Spatial heterogeneity analysis of ecosystem service value under future climate scenarios:A case study of Ke Keya
Utilizing the CMIP6 future scenario,this study conducted an analysis of the spatiotemporal trends of water conservation,carbon sequestration,oxygen release and soil conservation value in the study area.The FLUSH model,InVEST model and CASA model were coupled for this analysis.Furthermore,spatial heterogeneity analysis of the ecosystem service value in the study area was performed using R language and the GeoDa model.The results revealed that the water conservation value per unit area was 173 400 yuan/km2 and 142 800 yuan/km2 under the SSP245 and SSP585 scenarios,respectively.Meanwhile,the carbon sequestration and oxygen release values per unit area were 1 071 300 yuan/km2 and 1 017 500 yuan/km2,respectively.The soil conservation value per unit area was 401 800 yuan/km2 and 446 100 yuan/km2,respectively.In conclusion,under the future scenario,there is a general increase in the value of ecosystem services,with an even greater increase under the SSP245 scenario.The overall Moran's I index demonstrated a fluctuating and increasing trend.Spatially,there was high aggregation of soil conservation and water conservation functions,while carbon sequestration and oxygen release functions showed relatively poor aggregation.Additionally,there was higher ecosystem service value aggregation in the northern part of the study area.The study area displayed a synergistic relationship in the ecosystem services,which showed an increasing trend under the future scenario.It is of significant importance to elucidate the interdependencies between ecological subsystems and establish a more comprehensive metabolic cycle for the stability and sustainable development of ecosystems.
Ecosystem service valueInVEST modelfuture climate scenariosKe Keya
NETL
NSTL
万方数据
