摘要
密云水库是北京市的重要水源地之一。其上游地区的植被、地形、地质以及降雨等因素对该区的土壤侵蚀情况具有较大影响,可直接影响到密云水库的泥沙入库量及水质等。而在土壤侵蚀调查方面,遥感技术具有较大的优势。在北京市国土资源与地质环境遥感综合调查的基础上,对遥感技术在密云水库北部地区土壤侵蚀调查中的应用进行了探讨。首先根据建立的遥感解译标志对遥感图像进行判读并实地验证,然后,根据影响土壤侵蚀的生态环境因子,建立了数学评判模型,对该区的土壤侵蚀情况进行了评判。为该区的水土保持规划、管理和决策提供了科学依据。
Miyun Reservoir is one of the important waterresource in Beijing.In its upper reaches,the factors of vegetation cover,terrain,geology and rainfall have great effection on soil erosion.They directly affect the silt amount and water quality of Miyun Reservoir.The remote sensing has the very supremacy in soil erosion survey.On the basis of the synthetical survey of land resources and geological environment in Beijing,this paper discusses the remote sensing application in soil erosion survey in the northern area of Miyun Reservoir.Firstly,based on establishing interpretation elements,satellite images have been integrated and the ground real conditions have been rectified.Secondly,according to ecological environmental factors that can affect soil erosion,the mathematics model of judgement has been built,and the soil erosion has been judged.The result of the research can serve the plan,management and decision in the soil erosion prevention.
出处
《中国地质灾害与防治学报》
CSCD
2003年第4期100-104,共5页
The Chinese Journal of Geological Hazard and Control
关键词
土壤侵蚀
遥感技术
密云水库
地质环境
Miyun Reservoir
soil erosion
remote sensing
survey
application
