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.
出处
《资源开发与市场》
CAS
CSSCI
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
作者简介
谢晓议（1988-），女，重庆市人，硕士研究生，主要从事资源环境遥感与GIS应用研究。
通讯作者简介：李月臣（1974-），男，山东省德州人，博士后，教授，主要从事资源环境遥感与GIS研究。
