Spatio-temporal Evolution of Ecosystem Service Value and the Eco-economic Harmonious Development in Fuzhou Metropolitan Area,China
Quantitative analysis of the evolution of regional ecosystem service value(ESV)and spatial differentiation factors,and study on the characteristics of development of eco-economic harmony and consistency are helpful to promote the improvement of ecological functions of urban agglomerations and metropolitan areas.Taking Fuzhou metropolitan area as an example,based on remote sensing image data of 2001,2010 and 2020,combined with GIS spatial visualization analysis,the optimized ESV assessment model,gravity center model,coefficient of variation,harmony index and consistency index,were adopted to measure the evolution of ESV of Fuzhou metropolitan area;secondly,its spatio-temporal harmony evolution characteristics with economic development were analyzed;finally,some suggestions on the eco-economy harmony development strategy of Fuzhou metropolitan area were provided.The results show that ① the whole ESV of Fuzhou metropolitan area decreases first and then increases from 2001 to 2020;thereinto,Fuzhou and Putian first decrease and then increase,while 4 counties of Ningde and 3 counties of Nanping continue to increase;② the proportion of primary industry,annual average temperature and vegetation coverage rate have higher explanatory power for the spatial differentiation of ESV;limited by the original natural conditions,the spatial differentiation of ESV in Fuzhou metropolitan area is easily expanded by human interference;③ the ecosystem service center of gravity of Fuzhou,Putian and 4 counties of Ningde has a trend of constantly moving away from the economic center of gravity,and the two are gradually separated;④ there is no obvious conflict in the harmonious development of eco-economy in Fuzhou metropolitan area,but there are a large number of regions where the growth rate of ESV lags behind the GDP growth rate,and the economic development is under increasing ecological pressure.In the past 20 years,Fuzhou metropolitan area has formed a pattern of coexistence of economic agglomeration in Fuzhou,Putian and Ningde urban areas,and ecological agglomeration in 6 counties,the middle of Fuzhou metropolitan area.
eco-economyland utilizationecosystem service valuecorrection of equivalent factorharmony indexconsistency indexgravity center modelFuzhou metropolitan area