洞庭湖平原区农业生态系统的能值分析与可持续发展  

Economic System Emergy Analysis and Sustainability Development of Agro-Ecosystem of Dongting Lake District in Hunan Province

作　　者：杨灿[1,2] 朱玉林[1,3] 李明杰[1] 

机构地区：[1]中南林业科技大学农林经济研究中心,中国湖南长沙410004 [2]湖南绿色发展研究院,中国湖南长沙410004 [3]中南林业科技大学经济学院,中国湖南长沙410004

出　　处：《经济地理》2014年第12期161-166,共6页Economic Geography

基　　金：国家社会科学基金项目(11BJY029);湖南省软科学重点项目(2011ZK2046);湖南省哲学社会科学基金项目(13YBA363);湖南省林业厅科研项目(湘财农指2014-68)

摘　　要：利用能值分析理论对湖南洞庭湖平原区2007—2011年农业生态系统的能值投入和产出状况、环境承载力和生态系统运行效果进行描述、分析,在此基础上对该区域农业生态系统的运行特征和可持续发展状况作出评价。结果显示:该区域农业生态系统能值产出率相对较高,可持续发展能力相对较强,但工业辅助能值的增加对生态环境造成了较大压力。因此,应调整其能值投入、产出结构,大力发展高效生态农业,加大农业科技的研究和推广力度,促进其农业可持续发展。In order to improve the level of agricultural productivity in Dongting Lake District, promote the sustainable development of agricultural ecological system, The input-output condition, environmental load of the agro-ecosystem and work efficiency in the Dongting Lake District in 2007-2011 were systematically assessed based on the theory and method of emergy analysis.Results shows that the agricultural ecosystem of Dongting Lake District emergy yield ratio is relatively high, the sustainable development ability is relatively strong; but the industrial auxiliary energy values increase caused greater pressure to the ecological environment. The Dongting Lake District should optimize its input- output structure of emergy to improve the extension of agricultural science and technology research, Vigorously develop highefficiency ecological agriculture and promote the sustainable development of agriculture.

关 键 词：农业生态系统 能值分析 可持续发展 洞庭湖平原区 湖南 

分 类 号：F327[经济管理—产业经济]