Impact of farmland use transition on farmland use carbon emissions and its spatial spillover effects under the double carbon background:A case study of Huang-Huai-Hai Plain
Impact of farmland use transition on farmland use carbon emissions and its spatial spillover effects under the double carbon background:A case study of Huang-Huai-Hai Plain
Farmland use transition(FUT)provides a novel approach to address global farmland use carbon emissions(FUCE).This paper employs various modeling techniques,including the entropy method,spatial autocorrelation models,and spatial econometric models,using Huang-Huai-Hai Plain as a case study.It investigates the spatial impact of FUT on FUCE under the double carbon background of China.The results reveal the following:(1)In Huang-Huai-Hai Plain,there is a significant positive spatial autocorrelation among FUCE,FUT,and their specific forms.FUCE exhibit a spatial pattern characterized by"high in the east and low in the west"and"high in the north and low in the south".(2)The dominant farmland use transition(DFUT)can aggravate FUCE in both the local county and neighboring counties,while the recessive farmland use transition(RFUT)lead to carbon reduction effects in both local and nearby regions.Quantitative farmland use transition(QFUT),spatial structure farmland use transition(SSFUT),and production function farmland use transition(PFFUT)all have positive direct effects on farmland use carbon emissions,as well as discernible spatial spillover effects.Conversely,both living function farmland use transition(LFFUT)and ecological function farmland use transition(EFFUT)contribute to carbon emissions reduction.This study suggests that a prudent approach should be taken to promote moderately scaled farmland operations,adjust the spatial distribution of farmland,and develop modern,low-carbon agriculture.Tailoring farmland use transitions to local conditions is crucial,harnessing regional comparative advantages and fully realizing the carbon reduction potential of RFUT,thereby contributing to the achievement of dual carbon goals.
关键词
双碳目标/耕地利用转型/耕地利用碳排放/空间计量模型/空间溢出效应/黄淮海平原
Key words
double carbon goals/farmland use transition(FUT)/farmland use carbon emissions(FUCE)/spatial econometric model/spatial spillover effect/Huang-Huai-Hai Plain
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