Results 21 to 30 of about 676 (100)

Spatial-temporal Evolution Characteristics and Driving Factors of Sand-dust Weather for Inner Mongolia Autonomous Region During 1960—2020 [PDF]

open access: yes, 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
core   +1 more source

137Cs-based Estimation of Soil Erosion and Organic Carbon Loss in Alpine Meadow Soil on Tibetan Plateau [PDF]

open access: yes, 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
core   +1 more source

Analysis and application of safety risks for gas pipelines in karst sinkhole-prone areas based on the D/I-MICMAC-VS integrated method [PDF]

open access: yes, 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
core   +1 more source

Major Achievements and Future Key Fields of Soil Erosion Research in China [PDF]

open access: yes, 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
core   +1 more source

Soil Particle Settlement Sorting and Distribution Characteristics of Carbon, Nitrogen and Salt During Gradual Thawing [PDF]

open access: yes, 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
core   +1 more source

Analysis of the characteristics and development trends of the “7•5” catastrophic debris flow in Xiangjiao gully, Muli County, Sichuan [PDF]

open access: yes
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
core   +1 more source

Slope Aspect Differentiation of Pisha Sandstone Slide Erosion and Its Response to Meteorological Factors [PDF]

open access: yes
[Objective] As a typical mode of gravity erosion in the Pisha sandstone area, debris sliding has become a significant source of coarse sand material within gullies, seriously threatening the ecological security of the basin.
LI Long   +4 more
core   +1 more source

Soil Erosion Process Under the Combined Action of Water and Gravity on Red Soil Slope [PDF]

open access: yes
[Objective] Soil erosion is one of the most important ecological and environmental problems in the world. It is of great significance to reveal the coupling mechanism of water and gravity combined erosion by analyzing the water and sediment process of ...
MA Lan   +4 more
core   +1 more source

Current situation and scientific challenge of soil and water erosion in Gully Consolidation and Highland Protection Project of DongZhi Loess Plateau [PDF]

open access: yes
Due to the influence of extreme rainfall and high intensity human engineering activities, the advance speed of the gully head in the Loess Tableland is intensified, which seriously threatens the economic and social development of the Loess Tableland.
Buping ZHANG   +5 more
core   +1 more source

淤地坝对黄土浅层滑坡的减蚀作用

open access: yesShuitu Baochi Xuebao, 2022
为了研究淤地坝淤积对浅层滑坡的减蚀作用,基于三维连续介质动态数值模型,采用Voellmy流变模型,分析了侵蚀基准面抬升后黄土滑坡运动参数、动力参数以及能量参数的变化规律。结果表明:浅层滑坡在沟谷坡运动过程中,平均速度、前缘速度、侵蚀物质体积和总动能急剧增加,导致滑坡在接触坡脚时前缘速度出现波动且坡脚处侵蚀严重,极具破坏性。随着侵蚀基准面逐渐抬升,滑坡运行时间和平均速度峰值呈"S"形函数下降趋势,前缘速度和滑坡移动距离呈线性函数下降趋势,侵蚀物质体积和总动能呈指数函数下降趋势。随着侵蚀基准面逐渐抬升 ...
张霞, 于国强, 李鹏, 李占斌
doaj  

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