基于DEM的热作区土地利用现状分析——以阳江农场为例  

Land Use Status in Tropical Crop Areas Based on DEM——Take Yangjiang Farm as an Example

作　　者：章明[1,2,3] 李玉华[1,2] 曹蕾[2,3] 钟菲[2,3] 

机构地区：[1]重庆欣荣土地房屋勘测技术研究所,重庆400020 [2]重庆市国土资源和房屋勘测规划院,重庆400020 [3]重庆市土地利用与遥感监测工程技术研究中心,重庆400020

出　　处：《热带农业科学》2014年第10期91-94,共4页Chinese Journal of Tropical Agriculture

基　　金："十二五"国家科技支撑计划课题(No.2012BAJ22B06)

摘　　要：在GIS空间分析功能的支持下,利用数字高程模型(Digital Elevation Model,DEM)提取阳江农场高程、坡度和坡向数据,计算橡胶林、农用地及未利用地等3种土地利用类型的分级分布指数,准确描述农场主要用地类型的空间分布频率,总结分布趋势,为进一步制定热作区农场发展规划提供参考。Terrain factor is an important factor for crop growth and crop distribution, directly or indirectly affects the redistribution of sunshine hours and soil moisture. In this paper, base of GIS spatial analysis method, extract elevation, slope and aspect data of Yangjiang farm by digital elevation model （DEM）, and calculate the hierarchical distribution index of three land use types of rubber forest, agricultural land and unused land, descrip the spatial distribution of the main farm land use types accurately, summarizes a trend of the distribution of land use, and provide a reliable reference for the further development planning of crop planting areas of the tropics.

关 键 词：热作区 土地利用现状 

分 类 号：F301.2[经济管理—产业经济]