重庆市地形起伏度及其与人口、经济的相关性研究  

Relief Degree of Land Surface and Its Correlation with Population and Economic Research of Chongqing Mountain Regions

作　　者：谢晓议 李月臣[1,3,2] 曾咺[4] 

机构地区：[1]重庆师范大学地理与旅游学院,重庆400047 [2]GIS应用研究重庆市高校重点实验室,重庆400047 [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：《资源开发与市场》2014年第6期656-659,F0004,共5页Resource Development & Market

基　　金：重庆市教委科技项目(编号:CY120402);重庆市气象局开放基金项目(编号:Kfjj-201103);重庆市博士后科研项目特别资助基金项目(编号:渝xm201102001);资源环境与生态建设重庆市高校创新团队基金项目

摘　　要：以GIS为主要技术平台,基于1∶5万的重庆市数字高程模型(DEM),采用窗口分析法(选择最佳窗口尺寸大小为5×5)提取了重庆市地形起伏度,并分析了重庆山地地形起伏度的分布规律及其与人口、经济的相关性。结果表明:①重庆市地形起伏度介于0.08—3.51之间,整体趋势为东部高于西部,南部高于北部。②重庆市地形起伏度随着海拔高度升高呈逐渐增加的趋势。③地形起伏度与人口密度的乘幂拟合曲线拟合度为0.7999,且呈显著负相关;地形起伏度与人均GDP对数拟合曲线的拟合度为0.6326,并呈显著负相关。Based on the GIS as the main technology platform,this paper based on the 25m × 25m of Chongqing digital elevation model（ DEM）,window analysis,chose the best window size of 5 ×5,extracted the RDLS of Chongqing,and analyzed the RDLS and its correlation with population and economy. The results showed that： ①The RDLS of Chongqing between 0. 08-3. 51,the overall trend was that the east was higher than the west,the south than the north. ②With the rising of altitude,the RDLS of Chongqing increased gradually. ③The RDLS with a population density of power fitting curve fitting degree was 0. 7999,and showed a significant negative correlation. Logarithm of per capita GDP and RDLS fitting curve fitting degrees was 0. 6326,and was significantly negatively correlated. The RDLS had significant effects on the population distribution,to a certain extent,it restricted the development of regional economy.

关 键 词：地形起伏度 人口分布 GIS 移动窗口法 重庆 

分 类 号：P216[天文地球—测绘科学与技术]