摘要
以都安瑶族自治县为例,利用DEM数据、土地利用现状图,以及野外实际调查资料,通过建立基于高程的地貌分区、叠加分析,分析了研究区土地利用空间分布特征及与地形因子的关系。结果表明,土地利用类型空间分布具有强烈的区域差异性,各地貌分区区域的土地利用组合不同,同一土地利用类型在不同高程区域的分布存在差异;随海拔高程增加,居民地呈显著减少趋势,旱地和林地呈现先递增后递减的趋势,未利用地始终主导着研究区的土地利用类型。
The thesis took the duan town as the example,based on DEM data,land use map and other materials from field survey,the study analyzed the spatial pattern of land use and the relationship between land use and topography in the research zone by creating DEM,geomorphologic zoning and altitude classification.The results showed that,spatial distribution of land use types was characterized by strong area differentiation.Even thought it was the same land use type,the spatial distribution was diversified in different geomorphologic sub-area and altitude sub-zone.With the rise of altitude,the area of residence land decreased,but the area of woodland and drought land increased before and then decreased after,the bare land also the main type of land utilization.
出处
《地理空间信息》
2011年第1期103-105,120,共4页
Geospatial Information
关键词
DEM
地貌分区
土地利用特征
Digital Elevation Model,geomophologic zoning,landuse characteristics
