Land Use and Carbon Stock Changes in Taiyuan under Different Scenarios
Land use change has a significant impact on the carbon balance in urban ecosystems.Based on the law of land use change in Taiyuan City from 2000 to 2020,this study uses the CA-Markov model to predict the spatial pattern of land use in different scenarios in 2030,and uses the In VEST model to evaluate the carbon storage of Taiyuan City from 2000 to 2030.The results show that from 2000 to 2020,the construction land increased significantly,an increase of 339.265 km2,and the area of forest land increased by 96.707 km2;the area of water,cultivated land,grassland and unused land decreased by 13.333 km2,275.037 km2,146.073 km2 and 1.223 km2,respectively.From 2000 to 2020,the carbon storage in Taiyuan has decreased by 2 312 591.65 t.Different from the natural development scenario,under the ecological protection scenario,the forest land will increase slightly in 2030 compared with 2020,and the construction land will be effectively limited and expanded,both of which facilitated the generation of ecological effects under the ecological protection scenario.In 2030,the carbon storage under the ecological protection scenario is 1 760 959.397 t more than that under the natural development scenario.From the perspec-tive of land use changes,the increase in forest area is the main reason for the increase in carbon storage in the study area,and the carbon sequestration capacity is enhanced under the ecological protection scenario.This study will provide a scientific basis for land use structure adjustment and management in Taiyuan.
land use changecarbon stockIn VEST modelCA-Markov modelTaiyuan City
万方数据
维普
