Comparison of Particle Size Distributions Determined by Pipette Method and Scanning Electron Microscopy for Typical Soils in Water Erosion Region of China [PDF]
, 2023 [Objective] The particle size distributions (PSD) of different soils measured by scanning electron microscopy (SEM) and by the pipette method (PM) in the water erosion region of China was compared in order to provide a reference for the determination of ...
Bai Xue +4 more
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Effects of Disturbance Modes on Vegetation and Soil in Typical Grassland Area [PDF]
, 2023 [Objective] The effect of different disturbance modes on soil physical and chemical properties and vegetation characteristics of typical grassland areas in Inner Mongolia were analyzed in order to provide a scientific basis for restoring the ecological ...
Cha Na +6 more
core +1 more source
Spatiotemporal Variations and Topographic Differentiation of Fractional Vegetation Cover in Changbai Mountain [PDF]
, 2023 [Objective] The dynamic changes of vegetation and its response relationship with topography in Changbai Mountain were explored in order to provide scientific support for ecological environmental protection and management in this mountainous area ...
Li Wen, Shi Song, Yang Ziyi, Yu Ran
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Ecological Value of Multi-scale Cultivated Land Protection and Compensation Standards in Watersheds [PDF]
, 2023 [Objective] The ecological value of cultivated land and compensation standards at multiple scales in a watershed was measured and analyzed in order to provide scientific reference for improving the compensation mechanism for cultivated land protection ...
Gao Jia, Wang Panpan
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Spatiotemporal Differentiation and Driving Factors of Green Efficiency of Agricultural Water Use in China [PDF]
, 2023 [Objective] The spatiotemporal differentiation and evolution characteristics of the green efficiency of agricultural water use in China and the current status of Chinese agricultural development were analyzed in order to further promote high-quality ...
Cao Jian, Liu Shixiang
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Shuitu Baochi Xuebao, 2023 东北黑土带是我国重要的商品粮生产基地,土壤质量退化、水土流失等问题直接影响生态与粮食供给安全,为明晰东北黑土带土地利用变化特征及评价生态敏感性,以2000年、2005年、2010年、2015年、2020年东北黑土带5期土地利用数据为基础,采用转移矩阵、地理探测器、综合生态风险评价等方法,研究景观格局及生态风险变化趋势。结果表明:(1)2000-2020年,研究区未利用地面积增加1 035.7km2,水域面积减少975.8 km2,土地利用变化最明显,耕地是阶段性变化较为剧烈的土地利用方式;(2 ...
晋一然 +4 more
doaj
Temporal and Spatial Patterns of Wind Erosion Climate Indices and Their Responses to Atmospheric and Oceanic Circulation Patterns in the Chinese Mollisol Region over the Past 61 Years [PDF]
[Objective] A study on the spatial and temporal patterns of wind erosion climate indices and their responses to atmospheric and oceanic circulation patterns in the Chinese Mollisol region is of great significance for the early warning and prevention of ...
FU Jinxia +6 more
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Shuitu Baochi Xuebao, 2021 量化东北黑土区多种外营力作用的坡面复合土壤侵蚀过程，将为坡面水保措施的精确布置提供重要科学依据。基于野外模拟试验，分析了东北典型薄层黑土区（宾县）、中层黑土区（海伦市）和厚层黑土区（克山县）多营力叠加作用的坡面水蚀特征。野外模拟降雨的试验处理包括仅水蚀的试验处理（I）、冻融+水力叠加作用的试验处理（Ⅱ）和冻融+风力+水力叠加作用的试验处理（Ⅲ）。结果表明：与仅有水蚀作用的试验处理相比，冻融作用使典型薄层、中层和厚层黑土厚度区的坡面径流深度分别减小29.4%，39.3%，32.1 ...
何煦, 桑琦明, 郑粉莉, 王一菲
doaj
Shuitu Baochi Xuebao, 2022 东北黑土区是我国重要的商品粮生产基地,强烈水土流失导致的黑土厚度下降及土壤质量退化,直接威胁国家粮食安全。系统分析黑土区土壤侵蚀研究成果,对阻控黑土退化、维持土地生产力、保障国家粮食安全具有重要意义,论述了黑土区土壤侵蚀环境与侵蚀环境效应、土壤侵蚀过程与机理、土壤侵蚀时空变化和未来研究展望。多营力复合、缓坡长坡是黑土区独特的侵蚀环境,黑土厚度下降与坡耕地土壤质量退化是该区最典型的侵蚀环境效应。细沟间、细沟、浅沟、切沟及冻融侵蚀发育的动力机制与主控因素差异明显 ...
张光辉, 杨扬, 刘瑛娜, 王志强
doaj
Phosphorus adsorption and desorption characteristics and its response to soil properties of black soil under long-term different fertilization [PDF]
, 2019 editorial reviewedObjective: Fertilizer is generally added to agricultural soil to meet the needs of crop production, but long-term over fertilization changes soil phosphorus (P) pool and soil properties.
Gao, HongJun +7 more
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