农业生态系统能流分析中几个问题的探讨

Abstract

Abstract: In this paper,some concepts and mithods in the energy flow analyxis of agro-ecosyxtems were discussed.Supplementary energy replace ratio concept was proposed to clrify people s comprehension and understanding to some concepts. It is suggested to replace energy input-output ratiowith supplertientary energy replacement ratio in the energyflow analysis.The calculations of industrial supplementary en-ergy among various systems or at different periods of same system were discussed.

Key words: gro- ecosystem, supplementary energy replacement ratio, energy flow analysis

CLC Number:

S181

WU Zuo-Li. Disscussion on problems in the energy flow analysis or agro-ecosystem[J]. Journal of Ecology and Rural Environment, 1994, 10(3): 69-72.

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Disscussion on problems in the energy flow analysis or agro-ecosystem

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