摘要
基于时序Landsat影像采用城市组分指数(urban composition index,UCI)获取1988—2021年莆田市城区不透水地表分布图,综合分析莆田市城区不透水面的时空变化特征,探究其演化的相关驱动因素。结果表明:1988—2021年莆田市城区不透水面面积呈增长趋势,增加面积为127.42 km^(2),扩张速度由快变慢;空间分布为分散-聚集格局,主要扩张方向为东南沿海方向,以市中心为内核不断完善周边建设,以交通为轴向进行带状扩展。在政府政策引导和控制城市发展进程下,人口和经济的增长是莆田市城区不透水面扩张的决定性因素,地形和交通也有着一定的驱动作用。
Based on time-series landsat images and urban composition index(UCI),the urban impervious surface distribution of Putian City from 1988 to 2021 was obtained,and the spatial-temporal variation characteristics of impervious surface of Putian City were comprehensively analyzed,and the related driving factors of its evolution were explored.The results show that:From 1988 to 2021,the impervious surface area of Putian urban area increases to 127.42 km^(2),and the expansion rate decreases from fast to slow.The spatial distribution is“dispersion-aggregation”pattern,and the main expansion direction is the southeast coastal direction.With the downtown as the core,the surrounding construction is constantly improved,and the belt expansion is carried out along the traffic axis.Under the guidance and control of government policies,population and economic growth are the decisive factors for the expansion of urban impervious surface in Putian City,and terrain and traffic play a certain driving role.
作者
许承权
白雅晴
田玉刚
刘友文
XU Chengquan;BAI Yaqing;TIAN Yugang;LIU Youwen(Geography and Ocean School,Minjiang University,Fuzhou 350108,China;School of Geography and Information Engineering,China University of Geosciences,Wuhan 430078,China)
出处
《地域研究与开发》
CSSCI
北大核心
2023年第1期174-180,共7页
Areal Research and Development
基金
国家自然科学基金项目(41404008)
福建省自然科学基金项目(2020J01834)
福建省自然资源科技创新项目(KY-070000-04-2022-009)。
关键词
城市不透水面
长时序
UCI
莆田市
urban impervious surface
long time sequence
UCI
Putian City
