基于地理国情数据的重庆两江新区建成区空间扩张分析

Analysis of Spatial Expansion of Liangjiang New District in Chongqing Based on Geographic Data

本文以重庆两江新区地理国情监测成果及历史遥感影像为基础,提取新区2010、2012、2015、2017四个年度的建成区信息,结合新区历年来人口、地区生产总值等数据,开展新区自成立以来建成区空间扩张情况及其与人口、经济的协调发展分析,为新区科学管理提供数据及技术支撑。监测结果表明新区建成区扩张速率呈"先快速后平稳"的趋势,空间上建成区质心呈"东拓北进"的变化趋势。新区人口规模、经济增长与建成区的扩展趋势基本保持一致,三者具有较强的相关性。

Using the geographical conditions data and remote sensing image as the data source,this paper extracts the built-up area information of 2010,2012,2015 and 2017 of Chongqing Liangjiang New District,combined with the data of population and gross domestic product,in order to provide technical and data support for urban management,and analyzes the morphological characteristics of built-up area and expansion.The monitoring results show that the built-up area expansion rate of the new district is“first fast and then stable”.The centroid of the built-up area is a trend of“eastward and northward expansion”.The population size and economic growth are consistent with the expansion trend of the built-up area,which have a strong correlation.