Spatial-temporal Evolution Characteristics and Driving Factors of Sand-dust Weather for Inner Mongolia Autonomous Region During 1960—2020 [PDF]
, 2023 [Objective] The spatial and temporal evolution characteristics and driving factors of sand-dust weather in Inner Mongolia Autonomous Region from 1960 to 2020 were analyzed in order to scientifically understand the changes in regional sand-dust weather ...
Qin Fucang, Wang Manfei, Yang Shuchang
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137Cs-based Estimation of Soil Erosion and Organic Carbon Loss in Alpine Meadow Soil on Tibetan Plateau [PDF]
, 2023 [Objective] Soil erosion and its associated carbon loss in an alpine meadow on the Tibetan Plateau were quantitatively analyzed in order to provide a reference for comprehensively evaluating the impact of soil erosion and for implementing effective soil ...
Li Wenjia, Lu Haiya, Yu Shiyong
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Analysis and application of safety risks for gas pipelines in karst sinkhole-prone areas based on the D/I-MICMAC-VS integrated method [PDF]
, 2023 To mitigate the risk of gas pipelines in karst sinkhole-prone areas, this study employs the DEMATEL/ISM method to elucidate the hierarchical structure and causal relationships among various factors in the system, considering four categories of accident ...
Junhua CHEN, Qiaochu LI
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Major Achievements and Future Key Fields of Soil Erosion Research in China [PDF]
, 2022 [Objective] The developing history of soil erosion research in China was reviewed, the major research achievements were summarized, and the current problems and key research fields in the future were analyzed to provide a reference for China's soil and ...
Cai Qiangguo, Ke Qihua, Zhang Keli
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Soil Particle Settlement Sorting and Distribution Characteristics of Carbon, Nitrogen and Salt During Gradual Thawing [PDF]
, 2023 [Objective] The classification of sediment particles and the accompanying distribution characteristics of carbon, nitrogen and salt in the process of soil thawing layer by layer under snowmelt runoff scenario were analyzed in order to identify the ...
Hu Yaxian +5 more
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Shuitu Baochi Xuebao, 2023 为探究植物篱对坡耕地侵蚀分布的影响,设置1个坡度(15°)、3个降雨强度(60,90,120 mm/h)和3种坡面条件(裸坡对照CK、植物篱P和仅有植物篱根系R),采用稀土元素氧化物将坡面分成5段(自上而下),开展室内人工模拟降雨试验。结果表明:随着降雨强度的增加,各坡面条件示踪坡段的侵蚀速率和侵蚀量均有所增加,整体上均表现为CK>R>P的趋势,植物篱可以显著降低坡面各部位的侵蚀速率及其侵蚀量,且使得侵蚀产沙主要集中在坡中部的Ce、La和Yb 3个示踪区。与CK坡面条件相比 ...
肖海 +7 more
doaj
Shuitu Baochi Xuebao, 2021 为探究南方高强度、高频次降雨下甘蔗种植对赤红壤坡面土壤侵蚀的影响，基于径流小区原位观测试验，分析不同种植方式下（顺坡和横坡）蔗地和裸坡坡面径流和侵蚀泥沙特征，探讨甘蔗种植方式对坡面侵蚀产沙的影响，获得影响赤红壤坡面侵蚀的主要雨型。结果表明：（1）坡面径流量和侵蚀量均表现为裸坡 > 顺坡蔗地 > 横坡蔗地，裸坡坡面径流量和侵蚀量是顺坡蔗地和横坡蔗地的1.7~5.3倍；顺坡蔗地坡面径流量和侵蚀量是横坡蔗地的1.9，2.3倍。（2）次降雨条件下，裸坡坡面径流量与侵蚀量均整体高于蔗地处理 ...
杨任翔 +5 more
doaj
Extent of Cropland and Related Soil Erosion Risk in Rwanda (卢旺达农田面积扩张带来的土壤侵蚀风险研究)
, 2016 在非洲，农田开垦是造成土壤侵蚀的主要原因。本研究以卢旺达为例，评估了该国当前的农田面积和土壤侵蚀情况。卢旺达是非洲最近十年人口增加和农田扩张最快的国家。我们利用 Landsat-8 影像，得到了卢旺达 2015 年的土地利用和覆被数据。基于降水、土壤性质、数字高程模型（DEM）、归一化植被指数（NDVI）和土壤保护因子数据，驱动 RUSLE（Revised Universal Soil Loss Equation）模型，评估了卢旺达的土壤侵蚀速率，空间分辨率是 30 米。模型结果显示 ...
Fidele Karamage
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Shuitu Baochi Xuebao, 2021 明晰砒砂岩坡面侵蚀泥沙颗粒输移特征是研究黄河泥沙淤积问题的关键。采用水力、风力、冻融复合侵蚀实体模拟技术，研究在35°坡度和110 mm/h雨强条件下单一水蚀、冻融+水蚀、冻融+风蚀+水蚀3组不同侵蚀动力复合作用下，砒砂岩坡面侵蚀泥沙颗粒变化特征。结果表明：砒砂岩坡面在单一水蚀作用下以整体侵蚀为主，侵蚀泥沙颗粒变化稳定；冻融+水蚀作用下粗颗粒产出明显，冻融作用对粗颗粒的影响凸显；冻融+风蚀+水蚀作用下坡面稳定性最差，侵蚀泥沙颗粒变化最剧烈。复合侵蚀作用下坡面侵蚀过程以搬运粒径较大的泥沙颗粒为主 ...
高玄娜 +4 more
doaj
Analysis of the characteristics and development trends of the “7•5” catastrophic debris flow in Xiangjiao gully, Muli County, Sichuan [PDF]
On July 5, 2021, a catastrophic debris flow disaster occured in Xiangjiao gully, Muli County, Sichuan Province. This study analyzed the formation conditions, eruption process and eruption characteristics of the debris flow through field investigation and
Hao SUN +4 more
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