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生态能质(eco-exergy)在水生生态系统建模和评价中的应用

被引：9
作者：
李晴新
冯剑丰
朱琳
机构：
[1] 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
来源：
生态学杂志 | 2011年 / 30卷 / 02期
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;
D O I：
10.13292/j.1000-4890.2011.0047
中图分类号：
X171.1 [生态系统与生态环境];
学科分类号：
071012 ; 0713 ;
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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页码：376 / 383
页数：8
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