Results 81 to 90 of about 1,337 (152)
Landslide susceptibility assessment in Shenzhen based on multi-scale convolutional neural networks model [PDF]
Convolutional neural network (CNN) models are widely used in landslide susceptibility assessment due to their powerful feature extraction capabilities, and traditional CNN is no longer able to meet the requirements. Therefore, this paper proposes a multi-
Binghai GAO +7 more
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Study on debris flow susceptibility based on SPY-RF model: A case study of the upper Minjiang River Basin [PDF]
Debris flow is a high-concentration, heterogeneous, multiphase flow typically triggered by intense rainfall or snowmelt. Its complex formation and movement processes make accurate susceptibility assessment vital for disaster monitoring and mitigation ...
Fucheng XING +7 more
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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
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Shuitu Baochi Xuebao目的为探究光伏板覆盖对坡面产流产沙的影响，探讨光伏场区的布设方式和水土保持措施。方法采用室内模拟降雨试验，设计光伏板倾角（30°、35°、40°），安装高度（0.4、0.6、0.8 m）及排列方式（光伏板长边与坡向垂直定义为横向排列L，光伏板长边与坡向平行定义为竖向排列V）3因素组合。对横向排列、安装高度0.8 m、倾角30°的光伏板坡面，增设条形石子与草垫防护措施，进行重复降雨试验。结果1）光伏板覆盖可降低坡面径流量和累计泥沙量，较裸露坡面（CK），最大降幅分别为26.8%、56.6 ...
杜月 +7 more
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Characteristics of geological hazard development and disaster-inducing environment of the MS6.2 earthquake in Jishishan, Gansu Province [PDF]
Objective The MS6.2 earthquake that struck Jishishan County, Gansu Province, on December 18, 2023, triggered a series of secondary geological disasters, including landslides, collapses, and debris flows.
HUANG Ting, LU Shiming, WU Zhonghai
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Shuitu Baochi Xuebao, 2019 为防治解冻期土壤侵蚀，以东北长白山地丘陵区典型小流域为研究对象，选取典型农耕地进行实测观测，分析不同坡位、局部坡度、坡向解冻期土壤侵蚀特征，量化土壤水分、温度、剪切力、反射辐射及局部坡度对土壤侵蚀的影响，构建解冻期农耕地土壤侵蚀预测模型。结果表明：解冻期土壤侵蚀从坡上、坡中到坡下依次增大，随局部坡度的增大而增大，但增长趋势减缓，南坡最大而北坡最小，不同坡位、局部坡度和坡向土壤侵蚀均存在显著差异 ...
贾燕锋 +4 more
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Shuitu Baochi Xuebao, 2003 坡地水土流失是导致区域土壤质量退化与土地生产力下降的重要原因。采用野外天然降雨-径流小区试验法,初步研究了黄土高原黄绵土休闲坡耕地一次轻度侵蚀(侵蚀量410～435t/km2)降雨前后土壤质量的退化特征。试验结果表明,降雨侵蚀前后坡地表层(0～5cm)土壤性质均具有相似的波状变化特征,其中>50μm砂粒含量与50～20μm微团聚体含量随坡长的增加呈降低趋势,而粘粒含量、比表面积(SSA)、20～2μm微团聚体含量、土壤有效磷(AP)与全磷(TP)含量以及土壤含水量均为增大趋势 ...
李裕元 邵明安 郑纪勇 张兴昌
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[Application of virtual endoscopy in the diagnosis of adenoid hypertrophy and the morphologic classification of adenoid]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023 Li Y +5 more
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Avalanche susceptibility evaluation of the Kezhayi to Gongnaisi section of the Duku expressway [PDF]
The Kezhayi to Gongnaisi section of the Duku expressway is predominantly characterized by alpine landforms, with steep terrain cutting that provides conducive conditions for avalanche development.
Bin WANG +4 more
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野生动物学报, 2011 采用样线法以巢址为指标在红花尔基樟子松林国家级自然保护区对松鼠的生境保护选择进行了定量研究。使用样线法进行调查,共获取147个巢样方和160个对照样方,对每个样方分别测定了8个环境参数。主成分分析结果表明,影响松鼠巢址选择的诸因素重要性依次为:林型、生境的郁闭程度、生境所处坡向坡位。松鼠显著倾向于在利用苔草樟子松林,随机利用其他类型樟子松林,而对杨桦林等则倾向回避。松鼠巢树周围的树木密度和多样性显著高于对照样方。巢址生境多位于南向的中、下坡位。
张立志 +4 more
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