生态经济系统的一种整合评价方法:能值理论与分析方法

A synthesis evaluation method of economical-ecosystem: Emergy theory and analysis method

能值理论与分析方法是目前系统生态学和生态经济学发展的新成果,为复合生态系统开拓了一条定量研究途径,是连接生态学和经济学的桥梁。其理论研究与实践应用具有重要的科学意义和应用意义。文章论述了能值分析理论与分析方法的产生背景、过程、主要的基本概念、特点,指出了其需要解决的问题;并以种植业系统为例,简要介绍了能值分析的基本方法和步骤以及能值指标的计算。

Emergy theory and synthesis method is a new fruit of system ecology and ecological economics. It develops a quantitative way to study complex ecosystems, and a bridge that connects ecology and economics. It is significant to study it for both science and practice. This article discusses its background and developing process, main basic concepts, characteristics; and also points out the problems that need to be solved. The basic methods and steps of Emergy analysis and the calculating of Emergy indices are explained in detail, taking a plant-system as an example.