Analysis of Soil Erosion Intensity Change Trajectories and Their Driving Factors in Yunnan Province Based on An Improved Stability Mapping Method [PDF]
[Objective] To elucidate the change trajectories of soil erosion intensity in Yunnan Province from 1990 to 2022, and analyze the types of changes and their driving factors, in order to provide a scientific foundation for effective soil erosion control ...
HUANG Bangmei +4 more
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Shuitu Baochi Xuebao, 2021 准确评估区域土壤侵蚀和养分流失空间分布特征，是开展区域水土保持规划和生态治理的基础。基于GIS空间分析技术和RUSLE模型，对云南省土壤侵蚀和养分流失特征进行定量化分析。结果表明：云南省土壤侵蚀面积为1 835.91×104 hm2，占总面积的48.07%，平均侵蚀模数为15.65 t/（hm2·a），土壤侵蚀以微度侵蚀、轻度侵蚀为主，但极强烈侵蚀、剧烈侵蚀是区域侵蚀产沙的主要来源。滇西南区土壤侵蚀强度较大，而滇西北区土壤侵蚀强度较小。区域土壤侵蚀主要发生在夏季，旱地是区域侵蚀产沙的主要策源地 ...
陈正发 +5 more
doaj
Distribution Characteristics and Coupling Relationship Between Soil Erosion and Hydrologic and Sediment Connectivity in Changchong River Basin [PDF]
[Objective] To clarify the distribution characteristics and coupling relationship between soil erosion and hydrologic and sediment connectivity in Changchong River Basin, and to provide basis for soil erosion control and soil erosion prevention in this ...
LI Jianing +4 more
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Benefit Evaluation of Different Allocation Modes of Soil and Water Conservation Measures in Ta-pieh Mountains Area [PDF]
[Objective] In order to reveal the effect of different soil and water conservation measures on reducing runoff and sediment in Ta-pieh Mountains, optimize the allocation mode of soil and water conservation measures in Ta-pieh Mountains.
JIA Tinghui +4 more
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基于实地和遥感调查的离子型轻稀土尾砂土壤侵蚀对植被修复措施响应
Shuitu Baochi Xuebao, 2020 稀土开采产生大量尾砂，导致严重土壤侵蚀，伴生水质和地质灾害，评价植被修复措施对稀土尾砂土壤侵蚀治理效果可为措施优选提供理论依据。以寻乌县离子型轻稀土尾砂区为研究区，基于1982—2015年GIMMS NDVI 3 g、DEM等遥感和尾砂理化性状现场调查数据，采用空间代时间方法，结合RUSLE模型及其全微分公式探究不同修复年限土壤侵蚀量对植被修复措施的响应机理。结果表明：1982—2015年研究区土壤侵蚀模数显著下降，倾向率为-60 t/（km2·10a），突变年份为2008年；在植被修复措施实施年 ...
罗建伟, 白桦, 鲁向晖, 赵建民
doaj
Characteristics of Land Use Change and Evaluation of Ecological Sensitivity in Chongqing [PDF]
[Objective] Chongqing, as the economic center of the upper reaches of the Yangtze River in China and a barrier to ensure ecological security in the middle and lower reaches of the Yangtze River, is a typical ecological functional and fragile area in ...
GOU Qiantao, WU Han, XIE Xianjian
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Shuitu Baochi Xuebao, 2017 以RS、GIS和RUSLE模型结合SEDD模型，分析了退耕还林前后北洛河上游流域1990年、2000年和2010年土壤侵蚀强度和产沙量的时空变化特征。结果表明：3个时期年平均土壤侵蚀模数分别为18 189.72，7 408.93，2 857.76 t/(km2·a)，年均输沙模数分别为14 093.31，5 997.65，2 394.37 t/(km2·a)，均呈减小趋势。3个时期的土壤侵蚀量在地形上的分布表现出趋同性，即高程上均在1 475～1 575 m内平均侵蚀模数和侵蚀量表现出最大值 ...
闫 瑞, 张晓萍, 李够霞, 陈 浩
doaj
Effects of Interplanting Medicinal Herbs on Runoff, Sediment and Nitrogen and Phosphorus Losses in Young Oil Tea Plantation on Red Soil Sloping Field [PDF]
[Objective] To investigate the effects and applicability of different intercropping patterns of medicinal herbs on water, soil, and nutrient losses in young oil tea gardens on red soil slopes. [Methods] Runoff plot experiments were carried out in Jiangxi
DUAN Jian +4 more
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Shuitu Baochi Xuebao, 2002 在修正的通用土壤流失方程(RUSLE)的基础上,结合主城区的特点,对方程的计算方法进行了修正,在计算时采用降雨量≥25mm并且降雨强度≥10mm/h的数据筛选条件,从而得出更符合该区域的R值,这对主城区的水土流失量的估算有十分重要的意义。根据主城区独特的自然地理特征,本文建立适合重庆市主城区的降雨侵蚀力计算模型,使之能够在主城区复杂的自然地理环境条件下应用,在缺乏详细降水资料的情况下,该模型具有较强的实用性。
高克昌 赵纯勇
doaj
A New Method to Estimate the Cover Management Factor on the Loess Plateau in China [PDF]
[Objective] To investigate the combined effect of crop cover and crop management practices on preventing soil loss and improving the accuracy of C-factor estimation. [Methods] Six millet plots with different treatments, i.
LI Qinglan +4 more
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