Spatio-temporal changes and influencing factors of land use carbon emissions in Chaohu Lake Basin
This paper was based on nighttime light data to estimate carbon emissions from land use in the Chao-hu Lake Basin.It analyzed the spatio-temporal distribution characteristics and spatial correlations of land use carbon emissions at the county level,investigating the mechanisms of influencing factors.The results indica-ted that from 2012 to 2018,land use features in Chaohu Lake Basin were significant,primarily dominated by cultivated land,followed by construction land and forest land,with limited water bodies,grassland,and un-used land.During the same period,carbon sources in Chaohu Lake Basin were mainly concentrated in the ur-ban area of Hefei City,Feidong County,and Feixi County,while carbon sinks were mainly concentrated in Shucheng County,Chaohu City,and Lujiang County.Overall,net carbon emissions from land use showed an increasing trend,and there was a significant positive spatial correlation.Regional investments,economic de-velopment,population size,and land use structure had a substantial impact on land use carbon emissions in Chaohu Lake Basin,with the interactive effects of paired factors exceeding those of individual indicators.The research findings can provide references for formulating rational regional carbon emission optimization strate-gies.
land use carbon emissionsnighttime light remote sensingspatio-temporal changesinflu-encing factorsChaohu Lake Basin