成渝城市群土地利用转型与经济发展的耦合协调性研究

Coupling and Coordination of Land Use Transformation with Economic Change in Chengdu-Chongqing Urban Agglomeration,China

随着城镇化、工业化快速推进,成渝城市群土地利用转型与经济发展的矛盾问题日益显现,对二者互动关系与存在问题的探讨,现有研究尚无法给出系统的解答和经验证据。本文以成渝城市群为研究区域,基于1990年、2000年、2010年及2018年四期土地利用现状遥感监测数据,从三生空间角度出发,利用转移概率矩阵、空间分析模型对研究区土地利用转型及其与经济发展的耦合协调性进行研究,揭示了成都城市群和重庆城市群土地利用转型与经济发展的耦合协调关系。结果表明:(1)1990—2018年,研究区转型发展过程中生产用地和生态用地共计分别减少1733.43 km^(2)和520.12 km^(2),生活用地增加2389.30 km^(2);(2)土地利用转型最大的是工业生产用地,转型最小的是绿色生态用地,生产用地属于减少型地类,生活用地和生态用地属于增加型地类;(3)邻近"双核"的中小城市耦合协调度大于远城区,"双核"及其广大腹地地区一批中小城市耦合协调建设发展趋势明显,同步型与经济发展滞后型两种类型占据了大部分城市;(4)成都城市群和重庆城市群的土地利用转型与经济发展的耦合协调类型发展趋势大致相似,成都城市群耦合协调水平整体略高于重庆城市群。本研究可为区域国土空间格局优化与经济社会可持续发展提供一定理论和实践参考。

With the rapid promotion of urbanization and industrialization,the contradiction between the land use transformation and the economic development in the urban agglomeration of Chengdu-Chongqing has been increasingly intensified.Current researches cannot provide systematic and empirical evidences to support a fully discuss to the interaction between the land use transformation and the economic development for Chengdu-Chongqing agglomeration.Taking the urban agglomeration of Chengdu-Chongqing as study area based on the data of the land use monitored by using the remote sensing images in 1990,2000,2010 and 2018,the coupling and the coordination of the land use transformation and the economic development in this area were studied using transition probability matrix and spatial analysis model from the perspective of production-living-ecological space.It revealed the coupling and the coordination relationship between the land use transformation and the economic development in the urban agglomerations of Chengdu and Chongqing.The results show that:(1)From 1990 to 2018,the total productive land and the ecological land decreased by 1733.43 km^(2) and 520.12 km^(2),respectively.The living land increased by 2389.30 km^(2).(2)The largest land use transformation was the industrial productive land,while the smallest one was the green ecological land.The productive land belonged to the reduced land,while the living and ecological lands used belonged to the increased land.(3)The coupling and the coordination degree of the small and medium-sized cities adjacent to the"dual core"were larger than those of far urban areas.The development trend of the coupling and the coordination construction of a number of small and medium-sized cities in the"dual core"and its vast hinter land were quite obvious.Most cities were occupied by two types of construction,i.e.,the synchronized type and the type that develops with the lagging economy.(4)The development trend of the land use transformation and the economic development in the urban agglomerations of Chengdu and Chongqing were roughly similar.The overall level of the coupling and the coordination of the urban agglomeration of Chengdu was slightly higher than that of Chongqing.This study can provide theoretical and practical reference for the optimization of spatial pattern,regional land and sustainable development of economy and society.