生态文明建设目标下的广东省城市土地集约利用时空演变分析  

Spatiotemporal Evolution of Urban Land Intensive Utilization in Guangdong Province Aiming at Ecological Civilization Construction

作　　者：张姣 张光宏[1] Zhang Jiao;Zhang Guanghong(School of Business Administration,Zhongnan University of Economics and Law,Wuhan,Hubei 430073,China)

机构地区：[1]中南财经政法大学工商管理学院,湖北武汉430073

出　　处：《水土保持通报》2022年第3期233-238,共6页Bulletin of Soil and Water Conservation

基　　金：国家社科基金项目“人口—土地—产业城镇化协调发展机制与优化路径”(16BGL154)。

摘　　要：[目的]探究生态文明建设目标下广东省城市土地集约利用水平的时空格局特点,促进土地可持续及集约利用。[方法]利用熵值法确定权重测度土地集约利用水平指数,然后利用核密度估计和空间自相关分析方法分析其时空格局分布特点。[结果](1)时序方面,根据最佳自然断裂点方法将广东省土地集约利用水平值划分为Ⅰ,Ⅱ,Ⅲ,Ⅳ4个级别。在2012—2019年期间,该区土地集约利用水平值呈现上升趋势。广东省各地级市城市之间土地集约利用水平具有一定差距,但差距在缩小。(2)空间方面,土地集约利用水平具有集聚的特点,在空间上的集聚态势分别为低—低、低—高、高—高3种类型的区域。高值区域主要分布于珠三角部分区域,低值区分布在粤北等区域,存在明显的空间正自相关性。同时区域间的相关性表现出整体减弱的特点。(3)广东省各城市土地集约利用水平在时序上存在差距,但城市土地集约利用水平得到提升。部分城市土地集约利用水平在空间上具有集聚的特点且存在关联性。[结论]广东省各城市应朝着因地制宜的方向发展。珠三角区域应继续优化产业结构,而粤西、粤北等地区则要在政府政策的帮扶下加强区域间的联系,进而缩小区域差距。[Objective] Spatial and temporal patterns of intensive urban land use in Guangdong Province were studied in order to promote sustainable and intensive land use to facilitate the goal of ecological civilization construction.[Methods] An index of intensive land use was determined by using the entropy method.Spatial and temporal patterns were then analyzed by kernel density estimation and spatial autocorrelation analysis.[Results](1) In terms of time series,based on the best natural breaking point method,the intensive land use level was divided into four levels:Ⅰ,Ⅱ,Ⅲ,and Ⅳ,respectively,indicating increasing levels of intensive land use during 2012—2019.A definite gap in the level of intensive land use among cities in Guangdong Province was observed,but the gap was narrowing.(2) In the spatial aspect,the intensive land use level had the characteristics of agglomeration.The spatial agglomeration situation was respectively low-low,low-high,and high-high type regions.High value areas were mainly located in parts of the Pearl River delta,and low value areas were located in the north of Guangdong Province.(3) The level of intensive urban land use differed over time,but the level of intensive urban land use was improved.In space,the level of intensive urban land use had the characteristics of agglomeration and correlation.[Conclusion] Cities should develop in accordance with local conditions.The Pearl River delta region should continue to optimize its industrial structure,while the Western and Northern Guangdong regions should,with the help of government policies,strengthen inter-regional linkages in order to narrow regional gaps.

关 键 词：生态文明建设 土地集约利用 核密度估计 空间自相关 广东省 

分 类 号：P301.24[天文地球—地球物理学]