三峡库区重庆段水土流失的时空格局特征(英文)

编号 zgly0001585964

文献类型 期刊论文

文献题名 三峡库区重庆段水土流失的时空格局特征(英文)

作者 李月臣  刘春霞  袁兴中 

作者单位 CollegeofResourcesandEnvironmentalScience  ChongqingUniversity  CollegeofGeographicalScience  ChongqingNormalUniversity  KeyLaboratoryofGISApplication  ChongqingMunicipalEducationCommission 

母体文献 Journal of Geographical Sciences 

年卷期 2009年01期

年份 2009 

分类号 S157 

关键词 soilandwaterloss  Chongqing  ThreeGorgesReservoirArea 

文摘内容 Soil and water loss has been the most serious eco-environmental problem in the Three Gorges Reservoir Area of Chongqing.In this paper the authors studied the spatiotemporal features of soil and water loss from 1999 to 2004 based on RS and GIS techniques.The results showed that:(1) The soil and water loss area decreased from 1999 to 2004.(2) Soil and water loss mainly exists in purple soil,yellow soil,limestone soil,paddy soil and yellow brown soil distributed areas.(3) The dry slope land and sparse woodland that are intensively influenced by human activities experienced most serious soil and water loss.(4) Soil and water loss in the study area indicated an obvious vertical differentiation characteristic.(5) There is a significant correlation between soil and water loss and slope.(6) There is no obvious correlation between soil and water loss and aspect.(7) Soil and water loss mainly exists in the values of R between 300 and 340 distribution area.The very-high soil and water loss has obvious correlation with R.