Based on changes in the coupling relationship of ecological agro-system of commodities (EASC) under "Grain for Green Project", the coupling evolution of agricultural eco-economic system in Ansai County was analyzed by utilizing the coupling degree model. The results showed that the coupling evolution of EASC could be compartmentalized into 4 phases: coordinated development, worn development, stressed degeneration, and reconversion. The composite evaluation index of agricultural eco-economic system in Ansai ...
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