Studies of emergy flow in a compound agro-ecosystem in the Taihu Lake area, Jiangsu Province, China

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	Studies of emergy flow in a compound agro-ecosystem in the Taihu Lake area, Jiangsu Province, China
	An, SQ; Bao, HS; Zou, CJ; An, SQ, Nanjing Univ, Dept Biol Sci & Technol, Nanjing 210093, Peoples R China
刊名	ECOLOGICAL ENGINEERING
	1998
卷号	11 期号:1-4 页码:303-313
关键词	Dynamic Model Emergy Allocation Emergy Efficiency Emergy Production Sustainable Development
ISSN号	0925-8574
英文摘要	Emergy flow in a compound agro-ecosystem in the Taihu Lake area of Jiangsu province, China, is studied with a set of numeric models. Model parameters are based on 11 years of records. Results show that total emergy production of two producing subsystems will decline although emergy input into the two subsystems and emergy production of the fish subsystem are growing. Emergy efficiency of the producing subsystems, both gross and net, will decrease, while emergy efficiency of the compound ecosystem will grow up first and then gradually decline. Net emergy production of the producing subsystems will gradually decline, but that of the compound ecosystem will firstly increase and then decrease. Net emergy allocation per human capita in the compound ecosystem will slowly inecrease, but it will decrease if the animal subsystem is removed from the ecosystem; this shows that the animal subsystem is a necessary part of the compound ecosystem. Relative to buffering capacity, emergy efficiency of the compound ecosystem, and recent living quality of local people, sustainable development of the ecosystem is discussed. (C) 1998 Elsevier Science B.V. All rights reserved.
学科主题	Ecology ; Engineering, Environmental ; Environmental Sciences
语种	英语
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55629]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	An, SQ, Nanjing Univ, Dept Biol Sci & Technol, Nanjing 210093, Peoples R China
推荐引用方式 GB/T 7714	An, SQ,Bao, HS,Zou, CJ,et al. Studies of emergy flow in a compound agro-ecosystem in the Taihu Lake area, Jiangsu Province, China[J]. ECOLOGICAL ENGINEERING,1998,11(1-4):303-313.
APA	An, SQ,Bao, HS,Zou, CJ,&An, SQ, Nanjing Univ, Dept Biol Sci & Technol, Nanjing 210093, Peoples R China.(1998).Studies of emergy flow in a compound agro-ecosystem in the Taihu Lake area, Jiangsu Province, China.ECOLOGICAL ENGINEERING,11(1-4),303-313.
MLA	An, SQ,et al."Studies of emergy flow in a compound agro-ecosystem in the Taihu Lake area, Jiangsu Province, China".ECOLOGICAL ENGINEERING 11.1-4(1998):303-313.