Results 11 to 20 of about 1,083 (153)
Evaluation of Collapse Susceptibility Based on a Contribution Rate Model [PDF]
, 2022 [Objective] The spatial database of geological disaster field survey was conducted to analyze the formation mechanism and failure mode of collapse in the area where granite weathered residual soil was developed, to explore the contribution rate of ...
Cai Junjian +4 more
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Analysis of high-position landslide characteristics based on multi-source remote sensing data：A case study of the Yanwo Village landslide in Rongshan Town, Lizhou District, Guangyuan City [PDF]
, 2023 On October 6, 2021, a high-position landslide disaster occurred in Yanwo Village，Rongshan Town, Lizhou District, Guangyuan City,Sichuan Province, around 13: 00.
Dewei HE +3 more
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Causes and stability analysis of the landslide at Tianbao Reservoir in Jingning County, Gansu Province [PDF]
, 2023 On September 18, 2020, a landslide occurred on the left bank of Tianbao Reservoir in Tianbao Village, Sihe Town, Jingning County, Pingliang City, Gansu Province.
Guoying LI +4 more
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Long-runout characteristics of the Yongguang 1# loess flowslide in Minxian County, Gansu Province [PDF]
, 2023 Flowslide in loessic regions, characterized by their elongated shape and tendency to slide and accumulate along channels or gentle hillslopes, frequently lead to devastating and unpredictable disasters. The Yongguang 1# flowslide in Minxian County, Gansu
Guoxin ZHANG +5 more
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Shuitu Baochi Xuebao, 2022 为了量化植物根系吸水对非饱和土边坡稳定性的影响及为植被护坡的植物种类选择提供参考,采用COMSOL Multiphysics建立二维边坡,模拟不同根系形态、根长及降雨条件下的根系吸水引起的非饱和土边坡孔隙水压力的分布变化,并采用极限平衡理论对边坡稳定系数进行定量计算。结果表明:指数形根系吸水产生的吸力最大,比裸坡增大4.2倍,抛物线形根系吸水产生的吸力最小,但仍比裸坡增大2.7倍;根系越长吸水影响深度越大;根系越短,产生的吸力越大,且吸力在边坡表面的变化越显著;短期降雨后,含根系边坡吸力比裸坡高12 ...
钟彩尹 +4 more
doaj
Shuitu Baochi Xuebao, 2022 为探究黑土区不同坡形下的土壤侵蚀特征,基于黑龙江省粮食沟小流域9个耕地径流场侵蚀产沙数据,采用WEPP (Water Erosion Prediction Project)模型进行土壤侵蚀预报与情景模拟。结果表明:径流量和产沙的整体模拟效果较好,径流量决定系数(R2)与纳什系数(NSE)分别为0.71和0.60,产沙决定系数(R2)与纳什系数(NSE)分别为0.61和0.50,表明该模型对该区土壤侵蚀模拟具有较好的适用性。而模型模拟精度则随坡度增大而减小,在3°,5°和8°坡度下 ...
赵紫远 +3 more
doaj
Shuitu Baochi Xuebao, 2007 通过室内模拟降雨试验分析了不同坡形坡面径流流速的时空分异特征,研究结果表明:同雨强、同坡度条件下,直线形坡的坡面流速最大,凸形坡的其次,凹形坡的最小,并且在同坡形条件下,坡面流速随雨强、坡度的增加而增加。另外,不同坡形坡面径流流速在空间上也存在一定的差异,坡面径流流速基本上沿着坡面向下逐渐增大,并且坡面上各段流速随坡度、雨强的增大而逐渐增大。
范昊明 +5 more
doaj +2 more sources
Shuitu Baochi Xuebao, 2020 通过野外径流小区人工降雨试验，研究坡形和聚丙烯酰胺（PAM）对径流量、土壤侵蚀和养分流失的影响。试验设置2个PAM施用量，分别为0，2 mg/L；9种坡形处理，即4个凹形坡，4个凸形坡，1个直形坡。结果表明：（1）与均匀坡面相比，凸形坡的平均土壤流失量、氨氮流失量和磷酸盐流失量分别增加25.12%，24.01%和26.96%，且土壤和养分流失量随着凸形坡面的凸度增加而增加，凹形坡的平均土壤流失量、氨氮流失量和磷酸盐流失量分别减小13.53%，10.85%和19.95%；（2 ...
邢伟民 +4 more
doaj
Model Construction of InSAR-based Rainfall Thresholds for Landslide Hazards in Yanhe Basin, Chinese Loess Plateau [PDF]
[Objective] Empirical rainfall thresholds have geographical limitations, it is of great significance to carry out a rainfall threshold modeling study for landslide hazard on the Chinese Loess Plateau.
CHEN Manyu +5 more
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Review of Policy Research, Volume 43, Issue 2, March 2026.ABSTRACT This study applies the Narrative Policy Framework (NPF) within a non‐democratic context, exploring the role of policy narratives in the implementation of patient‐centred healthcare policy in China. Drawing on a dataset of academic journal articles that reference both “market” and “patient‐centredness,” the research reveals how local ...
Jingqing Yang
wiley +1 more source