基于3S的黄土丘陵区流域土地利用/覆盖特征研究  

Study on Land-Cover Pattern of Hilly-Gully Region of Loess

作　　者：龚建周[1] 张鲁[2] 杨景荣 仝川[2] 

机构地区：[1]中山大学环境科学与工程学院,广州510275 [2]内蒙古大学生态与环境科学系,呼和浩特010021 [3]内蒙古遥感中心,呼和浩特010010

出　　处：《干旱区资源与环境》2005年第5期25-29,共5页Journal of Arid Land Resources and Environment

基　　金：国家重点基础研究发展规划项目(G2000018604)资助。

摘　　要：借助3S技术对十里长川流域土地利用/覆盖数量特征进行定量研究,并选用5种土地利用程度的指标分析研究区土地利用程度,从一个侧面反映流域土地利用/覆盖状况。结果表明:十里长川流域土地利用程度较高(74.43%),其中农业用地是流域面积的74.39%,占总土地利用面积的99.95%;土地利用/覆盖呈现出高度镶嵌斑块状,内部结构仍然存在问题。The quantity characteristics of land-use and land-cover were studied in this research in the Shillchangchuan Basin based on 3S technology. At the same time, five indices were selected to describe the degrees of land imposed. The results showed that land had been imposed greatly, as a proportion of 74.43%,while farming area had a proportion of 74.39%. Furthermore, land-use and land-cover presented highly fractal patches. The research also took on some problems to the structures of the study area at some degrees.

关 键 词：土地利用/覆盖 流域 黄土丘陵区 3S 

分 类 号：F301.24[经济管理—产业经济]