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FACTORS AFFECTING RAINFALL_RUNOFF DURATION ON SLOPING LAND
Authors
甘淑
蒋定生
袁建平
Publication date
1 January 1999
Publisher
Abstract
运用小型野外便携式人工模拟降雨装置研究了林地、农地、裸地诸因子(坡度、承雨强度、土壤初始含水率、林地植被盖度、枯落层厚度)对产流历时的影响。研究发现,林地影响产流历时的主要因子为承雨强度和植被盖度;农地、裸地则为承雨强度、坡度和土壤初始含水率。建立了不同土地利用方式下影响产流历时的单因子、多因子回归方程。通过方程,由植被盖度、坡度、土壤初始含水率和承雨强度四个易于获得的因子可预测不同土地利用方式下的径流发生时间。地表结皮的形成对产流历时的影响以裸地表现最甚,其次为农地,林地影响不大
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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