Influences of large-scale farming on carbon emissions from cropping:Evidence from China  

作　　者：LI Ya-ling YI Fu-jin YUAN Chong-jun 

机构地区：[1]College of Economics and Management,Anhui Agricultural University,Hefei 230036,P.R.China [2]China Academy for Rural Development,Zhejiang University,Hangzhou 310058,P.R.China [3]School of Public Affairs,Zhejiang University,Hangzhou 310058,P.R.China [4]College of Economics and Management,Nanjing Agricultural University,Nanjing 210095,P.R.China

出　　处：《Journal of Integrative Agriculture》2023年第10期3209-3219,共11页农业科学学报（英文版）

基　　金：the Natural Science Foundation of China–Bill&Melinda Gates Foundation Joint Agricultural Research Project(NSFC–BMGF;72261147758);the National Social Science Foundation of China;the China Resource,Environmental and Development Research Institute,Nanjing Agricultural University,China;the Research Funding Project of Anhui Agricultural University,China(rc402108)。

摘　　要：Reducing agricultural carbon emissions is important to enable carbon emission peaking by 2030 in China.However,China's transformation towards large-scale farming brings uncertainties to carbon emission reduction.This study quantifies the carbon emissions from cropping based on life cycle assessment and estimates the effects of farm size on carbon emissions using a fixed effects model.Furthermore,the variations of the carbon emissions from cropping driven by the changes in farm size in future years are projected through scenario analysis.Results demonstrate an inverted U-shaped change in total carbon emission from cropping as farm size increases,which is dominated by the changes in the carbon emission from fertilizer.Projections illustrate that large-scale farming transformation will postpone the peak year of total carbon emission from cropping until 2048 if the change in farm size follows a historical trend,although it is conducive to reducing total carbon emission in the long run.The findings indicate that environmental regulations to reduce fertilizer usages should be strengthened for carbon emission abatement in the early stage of large-scale farming transformation,which are also informative to other developing countries with small farm size.

关 键 词：farm size carbon emission agricultural transition 

分 类 号：F323[经济管理—产业经济] X322[环境科学与工程—环境工程]