闽三角城市群生产-生活-生态时空格局演化与功能测度

区域在发展过程中能否实现生产-生活-生态(简称三生)空间的协调,已成为推进生态文明建设进程中亟需解决的重大问题。基于"三生"空间评价体系,以闽三角城市群为研究区,同时构建"三生"空间功能性指数,探讨了近15年来闽三角城市群"三生"空间时空分异格局、功能性水平分异及其动因。结果表明:(1)2000—2015年,闽三角城市群生产、生活空间均集中分布于东部沿海地区且呈扩张趋势,生态空间则集中分布于西部山地、丘陵地区且整体呈缩减变化态势;(2)闽三角城市群"三生"空间功能性水平存在一定的空间集聚性且整体呈降低趋势,功能指数(PLESI)大致以闽三角城市群大都市区的核心-边缘分界线为界划分为东部功能水平较低区(均值为1.96)和西、南部功能水平较高区(均值为2.32);(3)闽三角城市群"三生"空间协调性较差,其竞合、冲突主要由自然和人为双重因素叠加所致。结果旨在能够为未来闽三角城市群"三生"空间竞合格局演变提供预判依据,并为推进"三生"空间协调发展提供决策参考。

Research on the evolution of spatiotemporal patterns of production-living-ecological space in an urban agglomeration in the Fujian Delta region, China

In the process of ecological civilization construction, it is unclear whether regional development can realize the coordination of production-living-ecological space (PLES). Based on the evaluation of PLES in the urban agglomeration of the Fujian Delta region of China, a functional index (PLESI) was established to examine spatial disparities, differences of functional levels, and driving mechanisms behind changes over a recent 15-year period. The results showed that during 2000-2015, the production and living space in the urban agglomeration of the Fujian Delta region was concentrated in the eastern coastal areas with an expanding trend over time, while the ecological space was concentrated in mountainous and hilly areas with a shrinking trend. At the same time, the functional level of PLES in the urban agglomeration of the Fujian Delta had a certain spatial agglomeration, which appeared to be decreasing overall over time. As for PLESI, the core-periphery boundary of the urban agglomeration of Fujian Delta was roughly divided into an eastern zone with a lower functional level and a western and southern zone with a higher functional level. Finally, the PLES in the urban agglomeration of the Fujian Delta has poor coordination, and its cooperation-competition and conflict were mainly caused by natural and human factors. This study aimed to provide a prejudgment basis for the future evolution of cooperation-competition of production-living-ecological space in the urban agglomeration of Fujian Delta, as well as a reference for decisions to promote the coordinated development of production-living-ecological space.