密云水库北京集水区土壤侵蚀预测  

Prediction of Soil Erosion in a Water Catchment of Miyun Reservoir

作　　者：贺然 王棒[2] 朱国平[3] 齐实[2] 

机构地区：[1]北京市八大处公园管理处,北京100041 [2]北京林业大学水土保持学院,北京100083 [3]北京市房山区水务局,北京102488

出　　处：《农业环境科学学报》2007年第B10期579-582,共4页Journal of Agro-Environment Science

摘　　要：以密云水库北京集水区为研究对象,在USLE模型的基础上,根据国内相关的研究结果,利用GIS和RS建立了密云水库土壤侵蚀模型的数据库,对侵蚀因子进行计算并赋值添加到数据库中;利用ARC/INFO数据库的计算功能进行土壤侵蚀模数的预测,并根据水利部的土壤侵蚀强度标准进行了分级。结果显示,研究区水土流失总面积为1 073.10 km2,侵蚀强度以轻、中度为主,其中轻度侵蚀面积为791.19 km2,中度侵蚀为202.80 km2。Choosing the Water Catchment of Miyun Reservoir as a research object, based on USLE model and correlative research results home and abroad, the present paper established database of Miyun reservoir＇ s soil erosion model using GIS and RS, it computed the erosion gene and evaluated it and then added them to the data - base ; using the evaluate function of ARC/ INFO data - base to predict the soil erosion modulus, and to classify them based on the standard of the intensity of the soil erosion. The result showed that the total area of soil and water losses is 1073.10 km^2 and the erosion degree is mainly from light to moderate intensity, while the light erosion area is 791.19 km^2, the moderate erosion area is 202.80 km^2, respectively.

关 键 词：密云水库 USLE模型 土壤侵蚀 预测 

分 类 号：X144[环境科学与工程—环境科学]