摘要：
[Objective] To analyze the efficiency of Hunan agro-ecosystem in 1980- 2010. [Method] This paper adopts the emergy methods to evaluate the emergy input and output. [Result] The growth of total emergy input was mainly caused by the auxiliary factors in this phase. The proportion of the nonrenewable purchased emergy input to the total auxiliary emergy input increased from 21.80% in 1980 to 33.04% in 2010. In 1980-2010 the total emergy output of the system increased by 2.43 times, the proportions of the stock farming emergy output and fishery emergy output to the total emergy output increased sharply, while those of the planting emergy output and forestry emergy output showed a considerable decline. [Conclusion] The emergy yield ratio of this system was improved but its sustainability was worrying.
作者机构：
[Lin M.; 侯茂章; 王茂溪; 李晓敏] Economics School of Central, South University of Forestry and Technology, Changsha 41 0004, China;Economy of Agriculture and Forestry Research Center of Central, South University of Forestry and Technology, Changsha 410004, China;[龙雨孜; 朱玉林] Economics School of Central, South University of Forestry and Technology, Changsha 41 0004, China, Economy of Agriculture and Forestry Research Center of Central, South University of Forestry and Technology, Changsha 410004, China
通讯机构：
[Zhu, Y.-I.] E;Economics School of Central, South University of Forestry and Technology, China
作者机构：
[李明杰] School of Economy, Central South University of Forestry and Technology, Changsha 410004, China;Economic Research Center for Agriculture and Forestry, Central South University of Forestry and Technology, Changsha 410004, China;[朱玉林] School of Economy, Central South University of Forestry and Technology, Changsha 410004, China, Economic Research Center for Agriculture and Forestry, Central South University of Forestry and Technology, Changsha 410004, China
通讯机构：
[Zhu, Y.-L.] S;School of Economy, , Changsha 410004, China
作者机构：
School of Economy, Central South University of Forestry & Technology, ChangSha, Hunan, P.R.China, 41;Economic Research Center for Agriculture and Forestry, Central South University of Forestry & Techno
会议名称：
The 3rd International Institute of Statistics & Management Engineering Symposium(2010 国际统计与管理工程研讨会 IISMES)
会议时间：
2010-07-24
会议地点：
威海
会议论文集名称：
The 3rd International Institute of Statistics & Management Engineering Symposium(2010 国际统计与管理工程研讨会 IISMES)论文集
关键词：
regional economy;sustainable development capacity;gray comprehensive evaluation
摘要：
Based on relevant statistical data for 2008, with the method of Gray Comprehensive Evaluation, this paper has sorted and analyzed the capacity for regional sustainable development of Hunan Province. The results showed that the overall level of the capacity for regional sustainable development is not high in Hunan Province, and the great differences are existed between different cities and areas.
