生态系统的能值分析

摘要/Abstract

摘要： 论述了国际生态学最新发展的能值(Emergy)分析方法与原理,并与能量分析作比较研究.任何产品或劳务形成过程中所需投入的直接和间接的一种有效能之量称为其具有的能值;单位能量相当的能值称为该能量的能值转换率.能值和能值转换率揭示了能量的能质、等级及其真实价值;以能值尺度可衡量比较不同类别的能量,综合分析各种生态系统的生态流,定量研究生态与经济效率及其关联.

关键词: 能值分析, 能量分析, 生态系统, 太阳能值, 太阳能值转换率

Abstract: The concept of emergy, its use for comparing with energy were discussed in this paper.Emergy was defined as the amount of available energy required directly, indirectly to make a product or services,and emergy analysis was based on the solar emergy units (solar emjoules).Emergy provided the methodology with a common basis for measuring the value of different kinds of energy,and for evaluating the contributions from nature, humanity.A comparison of emergy analysis with previous energy analysis was also performed.

Key words: Emergy analysis, Energy analysis, Ecosystem, Solar emergy, Solar transformity

中图分类号:

Q148

蓝盛芳, 钦佩. 生态系统的能值分析[J]. 应用生态学报, 2001, (1): 129-131.

LAN Shengfang, QIN Pei. Emergy analysis of ecosystems[J]. Chinese Journal of Applied Ecology, 2001, (1): 129-131.

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