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Abstract Agriculture as an important industry has important ecological protection and carbon sequestration functions to satisfy people’s needs of material. Fully exploiting the potential of carbon sequestration of agricultural income has important significance for green agricultural development and farmers’ income growth. The paper quantitatively calculated agricultural sources of carbon potential from 1993 to 2011， and constructed a coupling model of the net carbon sequestration of agricultural source and agricultural economic development， and then it could be found that from 1993 to 2011 the agricultural sources of carbon amount increased from 523.187 0 million tons to 660.737 7 million tons， an average annual increase of 1.38%， but the net carbon sequestration of agricultural sources was showing fluctuations in a decreasing trend from 366.917 2 million tons of 1993 reduced to 348.156 7 million tons， of which crop CO2 absorption occupied the main part， and CO2 absorption of economic crops occupied a small proportion in total agricultural CO2， but grew rapidly， and the average annual growth was 4.15%. From the view of factor impact， carbon sequestration of agricultural sources and cultivated area had little correlation， and crop yield and carbon sequestration of agricultural sources were positively correlated. The relation between agricultural carbon source purification and agricultural economic development was in a strong negative coupling state， and the coupling condition was not ideal. The correlation between agricultural output and agricultural net carbon sink was not strong， which was mainly caused by increased agricultural carbon emissions and the total agricultural output benefit resulting from agricultural production mode with high investment and high consumption. Finally， this article put forward countermeasures of reducing carbon emission and increosing carbon sink： strengthen government’s guidance from the fields of agricultural planning， production， and consumption； strengthen technical， financial and personnel support to reduce emissions and increase carbon sink，improve carbon sink capability through forest sink， farmlang sink， grassland sink， and integrated sink； speed up the development of carbon market trading system and market leverage to promote agricultural emissions reduction and growth.
Key words agriculture； carbon sink； coupling analysis； emission reduction and sink enhancement
推荐访问： 耦合 估算 中国农业 经济发展 农业
