Emergy analysis of Chinese agriculture

doi:10.1016/j.agee.2006.01.005

CORC > 北京大学 > 工学院

	Emergy analysis of Chinese agriculture
	Chen, GQ ; Jiang, MM ; Chen, B ; Yang, ZF ; Lin, C
刊名	agriculture ecosystems environment
	2006
关键词	energy analysis Chinese agriculture agro-ecosystem resource accounting sustainable development ENERGY ANALYSIS SUSTAINABILITY INDEXES RATIOS EVALUATE SYSTEMS
DOI	10.1016/j.agee.2006.01.005
英文摘要	This study presents an ecological analysis of Chinese agriculture for the period from 1980 to 2000, on the basis of Odum's well-known concept of emergy in ecological economy. Emergy analysis methods are explained, illustrated and used to diagram the agro-ecosystem, to evaluate environmental and economic inputs and harvested yield, and to assess the sustainability of the Chinese agriculture as a whole. Detailed structure of the input/output and system indicators are examined from a historical perspective for the contemporary Chinese agriculture in the latest two decades after China's Reform and Open in the late 1980s. Temporal variation of indices such as increasing environmental load ratio (ELR), decreasing emergy self-support ratio (ESR) and decreasing emergy yield ratio (EYR) illustrate a weakening sustainability of the Chinese agro-ecosystem characteristic of profound transition from a self-supporting tradition to a modem industry based on non-renewable resource consumption. (c) 2006 Elsevier B.V All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000237378200018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Agriculture, Multidisciplinary; Ecology; Environmental Sciences; SCI(E); 87; ARTICLE; 1-4; 161-173; 115
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155073]
专题	工学院
推荐引用方式 GB/T 7714	Chen, GQ,Jiang, MM,Chen, B,et al. Emergy analysis of Chinese agriculture[J]. agriculture ecosystems environment,2006.
APA	Chen, GQ,Jiang, MM,Chen, B,Yang, ZF,&Lin, C.(2006).Emergy analysis of Chinese agriculture.agriculture ecosystems environment.
MLA	Chen, GQ,et al."Emergy analysis of Chinese agriculture".agriculture ecosystems environment (2006).