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Effects of Slope Length on Detachment and Transport Processes on a Loessial Hillslope
Authors
汪晓勇
郑粉莉
Publication date
1 January 2008
Publisher
Abstract
通过不同降雨强度的模拟降雨试验,研究了15°时坡面坡长对黄土坡面侵蚀—搬运过程的影响。结果表明,坡面径流量随坡长的增加而增加,在50和75 mm/h降雨强度下,坡面径流量随坡长增加的幅度基本相同。在100 mm/h降雨强度下,当坡长小于5 m时,坡面径流量随坡长的增加幅度较小,而当坡长大于5 m时,坡面径流量随坡长增加的速率明显增大。在8 m坡长内,坡面侵蚀量随坡长变化呈波状起伏的交替变化;随坡长增加,坡面侵蚀现象呈现以侵蚀—搬运过程为主与以侵蚀—沉积过程为主的交替现象
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018