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Characteristics of Runoff and Infiltration in Stony Soils under Simulated Rainfall Conditions
Authors
吴冰
朱元骏
毛天旭
邵明安
Publication date
1 January 2011
Publisher
Abstract
模拟降雨条件下研究了含砾石土壤的入渗过程,分析了砾石含量和坡度对土壤坡面产流时间和入渗的影响。研究结果表明:含砾石土壤的坡面产流时间与砾石含量和坡度密切相关,当坡度>5°时,产流时间与砾石含量呈线性负相关。当坡度<5°时,不同砾石含量的土壤入渗能力表现出明显差异;砾石含量为20%~30%时,土壤入渗相对增加;当坡度>10°时,砾石含量对入渗能力的影响不明显。利用Kostiakov入渗经验模型可以很好地模拟含砾石土壤的降雨入渗过程,模型中的经验系数K能够反映出降雨开始1 min内坡度和砾石含量对入渗的影响
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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