水土保持通报2011,Vol.31Issue(4):1-6,6.
不同降雨类型下的南方典型土壤侵蚀量差异研究
Soil Loss of Different Typical Soils in South China Under Different Rainfall Types
摘要
Abstract
According to the observation data of rainfalls and soil loss in the ecological experiment station of red soil(EESRS) in Yingtan City of Jiangxi Province from 1997 to 2003,the amounts of soil erosion of single precipitation and single rainfall erosivity in different soils of south China were analyzed.The results were as following:(1) The tendency of rainfall erosivity in single precipitation was:Ⅴ〉Ⅲ〉Ⅳ〉Ⅱ〉Ⅰ(I: 12.7 mmrainfall20 mm;Ⅱ: 20 mm≤rainfall〈30 mm;Ⅲ: 30 mm≤ rainfall〈40 mm;Ⅳ: 40 mm≤ rainfall50 mm;Ⅴ: rainfall50 mm).(2) The tendency of unit precipitation on soil loss in different soil types was: Ⅰ〉Ⅳ〉Ⅲ〉Ⅴ〉Ⅱ.(3) The tendency of soil loss in single rainfall erosivity was the same as that of unit precipitation,except gradeⅡrainfall.关键词
降雨类型/土壤流失量/降雨侵蚀力/南方土壤Key words
rainfall types/amounts of soil erosion/rainfall erosivity/soils of South China分类
农业科技引用本文复制引用
张黎明,于东升,史学正,林金石..不同降雨类型下的南方典型土壤侵蚀量差异研究[J].水土保持通报,2011,31(4):1-6,6.基金项目
国家重点基础研究(973)发展计划项目“中国主要水蚀区土壤侵蚀过程与调控研究” ()
中国科学院知识创新工程项目 ()
国家自然科学基金项目 ()