摘要
地形地貌是最基本的地理要素,它决定着自然地理单元的形成和地面物质与能量的再分配。本文运用GIS的空间分析功能,分析了三峡库区海拔高程、坡度、坡向、起伏度四个地形因子,对地貌形态进行了定量划分,为农业规划、水土流失、土壤侵蚀等研究提供了较准确的基础数据。
Landform is the basic geographic factor,which decides the course of the nature geography cell forming and the energy reassigning.This paper takes the Three Gorges region as study area and creates special map basin in slope,aspect,elevation and rolling tolerance based on Geographic Information System and gets precise morphologic factors data.Then the morphological factors data are analyzed.All of the analysis provide data support for ecological study,agricultural plan,soil and water erosion and building etc.
出处
《测绘科学》
CSCD
北大核心
2006年第2期93-95,共3页
Science of Surveying and Mapping
基金
重庆市教委科学技术研究项目(基于RS和GIS的重庆山地景观时空格局演化定量研究)
