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坡度对坡面土壤侵蚀的影响分析
Authors
刘青泉
李家春
陈力
Publication date
1 January 2001
Publisher
Abstract
在运动波理论基础上,就影响土壤侵蚀的主要因素,包括降雨超渗净雨量,坡面流水深、流速和切应力,以及土壤抗冲蚀能力等随坡度的变化关系进行了理论分析。并进一步对坡面土壤侵蚀的坡度界限做了较细致分析,表明坡度界限是一个变量,随颗粒粒径、容重、坡面糙率、径流长度、降雨入渗差值(净雨量),以及土壤摩擦系数等因素的不同而改变,给出了界限坡度的变化规律,并得出一般情况下土壤侵蚀的坡度界限值应在41.5°~50°范围内的结论
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018