PMID: 15334968Sep 1, 2004Paper

Emergy analysis on an added loop in Spartina alterniflora ecological engineering

Ying yong sheng tai xue bao = The journal of applied ecology
Jin'e LiuMin Xie

Abstract

Based on the principle of multi-grade utilization of resources to get ecological, economic and social benefits of ecological engineering, this paper designed an added loop, following the Spartina alterniflora Ecological Engineering (SAEE). All the added loop design included SAEE, and the capsule was named SAEEC. In the added loop design, the Biological Mineral Liquid (BML) was made into antihyperlipidemia capsules, of which, the total flavonoids added up to 9.58 mg x g(-1). Emergy analysis method was applied to evaluate the SAEEC project. Compared with SAEE, the added loop design increased emergy investment ratio (EIR) by 1.37 fold, net economic benefit of the SAEEC by 2.13 fold, economic yield/input ratio by 1.46 fold, net emergy yield (NEY) by 3.18 fold, and net emergy yield ratio (EYR) by 2.20 fold, showing its more efficiency.

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