摘要
[目的]探究21世纪以来中国不透水面与社会经济耦合协调发展动态,解析景观城市化与社会经济发展的矛盾与协同的时空格局,为开展差异化的区域水土保持和城乡发展策略制定提供科学依据。[方法]运用脱钩模型和耦合协调度模型开展2000—2018年中国355个市域单元的不透水面与社会经济耦合协调发展的时空变化特征。[结果]①中国不透水面持续扩张与社会经济发展整体上基本不同步,存在显著的区域差异。2000—2018年不透水面扩张总体上落后于经济发展,但东北和华北地区不透水面扩张速度相较于经济增长速度经历了从落后到超前的过程,弱脱钩类型占比下降了38.59%,负脱钩型占比上升了30.70%。不透水面与人口的耦合关系中,全国市域尺度的不透水面扩张基本超前于人口增长,其中华中、西北和西南等地最为显著,导致强负脱钩型占比增加了23.94%。②2000—2018年不透水面与社会经济的耦合协调度随不透水面变化率的上升而降低。在增长25%以下的不透水面变化率区间内,不透水面—经济与不透水面—人口的耦合协调关系,表现为显著的拮抗关系。[结论]21世纪以来中国景观城市化过程与社会经济的动态关系趋向不协调,未来应严格控制城乡不透水面向外蔓延,提高土地集约利用程度,促进城乡可持续发展。
[Objective]The dynamics of the coupling and coordinated development of impervious surface area(ISA)and socio-economic development in China since the 21st century was explored,and the spatiotemporal pattern of the contradictions and synergies between landscape urbanization and socio-economic development was analyzed,in order to provide a scientific basis for soil and water conservation,and the formulation of differentiated regional urban and rural development strategies.[Methods]The decoupling model and coupling coordination degree model were used to investigate the spatiotemporal variation characteristics of ISA and socio-economic coupling coordinated development in 355 prefectures in China from 2000 to 2018.[Results]①The continuous expansion of ISA in China was inconsistent with the socio-economic development,which showed a significant regional difference.From 2000 to 2018,in the relationship of ISA-economy in each prefecture,the ISA growth generally lagged behind the economic development,except for northeast and north of Chinese prefectures experienced a process from lagging to overtake.Meanwhile,the proportion of weak decoupling type decrease by 38.59%and the proportion of negative decoupling type increased by 30.70%.In the relationship of ISA-population in each prefecture,ISA expansion rate was ahead of the population growth in most of prefectures,especially in central,northwest and southwest of Chinese prefectures.Moreover,the proportion of strong negative decoupling type increased by 23.94%.②From 2000 to 2018,the degree of coupling coordination in ISA-economy-population decreased,while the expansion rate of ISA increased.As shown in the triangle diagram,the coupling coordination relationship between ISA-economy and ISA-population showed an antagonistic relationship,in a special region of ISA below 0.25.[Conclusion]Since the 21 st century,the dynamic relationship among ISA-economy-population in China tended to be uncoordinated.In the future,it is necessary to strictly control the outward spread of imperv
作者
冯智涛
刘珍环
Feng Zhitao;Liu Zhenhuan(School of Geography and Planning, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai), Zhuhai, Guangdong 475004, China)
出处
《水土保持通报》
CSCD
北大核心
2021年第6期257-264,281,共9页
Bulletin of Soil and Water Conservation
基金
南方海洋科学与工程广东省实验室(珠海)创新团队建设项目“海洋人文地理创新团队项目”(311021018)。
关键词
不透水面
社会经济
脱钩模型
耦合协调度模型
中国
impervious surface area
socioeconomic development
decoupling model
coupling coordination degree model
China
