Decoupling Relationship Between Carbon Footprints of Farmland Ecosystems and Economic Growth in Anhui Province
Anhui Province is one of the major grain producing areas in China.To quantitatively evaluate the relationship of carbon emissions,carbon absorption,and carbon footprints of farmland ecosystems with agricultural economic growth,this paper used the statistical data of agricultural input and output in Anhui from 2001 to 2021 and the carbon emission coefficient method to calculate the carbon sources,carbon sinks,and carbon footprints of farmland ecosystems in this province.The decoupling model was adopted to estimate the decoupling state between carbon footprints and agricultural economic growth.The results showed that the carbon emissions of farmland ecosystems in Anhui first increased and then decreased during 2001-2021.The carbon emissions from land tillage and fertilizer accounted for a large proportion among all carbon sources.The amount of carbon absorption generally presented an increasing-decreasing-increasing trend.The overall carbon footprint showed a declining trend with fluctuations,which was lower than that in the actual cultivated land area during the same period,indicating that the farmland ecosystems in Anhui had surplus carbon.In general,the carbon footprints of farmland ecosystems and agricultural economic growth in Anhui were decoupled,while the possibility of relative re-coupling could not be excluded.
farmland ecosystemcarbon emissioncarbon absorptioncarbon footprintdecoupling model
万方数据
维普
