Results 11 to 20 of about 561 (143)
Shuitu Baochi Xuebao, 2022 为定量评估放牧对草原土壤入渗的影响,了解和防治放牧造成的水土流失,科学评估草原水文调节功能,采用双环入渗法研究了放牧对典型草原土壤入渗性能的影响,并收集影响土壤入渗的环境特征变量。结果表明:(1)土壤入渗能力均受到放牧活动的干扰,随着放牧强度的增加,土壤初渗速率、稳渗速率减小, 达到稳渗时的历时缩短,而轻度放牧对土壤入渗性能却具有增强作用,LG的初渗速率(5.12 mm/min)、稳渗速率(1.93 mm/min)、2 h累积入渗量(213.42 mm)均较好, 快速入渗至稳渗阶段历时延长。(2 ...
耿林昇 +4 more
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Shuitu Baochi Xuebao, 2021 为探索喀斯特地下浅层裂隙土壤水分运移规律，通过野外调查、单环入渗试验探索裂隙土壤的入渗特性及入渗模型的适应性。结果表明：（1）裂隙土壤初始入渗率为21.06~57.90 mm/min，入渗时间20~60 min后达到稳定入渗（4.21~13.69 mm/min），且入渗初期到最后的稳渗阶段存在着较大降幅（40.89%~89.08%），与非喀斯特地区相比，喀斯特裂隙土壤的入渗速率更快；裂隙土壤各入渗特征处于中等程度变异（变异系数为0.52~0.67）。（2）裂隙土壤各入渗特征与各土壤属性显著性相关较少 ...
朱列坤 +4 more
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Optimization of SCS-CN Model in a Mountainous Area on West Bank of Dianchi Lake [PDF]
, 2023 [Objective] The mountain flood runoff on the west bank of Dianchi Lake was simulated and calculated in order to provide a scientific basis for constructing flood interception facilities, reducing mountain flood disasters, and protecting the water ...
Li Jinmei, Wang Jinliang, Zhou Jingchun
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喀斯特高原石漠化区露石岩-土界面与非岩-土界面土壤入渗特性差异
Shuitu Baochi Xuebao, 2022 为揭示喀斯特石漠化区露石岩—土界面与非岩—土界面土壤渗透特性差异,通过环刀法探究岩—土界面与非岩—土界面土壤入渗特征及入渗模型适应性。结果表明:(1)岩—土界面0—10 cm土层和10—20 cm土层土壤容重大于非岩—土界面,土壤总孔隙度小于非岩—土界面。岩—土界面含水率和毛管孔隙度总体上大于非岩—土界面,非毛管孔隙度、黏粒和排水能力总体上小于非岩—土界面。(2)岩—土界面土壤的入渗能力总体上小于非岩—土界面,其初始入渗速率、平均入渗率、稳定入渗率小于非岩—土界面(平直形除外)。(3)3种形状岩 ...
许胜兵 +4 more
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Erosion Characteristics and Its Simulation of Erosion Amount for an Artificial Forest in an Exposed Feldspathic Sandstone Area [PDF]
, 2022 [Objective] The rainfall characteristics and water and sediment control ability of different types of artificial forestland in an exposed feldspathic sandstone area were determined in order to provide guidance for vegetation construction in the study ...
Dong Xiaoyu, Qin Fucang, Yang Zhenqi
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Global Research Progress Regarding Gully Erosion from 1991 to 2020 [PDF]
, 2023 [Objective] The international research situation, current research status, and trends in research hotspots in the field of gully erosion at home and abroad from 1991 to 2020 were analyzed, and the development trends of gully erosion measurement ...
Duan Shengdan +5 more
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Influence of mining-induced ground fissures on soil infiltration characteristics and its erosion effect in coal mining area of northern Shaanxi in the middle reaches of the Yellow River [PDF]
Cracking the soil and water loss effects of mining-induced surface fissures in the coal mining area of the middle reaches of the Yellow River is of great significance for ecological environment protection and high-quality development in the coal mining ...
Baodeng CHEN +6 more
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Shuitu Baochi Xuebao, 2022 为探究典型母岩不同发育程度土壤入渗特征，在三峡库区王家桥小流域采用圆盘入渗仪测定新成土（S1）、雏形土（S2）、淋溶土（S3）3种紫色砂岩不同发育程度土壤入渗过程，探究入渗过程的影响因素，并用3种常用模型进行入渗过程模拟，分析比较这些模型的适宜性。结果表明：（1）不同发育程度间土壤理化性质差异显著。雏形土和淋溶土土壤容重较新成土分别增加10.71%，19.50%，土壤总孔隙度分别降低8.79%，18.69%，通气孔隙度分别降低67.40%，8.16%，土壤黏粒含量分别增加10.01%，38.36 ...
张轩铭 +5 more
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Effects of Vegetation Restoration on Soil Infiltration and Runoff in the Gully Regions on the Loess Plateau [PDF]
[Objective] To study the effects of vegetation restoration on rainfall infiltration and runoff is of great theoretical and practical value for rational utilization of watershed water resources and ecological construction.
BAI Yungang +4 more
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Shuitu Baochi Xuebao, 2023 坡度和作物生育期是影响坡耕地土壤入渗性能的关键因素,作物生长导致土壤特性及根系变化进而影响坡面入渗过程。通过人工模拟降雨试验,设计4个坡耕地坡度(3°,5°,10°,15°)及2个降雨强度(40,80 mm/h),在谷子4个生育期(拔节初期、拔节中期、抽穗初期、灌浆初期)开展试验,探究坡度和生育期对谷子坡耕地土壤入渗特征的影响机制,并结合入渗模型(Horton、Kostiakov、Philip模型)对谷子坡耕地土壤水分入渗过程进行拟合并评价其适用性。结果表明:(1)随坡度增加土壤入渗能力下降,与3°相比,
付世琳, 姚冲, 余倩, 吴发启
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