岗南水库上游典型区土壤流失背景值估算  

Background Values Estimation on Soil Erosion in the Typical Upriver Area of Gangnan Reservoir

作　　者：史密伟[1] 孟令尧[1] 刘剑锋[1] 

机构地区：[1]河北省科学院地理科学研究所,河北石家庄050011

出　　处：《安徽农业科学》2009年第33期16448-16449,16509,共3页Journal of Anhui Agricultural Sciences

基　　金：河北省自然科学基金项目(D2005000588)

摘　　要：为了解岗南水库流域水土流失现状,以岗南水库上游典型小流域为研究区域,通过遥感手段和野外调查进行信息采集,在GIS支持下,根据通用土壤流失方程(USLE)模型对数据实施运算,估算小流域土壤流失量。结果表明,自然背景状态下,研究区年均土壤流失量为50.23t/(km2.a)。In order to understand the soil erosion status in the basin of Gangnan Reservoir, with the typical small upper basin of Gangnan Reservoir, the information was collected by using the methods of RS and field survey. Under the support of GIS, the data were calculated according to USLE model. The soil loss amount of small basin was estimated, The results showed that the annual mean soil loss amount in the study area was 50.23 t/（ km^2 .a） under the general conditions.

关 键 词：岗南水库 水土流失 通用土壤流失方程 

分 类 号：S157.1[农业科学—土壤学]