商品型生態(tài)農(nóng)業(yè)論文：安塞縣商品型生態(tài)農(nóng)業(yè)系統(tǒng)耦合關(guān)系研究(編輯修改稿)
2024-08-31 14:52 本頁面
【文章內(nèi)容簡介】 duction and food production increased by % and % respectively.(2) Using the PSI and the GRA, the evolution of EAC was analyzed quantitatively. Results showed that: with the ecological niche of environment, agroresources and economic benefits soaring as well as agropractices plunging, there was a significant rise in the plex ecological niche of EASC from 1998 to 2008. Although the change of system evolution and its influencing factors pushed system into advance, the constraint on utilizing and exploiting vegetation resources blocked the further development of EASC by reducing agroresources utilization efficiency and the consistency between agropractices and resources.(3) Utilizing the CDM, the coupling evolution of EASC could be partmentalized into 4 phases: Coordinated Development, Worn Development, Stressed Degeneration, and Reconversion. In terms of Ansai County, it successively passed the Stressed Degeneration Phase, the Reconversion Phase and the Coordinated Development Phase from 1998 to 2008. Although it is currently at the Coordinated Development Phase, a potential crisis lies in the EASC for the inconsistency between agropractices and resources as well as vegetation resources lying idle in parts of Ansai County.(4) Exercising the SEM, the current coupling relationship of EASC was analyzed on the householdscale. Results showed that: as agroresources are utilized in low efficienc
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