| 生态能质(eco-exergy)在水生生态系统建模和评价中的应用 |
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| 引用本文： | 李晴新,冯剑丰,朱琳. 生态能质(eco-exergy)在水生生态系统建模和评价中的应用[J]. 生态学杂志, 2011, 30(2): 376 |
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| 作者姓名： | 李晴新 冯剑丰 朱琳 |
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| 作者单位： | 南开大学环境科学与工程学院,环境污染过程与基准教育部重点实验室,天津,300071 |
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| 基金项目： | 国家水专项(2008ZX08526-003); 天津市科技计划项目(08ZCGYSF00200)资助 |
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| 摘 要： | 生态能质(eco-exergy)是指系统从给定状态达到热力学平衡状态所做的功,可以度量生态系统的复杂生物化学组分及生态结构。系统具有的能质越大,有序化程度越高,稳定性也越强。生态能质和比生态能质(specific eco-exergy)指标能够评价水生生态系统健康状况,对水生生态系统演替阶段具有指示作用。本文阐述了生态能质的定义、生态学意义以及生态能质值和权重因子fi值的计算方法。对生态能质作为功能函数在水生生态系统结构动力学模型(structural dynamic models,SDMs)中以及作为生态指标在生态系统健康评价、生态恢复研究中的实际应用进行了总结。最后探讨了生态能质指标的局限性以及未来的发展。此外,文中建议将eco-exergy和specific eco-exergy统一翻译为生态能质和比生态能质。
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| 关 键 词： | 水生生态系统 生态能质 建模与评价 生态系统健康 生态恢复应用 |
Applications of eco-exergy in ecological modeling and assessment of aquatic ecosystems |
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| LI Qing-xin,FENG Jian-feng,ZHU Lin. Applications of eco-exergy in ecological modeling and assessment of aquatic ecosystems[J]. Chinese Journal of Ecology, 2011, 30(2): 376 |
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| Authors: | LI Qing-xin FENG Jian-feng ZHU Lin |
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| Affiliation: | LI Qing-xin,FENG Jian-feng,ZHU Lin(Key Laboratory of Pollution Processes and Environmental Criteria at Ministry of Education,College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China) |
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| Abstract: | Eco-exergy is defined as the amount of work that a system can perform when the system is brought into thermodynamic equilibrium from a given state. It can be used to measure the complex biochemical components and ecological structure. A system with more exergy will present better ordering and stability. Eco-exergy and specific eco-exergy can be used to assess the status of aquatic ecosystem health,and indicate the certain succession stage in aquatic ecosystem restoration. This paper presented the definition... |
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| Keywords: | aquatic ecosystem eco-exergy ecological modeling and assessment ecosystem health ecological restoration application. |
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