| 生态系统的能值分析 |
| |
| 引用本文： | 蓝盛芳,钦佩.生态系统的能值分析[J].生态学杂志,2001,0(1):129-131. |
| |
| 作者姓名： | 蓝盛芳 钦佩 |
| |
| 作者单位： | 1. 华南农业大学, 广州510642;2. 南京大学, 南京210093 |
| |
| 基金项目： | 国家自然科学基金资助项目(30070146) |
| |
| 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 |
| 收稿时间： | 2000-05-09 |
Emergy analysis of ecosystems |
| |
| LAN Shengfang,QIN Pei.Emergy analysis of ecosystems[J].Chinese Journal of Ecology,2001,0(1):129-131. |
| |
| Authors: | LAN Shengfang QIN Pei |
| |
| Institution: | 1. South China Agricultural University, Guangzhou 510642;2. Nanjing University, Nanjing 210093 |
| |
| 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. |
| |
| Keywords: | Emergy analysis Energy analysis Ecosystem Solar emergy Solar transformity |
|
| 点击此处可从《生态学杂志》浏览原始摘要信息 |
| 点击此处可从《生态学杂志》下载免费的PDF全文 |
|
