重庆市生态系统生产总值与城镇化耦合协调关系及空间特征研究

Coupling Coordination Mechanism and Spatial-Temporal RelationshipBetween Gross Ecosystem Product and Urbanization in Chongqing

生态系统与社会经济系统之间存在着复杂的耦合关系,是地域综合体的有机组成.本研究以重庆市为研究区,通过测度2000-2019年20年间生态系统生产总值及城镇化水平变化,并结合耦合协调模型,探究二者之间的交互关系.结果表明:1)重庆市生态系统生产总值呈现上升趋势,但在空间分布上存在“东高西低”的差异;2)城镇化水平增长迅速,呈现“一核多点”的圈层结构,其中中心城区城镇化水平高,但渝东南、渝东北地区的后发优势明显;3)生态系统生产总值与城镇化水平整体的耦合协调度不断上升,从中度失调转变为中度协调,表明经济与生态的互动关系趋于良性;4)当前阶段下,稳定的生态系统是保障区域社会经济发展的必要条件,而城镇化高质量发展则是促进“社会-经济-生态”综合效益最大化的关键因素.

There are many complex dialectical relationships between the economy and ecology,which is a dynamic change system.This research measured the gross ecosystem product and urbanization level changes from 2000 to 2019 in Chongqing,at the same time,combined coupling coordination model,and analysis of Chongqing's interaction relationship between the economy and ecology were also processed.The results showed that,1)The gross ecosystem product in Chongqing was in an upward trend,in space,presenting the distribution differences that high in the East and low in the West;2)Urbanization had also increased rapidly,presenting circle structure in space,the central urban area was the inner circle,at meanwhile,southeast Chongqing and the northeast Chongqing have the obvious late-comer advantage;3)The gross ecosystem product and urbanization level change were in an upward trend in terms of coupling coordination,the main coupling coordination has changed from moderate maladjustment to moderate coordination,indicates that the interaction of economic and ecology has a benign relationship;4)In respect of the Chongqing's current coupling coordination stage,the ecological system status is a necessary condition to realize regional economic development,urbanization is a key element to realize the harmonious development of the economy and ecology.