基于GIS的重庆市长寿区建设用地地形适宜度测评  

Assessment on the Construction Land Terrain Suitability in the Changshou District of Chongqing Based on GIS

作　　者：谢晓议 李月臣[3,1,2] 曾咺[4] 

机构地区：[1]重庆师范大学地理与旅游学院 [2]重庆师范大学GIS应用研究重庆市高校重点实验室 [3]重庆师范大学计算机与信息科学学院,重庆400047 [4]重庆市环境保护信息中心,重庆401147

出　　处：《重庆师范大学学报（自然科学版）》2014年第4期59-63,F0002,共6页Journal of Chongqing Normal University:Natural Science

基　　金：重庆市博士后科研项目特别资助基金(No.渝xm201102001);资源环境与生态建设重庆市高校创新团队基金

摘　　要：城镇建设用地适宜性评价作为未来城镇规划用地选择的基础依据,倍受众多规划专家、学者的重视。本文以GIS为主要技术平台,利用ArcGIS空间分析功能中的邻域分析工具,基于25 m×25 m的长寿区DEM数据,提取平均海拔、相对高程、平地面积,运用地形起伏度模型计算长寿区地形适宜度的空间分布,并结合土地利用现状图,揭示了现有建设用地分布规律。结果表明:①长寿区整体建设用地地形适宜性较高;②现有建设用地中,最适宜地形占49.85%,适宜地形占37.68%,较适宜地形占10.07%,不适宜地形占2.06%,最不适宜地形占0.33%;③长寿区城镇群发展潜力可观。实证表明本研究结果可为长寿区建设用地空间布局的合理性、城镇规划选址等提供科学依据和重要参考。As the basis of land selection in cities and towns planning, city construction land suitability evaluation has always been paid more attenlion. Applying （;IS technology, making use of the neighborhood analysis of spatial analysis function of Arc（;IS , basing on 25mX25m I）EM of Cbangshou, fully considering the influence of terrain factors on construction land suitability, this paper cal eulated tbe Changshou district terrain suitability of spatial distribution. And connecting with the present situation of land use map reveals The distribution rule of the existing land for construction. Results indicate that .. （1） from the basic features, construction land terrain suitability of Changshou is higher. （2） The most suitable terrain accounted for 49. 85%, the suitable terrain accounted for 37. 68%, the low suitable terrain accounted for 10. 07%, the unsuitable terrain accounted for 2. 06%, the most unsuitable terrain accounted for 0. 33% of the existing construction land. （3） The city cluster development potential of Changshou is consid erable.The empirical shows that this study can provide scientific basis and important reference for reasonable spatial layout and for the analysis of site selection of construction land in Changshou.

关 键 词：建设用地 地形起伏度 GIS DEM 重庆市长寿区 

分 类 号：K992[历史地理—人文地理学]