汉江流域粮食生产碳排放与经济发展的脱钩关系研究OACSTPCD

The Hanjiang River Basin is rich in water resources and is an important grain-producing area in China.It is of great significance to study the carbon emission of grain production in the Hanjiang River Basin to promote the green,high-quality,and sustainable development of agriculture.The emission coefficient method was used to estimate the total carbon emissions and structure of grain production in the Hanjiang River Basin from 2008 to 2021,and the decoupling relationship between carbon emissions and economic development was analyzed by the Tapio decoupling model.It was found total carbon emissions showed an overall upward trend,although there was a certain annual fluctuation.Among agricultural production factors,the proportion of carbon emissions from land plowing and fertilizer use was larger.The Hanjiang River basin as a whole presented a weak decoupling state,with strong decoupling in the upper reaches and weak decoupling in the lower reaches.There were temporal and spatial differences between economic development and carbon emissions from grain production in the counties of the Hanjiang River Basin,with negative decoupling in most of the counties from 2014 to 2017.The carbon emission reduction effect of grain production in the Hanjiang River Basin was remarkable,the grain production capacity was effectively improved,and the agricultural economic development also achieved certain results.