环长株潭城市群建设用地扩张时空特征及其质量分析  被引量:1

Spatio-temporal characteristics and quality analysis of construction land around Changsha-Zhuzhou-Xiangtan urban agglomeration

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作  者:宁启蒙[1] 曾志伟[1] 王晓华 NING Qimeng;ZENG Zhiwei;WANG Xiaohua(College of Architecture and Urban Planning,Hunan City University,Yiyang,Hunan 413000,China)

机构地区:[1]湖南城市学院建筑与城市规划学院,湖南益阳413000

出  处:《湖南城市学院学报(自然科学版)》2023年第3期28-34,共7页Journal of Hunan City University:Natural Science

基  金:湖南省哲学社会科学基金项目(18YBA061)。

摘  要:探讨城市群建设用地扩张及其质量特征,对于构建高质量的城市群空间结构具有重要价值。以环长株潭城市群为研究对象,利用Landsat TM/ETM遥感数据,运用扩张强度指数、协调度模型和Tapio弹性脱钩模型对其建设用地时空演变和扩张质量进行多尺度分析,并运用Theil指数对其扩张质量的区域差异进行分析。结果表明:1)2000―2020年,环长株潭城市群建设用地面积持续扩大,阶段性特征显著,且空间分异格局明显。2)城市群整体建设用地与人口间的协调关系总体上处于不协调状态,但协调度的提升态势明显;都市圈尺度的人地协调关系的优化提升快于城市群整体。3)城市群整体建设用地与经济的脱钩关系总体上属于弱脱钩类型,且呈趋优趋势;都市圈尺度的脱钩耦合关系明显优于城市群整体。The study of the expansion of construction land and its quality characteristics of urban agglomeration is of great value for the construction of high-quality spatial structure of urban agglomeration.Taking the Changsha-Zhuzhou-Xiangtan urban agglomeration as the research object,this paper uses the Landsat TM/ETM remote sensing data,the expansion intensity index,coordination degree model and Tapio elastic decoupling model to analyze the spatial and temporal evolution and expansion quality of construction land,and it uses the Theil index to analyze the regional differences of expansion quality.The results show that:1)From 2000 to 2020,the construction land area around the Changsha-Zhuzhou-Xiangtan urban agglomeration continued to expand with significant stage characteristics and obvious spatial differentiation pattern.2)On the whole,the coordination relationship between the overall construction land and population of urban agglomeration is in a state of incoordination,but the improvement of coordination degree is obvious;The optimization of man-land coordination relationship in metropolitan area is faster than that of urban agglomeration as a whole.3)The decoupling relationship between construction land and economy of urban agglomeration belongs to the type of weak decoupling and tends to show a trend of optimization on the whole,and the decoupling relationship of metropolitan area scale is obviously better than that of urban agglomeration as a whole.

关 键 词:建设用地 高质量发展 多尺度 长江中游城市群 长株潭城市群 

分 类 号:TU984[建筑科学—城市规划与设计]

 

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