长江科学院院报2011，Vol.28Issue(10)：65-68,74,5.
华中地区土壤可蚀性因子研究
Spatial Distribution of Soil Erodibility Factor (K)in Central China
摘要
Abstract
Based on data of the second national soil survey, the soil credibility factor (K) of central China was calculated by EPIC (Erosion-Productivity Impact Calculator) model, and the spatial distribution of soil erosion factor of different soil types was worked out. It was revealed that the K value of soils in central China mainly ranged from 0.09 to 0.39, with high values in east and west Henan, and low values in south Hunan and the middle and east border of Hubei and Henan Province. There are 25 soil types in central China, among which cinnamon soil has the largest K value of 0. 34, followed by red clay of 0.31 and skeletal soil of 0. 19. The red soil, paddy soil, fluvoaquic soil, yellow soil, and yellow-brown soil, which are main soil types in central China, in total account for 72.63% of the whole area with K values respectively of 0.250, 0.253, 0.287, 0.225 and 0.244. The above figures generally reflect the soil erodibility of central China region.关键词
土壤侵蚀/土壤可蚀性/K值图/EPICKey words
soil erosion/ soil erodibility/ K value figure/ EPIC分类
农业科技引用本文复制引用
岑奕,丁文峰,张平仓..华中地区土壤可蚀性因子研究[J].长江科学院院报,2011,28(10):65-68,74,5.基金项目
国家重点基础研究发展计划(973计划)(2007CB40720301 -3) （973计划）
