中国城乡建设用地时空特征与耦合协调分析
Spatio-temporal Pattern and Coupling Coordination of Urban-rural Construction Land in China
刘晴晴 1陈万旭 1张沙沙 1卞娇娇 1黄春波 1曾杰1
作者信息
- 1. 中国地质大学(武汉)区域生态过程与环境演变湖北省重点实验室,武汉 430074
- 折叠
摘要
基于2000 年、2010 年和2020 年30m×30m分辨率土地利用遥感监测数据,对中国城乡建设用地变化状况进行分析,采用双变量空间自相关分析模型探测二者空间分布的时空关联与依赖特征,同时借助耦合协调以及脱钩模型,揭示城乡建设用地协调发展水平以及二者间的解耦关系.结果表明:(1)2000-2020 年中国城乡建设用地面积持续增加,耕地和草地的转入是城乡建设用地增加的主要来源.(2)城乡建设用地协调发展水平在时间上呈现先下降后上升的趋势,空间上则呈现出"东北高、西南低"的分布格局.(3)建设用地脱钩类型以城乡双增且城镇建设用地增速超前的弱脱钩为主;与2000-2010 年相比,2010-2020 年强负脱钩以及扩张负脱钩类型明显增多,这表明我国城镇建设用地的扩张总体超前于农村居民点.
Abstract
Based on the 30 m×30 m resolution land use remote sensing data of China in 2000,2010,and 2020,this study analyzed the spatio-temporal pattern and coupling coordination characteristics of urban-rural con-struction land in China.The bivariate spatial autocorrelation analysis model was used to explore the spatio-temporal correlation and dependence of the spatial distribution characteristics of urban-rural construction land.Concurrently,the coupling coordination and decoupling model was employed to reveal the coordinated development level of urban-rural construction land and the decoupling relationship between them.The findings were revealed as follows:(1)From 2000 to 2020,the area of urban-rural construction land in China continued to increase,with the transfer of cul-tivated land and grassland representing the primary source of this expansion.(2)The level of coordinated develop-ment of urban-rural construction land showed a downward and then upward trend over time,while the distribution pat-tern of high in the northeast and low in the southwest was shown in space.(3)The types of construction land decou-pling were mainly weak decoupling with both urban and rural growth and ahead of the growth rate of urban construc-tion land.Compared to 2000-2010,there were notably more strong negative decoupling and expansionary negative decoupling in 2010-2020,indicating that the development of urban construction land was ahead of rural settlements.
关键词
城乡建设用地/双变量空间自相关/耦合协调模型/脱钩分析Key words
urban-rural construction land/bivariate spatial autocorrelation/coupling coordination model/de-coupling analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据