Spatiotemporal Evolution of Carbon Stock From Land Use Changes in Kunming Based on In VEST-PLUS Model
The impact of land use on CO2 in terrestrial ecosystems is second only to fossil fuel combustion.Based on the land use data of Kunming City from 2000 to 2020,this paper uses the PLUS model to predict the land use situation in 2060,and then combines the InVEST model to obtain the spatial and temporal distribution of carbon storage,and finally uses the Moran's I index and Getis-Ord Gi*to analyze the spatial and temporal distribution characteristics of carbon storage at the grid scale.The results showed that:① From 2000 to 2020,the land use change in Kunming City showed the characteristics of"the expansion of construction land area and the shrinkage of ecological land types to varying degrees",and there were differences in land use under different scenarios in the future.② From 2020 to 2020,the total carbon storage in Kunming City decreased by 98.5 × 104t,and the carbon storage under different development scenarios in 2060 showed a decreasing trend compared with 2020,and the carbon storage in each district of Kunming City was correlated with the drastic land use changes.③ The spatial distribution of carbon storage in Kunming City shows a certain aggregation phenomenon,forming the structural distribution characteristics of"high value to the north and low value to the south"and"low value agglomeration area to the surrounding areas around Dianchi".
land use changescarbon storagePLUS modelInVEST modelKunming City
万方数据
维普
