The Carbon Storage Evolution of Ecosystems and Driving Effects of Land Use in Guilin from 2010 to 2020
With the economic growth and the acceleration of urbanization,the disturbance of human activities to the ecological environment become more intense,resulting in increasingly obvi-ous ecological environmental problems,and society has paid more attention to ecological environ-mental security.This study selected three periods of land use data from Guilin in 2010,2015 and 2020,analyzed the situation of land use change by ArcGIS,calculated the ecosystem carbon storage of Guilin from 2010 to 2020 through InVEST model,and analyzed the impact of land use change on carbon storage change combined with land use transfer and change.The results showed that:(1)For-estland was the main type of land use in Guilin,whose area continued to account for more than 60%of the land area in Guilin from 2010 to 2020,and the land use change in Guilin from 2010 to 2020 was mainly manifested by the rapid expansion of construction land;(2)The total carbon storage of Guilin in 2010,2015 and 2020 were 2503.45×106 t,2493.36×106 t and 2490.56×106 t respectively,showing a decreasing trend year by year,and the carbon sequestration capacity of Guilin was re-duced;(3)Land use layout greatly affected the spatial distribution of carbon storage.There was a sig-nificant spatial variation pattern of carbon storage in Guilin,and the northwest and eastern regions had higher carbon storage overall;(4)Different land use types had different carbon sequestration ca-pacities.The carbon storage contribution of forestland,grassland,cultivated land,construction land,unused land and water area to the study area decreased successively.By analyzing the temporal and spatial evolution of ecosystem carbon storage in Guilin and the impact of land use change on ecosys-tem carbon storage,this paper provides scientific basis for Guilin's territorial spatial planning and land use adjustment.
Guilinland use changeInVEST modelecosystem carbon storage
国家科技期刊平台
NSTL
万方数据
