敦化市城市规模和效益协调度研究  

Coordination degree of urban scale and benefit in Dunhua City

作　　者：徐铭崇 李淑杰[1] 张瀛 XU Mingchong;LI Shujie;ZHANG Ying(College of Earth Sciences,Jilin University,Changchun 130061,China)

机构地区：[1]吉林大学地球科学学院,长春130061

出　　处：《世界地质》2022年第2期428-436,共9页World Geology

基　　金：国家自然科学基金项目(71303006);敦化市建设用地节约集约利用评价项目(20200520)联合资助

摘　　要：选取吉林省敦化市2010、2014和2018年三期Landsat系列卫星影像,采用监督分类和目视解译相结合的方法提取和对比城区用地信息,得到敦化市城市用地数量和空间特征,通过构建协调度以及灰色关联度模型,分析敦化市城市规模和用地效益的发展情况及影响因素。结果表明,敦化市城市规模趋于稳定,经济发展和城市用地之间协调性显著增强,人口发展和城市用地之间不协调;城市规模增长和城市效益提升呈现同向发展态势,整体协调发展程度增强,但仍处于勉强协调阶段;敦化市城市用地规模和效益受到自然环境、社会经济和政策规划等影响,其中公共财政支出是敦化市城市规模和效益发展的最主要的推动因素。Landsat series satellite images of Dunhua City of Jilin Province in 2010,2014 and 2018 were selected.The quantity and spatial characteristics of urban land in Dunhua City are obtained by extracting and comparing urban land use information by combining supervised classification and visual interpretation.By constructing the model of coordination degree and grey correlation degree,the authors analyze the development situation and influencing factors of urban scale and land use benefit in Dunhua City.The results show that the urban scale of Dunhua tends to be stable,the coordination between economic development and urban land use is significantly enhanced,but the coordination between population development and urban land use is not coordinated.The growth of urban scale and the improvement of urban benefit are developing in the same direction,and the overall coordinated development degree is enhanced,but it is still in the stage of barely coordinated.The scale and benefit of urban land use in Dunhua City are influenced by natural environment,social economy and policy planning,among which public financial expenditure is the most important driving factor.

关 键 词：城市规模 城市用地效益 协调度 遥感 敦化市 

分 类 号：P237[天文地球—摄影测量与遥感] F292[天文地球—测绘科学与技术]