土地利用/覆盖对洞庭湖流域水土流失的影响  

Effects of Land Use and Cover on the Soil and Water Erosion in the Dongting Lake Basin

作　　者：周和平[1] 尹建军[2] 肖送成 

机构地区：[1]湖南师范大学资源与环境科学学院,湖南长沙410081 [2]黄冈师范学院,湖南黄冈市438000 [3]常德市第七中学,湖南常德415000

出　　处：《水资源与水工程学报》2008年第6期45-48,共4页Journal of Water Resources and Water Engineering

基　　金：湖南省科技计划项目(2007FJ3021)

摘　　要：土地利用覆盖变化是当前国际地学研究的热点之一,通过大量的数据收集,利用灰色系统理论将洞庭湖各流域土地利用/覆盖对其水土流失的影响进行了聚类分析和关联分析。结果表明:1、耕地、荒山地、林地为洞庭湖流域水土流失影响的第一类因素,影响最大;非农业用地、草地为洞庭湖流域水土流失影响的第二类因素,影响居中;滩涂用地、园地、水域为洞庭湖流域水土流失影响的第三类因素,影响最小。2、各种土地利用类型对洞庭湖流域水土流失影响的排序为耕地、荒山地、林地、草地、非农业用地、园地、水域、滩涂用地。论文旨在为洞庭湖流域水土流失及洞庭湖的治理提供科学依据。The land use and cover change is one of the hot-point of the earth science international. Using the ways of the grey incidence cluster and the grey analysis, the author studies the effects of land use and cover on the soil and water erosion in the Dongting Lake Basin. The results shows that： 1. The cultivated land, undeveloped land and woodland have the most effects, the un-agricultural land and grass land have the middle effects, the mudflat, garden plot land and territorial water land have the lest effects. 2. Among all the sorts of land use and cover, the effects on soil and water erosion in the Dongting Lake Basin from more to less are follow： cultivated land, uncultivated land, forestry land, meadow land, un-agricultural land, garden plot land, territorial water land and mudflat land. The article can be provided the scientific theories for improving the soil and water erosion in the Dongting Lake Basin.

关 键 词：土地利用/覆盖 水土流失 灰色系统 洞庭湖流域 

分 类 号：S157.1[农业科学—土壤学]