水土保持通报2012，Vol.32Issue(3)：290-295,6.
长株潭城市群农业生态系统的能值分析及可持续发展评价
Emergy Analysis of Agro-economic System and Sustainable Development Assessment in Changsha-Zhuzhou-Xiangtan Urban Agglomeration
摘要
Abstract
The input-output condition,work efficiency and environmental load of the agro-ecosystem in the Changsha—Zhuzhou—Xiangtan urban agglomeration were systematically assessed based on the theory and method of emergy analysis.Results showed that the nonrenewable supplemental emergy dominated over the agro-ecosystem emergy input in the urban agglomeration and thus caused a high cost of the production.The majority of emergy output was forestry and animal husbandry,while crop cultivation and fishery had a relatively low percentage.The environment load ratio was lower compared with developed countries and regions and thus the agro-ecosystem had a large development space.From the perspective of emergy analysis,the Changsha—Zhuzhou—Xiangtan urban agglomeration should optimize its input-output structure of emergy to improve the quality of the emergy products,to keep its sustainable and healthy development and to establish an agro-ecosystem with multi-level,high function and low emergy consumption.关键词
能值分析/农业生态系统/演替/长株潭城市群Key words
emergy analysis/agro-ecosystem/succession/Changsha-Zhuzhou-Xiangtan urban agglomeration分类
生物科学引用本文复制引用
周子英,段建南,杨君,余志标..长株潭城市群农业生态系统的能值分析及可持续发展评价[J].水土保持通报,2012,32(3):290-295,6.基金项目
湖南省研究生科研创新项目“基于能值理论的长株潭城市群农业生态系统演替分析” （）
湖南省科技厅资助项目“长沙市土地利用结构信息熵变化及其动因分析” （）
