Spatio-temporal evolution and coordination influence of coupling coordination between new urbanization and ecological resilience in Fenhe River Basin
This paper constructs a"Size-Density-Morphology"basin ecological resilience evaluation system,using the coupled coordination model to estimate and analyze the spatial and temporal evolution characteristics of coupled coordination between new urbanization and ecological resilience in counties of the Fenhe River Basin from 2000 to 2021,and the spatial autocorrelation model is used to reveal the spatial clustering characteristics of coupled coordination.The coordination influence index is introduced to characterize the effect and the degree of role of each subsystem on the overall coupling coordination degree.The results show that:(1)From 2000 to 2021,the level of new urbanization in counties of the Fenhe River Basin had been improved slowly,the"core-edge"spatial pattern was significant,and the comprehensive index of ecological resilience had been decreasing continuously.The high-value areas in the spatial pattern are distributed in an"S"shape,and the low-value areas are concentrated in the central valley.(2)The coupling coordination degree is characterized by a downward trend from"mild coordination"to"mild imbalance".Affected by the location advantages and ecological endowment factors,the spatial distribution of the coupling coordination degree showed a"ring"distribution pattern of increasing from the core to the edge,and the spatial agglomeration trend is significant.(3)In the new urbanization,the population,space,society and green subsystems have a reverse blocking effect on the integrated coupling coordination degree,while the influence of economic urbanization on the comprehensive coupling coordination is first blocked and then promoted,and the ecological resilience subsystem has a reverse blocking effect on the integrated coupling coordination degree,with the scale and density toughness blocking increased and the morphological toughness blocking degree weakened.(4)The"Matthew effect"of the unbalanced development of new urbanization level is more obvious,and the external supply of energy in resource-based counties forces the density toughness to drop significantly.The ecological resilience is restricted by ecological resources,and the spatial evolution is path-dependent.The Fenhe River Basin has both the universal characteristics of urbanization,which has negative effects on the ecology,and the particularity of slow industrial transformation in resource-developing counties,and the significant lag of ecological construction compared with urbanization.
new urbanizationecological resiliencecoupled coordinationcoordinated influ-enceFenhe River Basin
万方数据
维普
