基于GIS的县级土地利用现状分析——以陕西省洋县为例  

County-level Landuse Analysis Based on GIS——A Case Study of Yangxian

作　　者：杨琨[1] 常庆瑞[1] 高欣[1] 孙宁[1] 阴淑婷[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《水土保持通报》2009年第6期111-114,共4页Bulletin of Soil and Water Conservation

基　　金：国家重点基础研究发展计划(973项目)"区域水土流失过程与趋势分析"(2007CB407203);国家自然科学基金"黄土高原植被恢复对土壤有机碳影响机理及其储量估算研究"(30872073)

摘　　要：以陕西省汉中市洋县为研究对象,结合GIS技术,分析了该地区土地利用的类型、面积、空间分布及其与地形因子之间的关系。结果表明:(1)该区土地利用结构不很合理,未利用土地面积过多;(2)从坡度和海拔与不同土地利用类型之间的关系可以看出,耕地、园地、建筑用地均集中在坡度小于8°、海拔小于800 m的区域,随着坡度和海拔的增大,土地利用类型逐渐以林地和牧草地为主。By taking Yangxian, Hanzhong City, Shaanxi Province as an example, GIS technology was used to analyze the type, size, and spatial distribution of land resources in the region. Results are as follows： （1） The landuse structure was not appropriate and too much land was not used. （2） The analysis of land used, in view of slope and elevation, indicated that the cultivated land, gardens, and construction sites were concentrated in the areas with slope less than 8° and elevation less than 800 m above sea level. As slope and elevation increased, woodlands and pastures became the predominant landuse types.

关 键 词：土地利用 土地资源 GIS 

分 类 号：F301[经济管理—产业经济]