2011•Hunan Agricultural SciencesRequires access
Emergy Analysis for Agricultural Eco-economic System in Hunan Province
Xiang Pingan
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Abstract
The operating status of agricultural eco-economic system in Hunan Province in 2008 was studied by using emergy theory and method,and the emergy index which can reflect system structure and functions and the sustainable developmental status of the system were analyzed deeply.The results showed that the agricultural eco-economic system in Hunan Province has low environmental contribution ratio and emergy self-sufficiency ratio and high economic emergy investment ratio,net emergy yield ratio,environment load ratio and emergy investment ratio,so its sustainable development performances were reasonable.To achieve the goal of sustainable development,the agriculture in Hunan Province should optimize emergy investment,reasonable utilization of auxiliary energy,expediting adjustment of structure,increase of net emergy yield ratio,decrease of environment load ratio,and strengthening construction of eco-environment.