西安理工大学学报2011，Vol.27Issue(4)：386-391,6.
基于GIS的商南县土地利用地形分布特征研究
Research on Topographic Distribution Features of Land Use of Shangnan County Based on GIS
摘要
Abstract
In order to reveal the topographic distribution features of land use of Shangnan County, the space analysis technology of geographic information system is used to obtain the distribution conditions in the different types of land use in the slope degrees, slope directions, elevations and rolling degrees via the existing map of land use in Shangnan County and the overlap of topographic element maps extracted from the digital elevation model. Gibbs-Mirtin diversified index formula is used to compute the diversified indexes of land use types in the case of different factors. The results indicate that the land use types in Shangnan County are the forest land and grassland in the main; the cultivated land is next; and the rest of other land use type accounts for very small percentage. The cultivated land, resident point and industrial and mine land use, communication land use and water area are concentrated in the slop lands facing the east and south. The garden land, resident point and industrial and mine land use and water area are mainly distributed in lower elevations and the slop lands with less rolling degrees. The cultivated land, grassland, and communication land use are mainly distributed in the pieces of land with medium elevations and medium rolling degrees. The forest land use and uncultivated land are mainly distributed in the large piece of land with higher elevations and higher rolling degrees. Accordingly, the diversified land use indexes drop remarkably with an increase in slop degrees and a rise in elevation and an increase in rolling degrees.关键词
地理信息系统/商南县/土地利用/地形Key words
geographic information system/ Shangnan County/ land use/ topography分类
管理科学引用本文复制引用
王星,李占斌,李鹏,高海东..基于GIS的商南县土地利用地形分布特征研究[J].西安理工大学学报,2011,27(4):386-391,6.基金项目
国家自然科学基金资助项目(40971161,41071182) （40971161,41071182）
陕西省教育厅重点实验室基金资助项目(09JS094). （09JS094）
