Results 61 to 70 of about 4,473 (155)
Shuitu Baochi Xuebao, 2005 通过不同溶液浓度土壤间歇入渗实验．研究了溶液浓度对污灌和灌施条件下波涌灌溉土壤间歇入渗水分入渗特性的影响．分析了土壤间歇入渗量随溶液浓度增渗的机理，为进一步研究污灌和施肥条件下土壤间歇入渗溶质运移规律奠定了基础。
吴军虎 费良军 李怀恩 赵茜
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Controlling influence of the “perched water structure” on rainfall-induced landslide: A case study of the Yaogou landslide in Zhushan County, Hubei Province [PDF]
The Yaogou landslide, located in Zhushan County, Hubei Province, exhibits distinctive aquifer characteristics and varying permeability, leading to the retention of groundwater within the landslide after rainfall, forming confined water.
Lihua LI +3 more
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Shuitu Baochi Xuebao, 2007 通过对比分析季节性冻融条件下草地与裸地入渗试验结果,得到了草地冻融条件下的入渗规律。结果表明,在冻融各阶段,地表0~40 cm深度范围内,草地地温均高于裸地,但土壤含水率低于裸地;在土壤初冻和融化阶段,草地入渗90 min累积入渗量大于裸地,但其初始入渗强度小于裸地初始入渗强度;在土壤完全处于冻结状态时,草地与裸地的入渗过程、入渗量基本相同。研究结果为草地冻融土壤入渗特性的进一步研究奠定基础,为区域水土保持与生态修复工程及季节性冻土区冬春灌溉提供参考。
延耀兴, 郑秀清
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Analysis of soaking deformation characteristics of large-thickness discontinuous collapsible loess [PDF]
Objective The unique stratigraphic structure of the widely distributed discontinuous loess stratum in the Guanzhong Plain area of China results in significant differences between the indoor calculated values and field-measured values of the self-weight ...
HUI Hanbin +3 more
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Research and application of transparent soil test technology in rainfall infiltration of landslide [PDF]
The detailed seepage process and rainfall infiltration temporal variation cannot be observed visually due to the complexity and non-visibility of the internal structure of landslide body, thus making it difficult to identify the specific process of ...
Meng CHEN +3 more
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Shuitu Baochi Xuebao, 2001 作为一种新型高效的土壤结构改良剂 PAM,在一定条件下能显著地提高土壤入渗能力 ,减小坡面径流。采用室内人工模拟降雨试验 ,研究了不同 PAM覆盖度下降雨产流随时间的动态变化及其与雨强、坡度的关系 ,以及入渗率随时间的变化规律 ,分析了 PAM、坡度、雨强对入渗率的影响。结果表明 ,地表施加 PAM后土壤的入渗率及稳定入渗率都比未施 PAM显著提高。通过对比施加 PAM后 Kostiakov入渗模型与 Horton入渗模型的显著性 ,表明 ...
刘纪根 雷廷武 等
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Seepage characteristics of accumulation landslides under different types of heavy rainfall stability analysis [PDF]
Heavy rainfall is a major causes of sedimentary landslide disasters, and understanding the spatiotemporal dynamic characteristics of the seepage field in landslides under heavy rain is crucial for evaluating landslide stability and providing ...
Hao SHI +5 more
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Shuitu Baochi Xuebao, 2017 为揭示排土场复垦区不同土地利用类型土壤的水源涵养功能，采用野外实地双环入渗试验和室内理化分析方法，系统地研究了海州露天煤矿排土场复垦区不同土地利用类型（乔木林地、灌木林地、农用地、荒草地）土壤入渗特性及其影响因素。结果表明：不同土地利用类型下的土壤初始入渗率、稳定入渗率和累计入渗量均表现为乔木林地>灌木林地>农用地>荒草地；不同土地利用类型下土壤入渗过程的拟合优度存在差异，G-P综合模型、Kastiakov模型、Horton模型的平均拟合优度依次为0.926，0.908，0.905。G ...
吕 刚 +4 more
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Meso and micro pore structure test of Jingyang shallow loess [PDF]
Rainfall and irrigation are the most common driving forces of geological disasters in loess areas. Generally, the infiltration depth is shallow and mainly controlled by microchannels.
Hengfei SUN +5 more
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Shuitu Baochi Xuebao, 2018 利用黄丘区第三副区野外坡面模拟降雨试验，研究了3种覆盖度（30%，60%，90%）和5种降雨强度（1，1.5，2，2.5，3 mm/min）下15°草地坡面土壤入渗过程变化规律。结果表明：（1）土壤入渗率随着草被覆盖度和降雨强度的增加不断增大，草被覆盖度越大，土壤入渗率的增加效果越显著，土壤初始入渗率与降雨强度呈指数函数关系，土壤稳定入渗率与降雨强度呈幂函数关系。（2）土壤累积入渗量与降雨时间呈良好的幂函数关系，草被覆盖度越大，土壤累积入渗增量越明显，降雨强度对土壤累积入渗量的影响存在阶段性差异。（3 ...
何子淼, 肖培青
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