vegetation along the beach area. In addition, human activities such as agricultural cultivation and sand digging along the beach area also seriously affect the stable development of grass wetland habitats. Based on the analysis of the water and sediment activities along the beach area, the total area of grassland wetland habitats along the Yellow River floodplain area is 247.41 km², accounting for only 9.01% of the total area of the wide beach area. [ABSTRACT FROM AUTHOR]

Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities 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.)