Spatial and temporal differentiation of ecosystem service value and its influencing factors in Jiangsu
In the context of building ecological civilization,the study on the spatio-temporal differentiation of ecosystem service value(ESV)and its influencing factors can provide a basis for regional environmental protection and ecological restoration.Using the equivalent factor method,geographic detectors,and geographic weighted regression models,the spatio-temporal differentiation characteristics,influencing factors,and the spatial differentiation characteristics of the action intensity of each influencing factor of county level ESV in Jiangsu from 2000 to 2020 are analyzed.The results show that:(1)The overall ESV of Jiangsu showed an upward trend from 2000 to 2020,with an increase of 8.425 billion yuan over the past 20 years.In terms of space,the low value area and the medium-low value area were distributed in a concentrated and contiguous manner throughout the province,with the medium-high value area and the high value area mainly distributed in water area,while the median area showed a sporadic distribution trend.(2)The explanatory effect of socio-economic factors on ESV was higher than that of natural factors.There was a global negative correlation between population density,land reclamation rate,and ESV,while there was a global positive correlation between per capita arable land area,per capita income of urban and rural residents,and ESV.The intensity of the effect gradually weakened from south to north.In the future,strengthening wetland and farmland protection,optimizing industrial structure,and improving urban green space facilities are feasible measures to improve ESV.
ecosystem service valueinfluencing factorgeographic detectorgeographically weighted regressionspatio-temporal differentiation
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万方数据
