摘要
为云南省农业结构调整、耕地后备资源区建设及生态移民搬迁安置提供科学依据,基于DEM应用ArcGIS和ERDAS技术,用海拔+地面坡度和海拔+地形起伏度划分和提取云南的高寒山区、山区、半山区和坝区的范围与面积,对云南山区和坝区的定量划分方法进行了研究。结果表明,2种方法提取的结果大致相同,坝区面积占云南省面积的6.72%～8.19%,主要分布在东部的云南高原、西南部及南部的河谷区域;半山区占22.6%～25.38%,主要分布在坝区周围;高寒山区占15.61%～15.78%,主要分布在滇西横断山区;山区占52.29%～53.77%,遍布全省各地。
The division methods of mountain region and flatland region were studied by ArcGIS and ERDAS technologies based on DEM to provide the scientific basis for agricultural structural adjustment,construction of reserve arable land resources and eco-migration settlement in Yunnan.The results showed that the area of the flatland region,semi-mountain region,high cold mountain region and mountain region covered 6.72%～8.19%,22.6%～25.38%,15.61%～15.78% and 52.29%～53.77% of total area of Yunnan Province respectively,which mainly distributed in the river valley area of eastern Yunnan plateau,southwestern and southern,the surrounding area of flatland region,Hengduan Mountain and various regions in Yunnan separately.
出处
《贵州农业科学》
CAS
北大核心
2011年第11期89-91,共3页
Guizhou Agricultural Sciences
基金
国家自然科学基金项目(40761009)
云南省应用基础研究项目(2007D081M)
云南省教育厅项目(06Y045A)
关键词
数字高程模型(DEM)
坝区
半山区
山区
高寒山区
云南
digital elevation model（DEM）
flatland region
semi-mountain region
mountain region
high cold mountain region
Yunnan
