水土保持通报2012，Vol.32Issue(3)：133-135,159,4.
长沙市东郊不同母质发育耕型红壤的可蚀性因子K值估算
Calculation of Soil Erodibility Factor K Value of Cultivated Red Soils Developed from Two Different Parent Materials in Eastern Suburb of Changsha City
摘要
Abstract
Soil samples of two cultivated red soils developed from weathered parent materials of quaternary red earth and granite were collected in eastern suburbs of Changsha City.Soil particle composition and soil organic matter were obtained by means of laboratory analysis.Then,soil erodibility factor K value was calculated using Nomogragh model,modified Nomogragh model,EPIC model,geometric mean particle model and Torri model.Finally,the calculated soil erodibility value was compared with the measured soil erodibility factor K value by the Red Soil Ecological Experimental Station of the Chinese Academy of Science in Jiangxi Province.Results showed that Torri model and geometric mean particle model are more suitable for calculating the K value of red soils developed from quaternary red earth in the eastern suburb of Changsha City,whereas EPIC model,geometric mean particle model and Torri model are suitable for calculating the K value of red soils developed from weathered granite materials.关键词
母质类型/耕型红壤/土壤可蚀性K值/长沙市东郊Key words
parent materials type/cultivated red soil/soil erodibility factor K value/the eastern suburb of Changsha City分类
农业科技引用本文复制引用
谢红霞,陈琼,李锦龙,邓旭仁,王翠红,王开运..长沙市东郊不同母质发育耕型红壤的可蚀性因子K值估算[J].水土保持通报,2012,32(3):133-135,159,4.基金项目
水利部公益性行业科研专项“红壤侵蚀区坡面水土流失综合整治的监测与评价” （）
湖南农业大学研究性学习与创新性实验计划项目 （）
