Results 1 to 10 of about 2,722 (153)
Shuitu Baochi Xuebao, 2007 对黄河中游河龙区间晋西北片、陕北片坝库控制面积占比、坝库单位面积库容等参数与水利水土保持措施减沙效益关系进行了研究，结果表明：（1）晋西北片若没有坝库工程，仅靠水土保持坡面治理措施只能取得14％的减沙效益；每增加100km^2的坝库控制面积，即可提高2％的减沙效益；每增加400万m^2的库容，即可提高1％的减沙效益;坝库单位面积库容每提高1万m^2／km^2，减沙效益即可提高约10％。（2）陕北片减沙效益主要由坝库工程产生。减沙效益提高10％，坝库单位面积库容需要提高5万m^2／km^2 ...
冉大川 +3 more
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Effects of Different Plant Configuration Patterns on Flow and Sediment Reduction of Artificial Slope [PDF]
, 2022 [Objective] The impacts of different plant patterns and configuration proportions on soil and water loss of an artificial slope were analyzed in order to provide reference for artificial slope vegetation restoration.
Gong Changchun +6 more
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Effects of Different Micro Rainwater Harvesting Measures on Safflower Growth [PDF]
, 2023 [Objective] The cultivation of safflower with micro rainwater harvesting technology on the hillslopes of the temperate desert grassland in Yili Valley was evaluated in order to provide technical support for dryland cultivation of safflower and for ...
Hu Guiqing +3 more
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Characteristics of Erosive Rainfall and Its Effects on Runoff and Sediment Yield in a Low Mountain and Hilly Area of Lianyungang City [PDF]
, 2022 [Objective] The effects of different rainfall characteristics and different underlying surface conditions on soil erosion and sediment yield were determined in a low mountain and hilly area of Lianyungang City, Jiangsu Province, in order to provide a ...
Cheng Jianmin +3 more
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Dynamic Simulation of Soil Moisture Under Typical Land Preparation in Semi-arid Loess Area Using HYDRUS-1D Model [PDF]
, 2023 [Objective] The dynamic characteristics of soil moisture under different land preparation measures were analyzed in order to provide a scientific basis for assessing the eco-hydrological benefits of slope land preparations and for promoting vegetation ...
Dong Hongxia, Wei Qiang, Zhang Qindi
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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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Shuitu Baochi Xuebao, 2017 为探究茵陈蒿群落不同垂直结构对产流、产沙过程的影响，利用人工模拟降雨试验的方法，研究了不同垂直结构的茵陈蒿群落坡面侵蚀过程。结果表明：在植被盖度相同条件下，茵陈蒿多层群落结构（茵陈蒿+狗尾草+生物结皮）和双层群落结构（茵陈蒿+生物结皮）的减流、减沙效果显著优于单层群落结构，二者的减流效益分别为40.5%和22.6%，减沙效益分别为86.6%和73.5%。不同垂直结构的茵陈蒿群落累积产沙量均可表示为累积产流量的幂函数（R2＞0.98），表现为累积产沙量随累积产流量的增加而增加，且随群落结构层数的增加 ...
李盼盼, 王, 刘国彬, 李文达
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Shuitu Baochi Xuebao, 2022 为弄清干旱河谷区横垄坡面水土流失特征及水保效益,采用野外调查与室内人工模拟降雨相结合的方法,以坡耕地平作坡面为对照,开展了4种降雨强度(30,60,90,120 mm/h)和4种坡度(10°,15°,20°,25°)条件下横垄坡面产流产沙特征及减流减沙效益。结果表明:(1)横垄坡面产流时间随降雨强度和坡度的增大而提前,且受坡度影响远小于降雨强度;同等条件下,横垄坡面产流时间滞后平作坡面8.14%~55.60%。(2)随着降雨强度和坡度的增大,横垄坡面产流率和产沙率均表现为增加趋势。(3 ...
杨瑞杰 +4 more
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Shuitu Baochi Xuebao, 2022 通过室内模拟降雨试验,设置3种降雨强度(30,60,90 mm/h)和3种地表覆盖类型(裸土坡面、1 cm马尾松枯落物覆盖、1 cm马尾松灰烬覆盖),研究林火发生前后不同地表覆盖下的坡面产流产沙过程,明确枯落物和植物灰烬覆盖的减流减沙效益。结果表明:(1)相比裸坡,枯落物和灰烬覆盖下的坡面初始产流时间分别延长33%~80%和51%~200%,灰烬覆盖对延缓产流的效果更为明显;(2)相比裸坡,枯落物覆盖的减流效果稳定在12%~36%,而灰烬覆盖在中小雨强的减流效果高于70%,在90 mm ...
王冠, 吴文清, 刘明明, 黄柔
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