Ecological indicators for assessing freshwater ecosystem health

doi:10.1016/S0304-3800(98)00160-4

CORC > 北京大学 > 城市与环境学院

	Ecological indicators for assessing freshwater ecosystem health
	Xu, FL ; Jorgensen, SE ; Tao, S
刊名	ecological modelling
	1999
关键词	ecological indicator freshwater ecosystem health chemical stress community structure food web function exergy structural exergy buffer capacity COAL-DERIVED OIL WATER PLANKTON COMMUNITY CHRONIC COPPER STRESS BOREAL FOREST LAKE EXPERIMENTAL ACIDIFICATION ZOOPLANKTON COMMUNITIES PHYTOPLANKTON COMMUNITIES CHEMICAL STRESSORS METSULFURON METHYL EXPERIMENTAL PONDS
DOI	10.1016/S0304-3800(98)00160-4
英文摘要	The paper presents the structural, functional and system-level symptoms of four chemical stresses, acidification, copper, oil and pesticide contamination in freshwater ecosystems. Exergy, structural exergy and zooplankton buffer capacity were used as ecological indicators far the measurement of ecosystem-level responses to the four chemical stresses. The results showed that the changes in ecosystem level were highly related to the changes in structure and function of the studied ecosystems and these changes indicated the effects of chemical stress on freshwater ecosystem health. Exergy, structural exergy and zooplankton buffer capacity followed the significant decline of zooplankton biomass, B-z/B-p ratio, species richness or diversity and resource use efficiency, caused by chemical stress. A slight change in structure and function of local ecosystems, was accompanied by unchanged or slightly changed exergy, structural exergy and zooplankton buffer capacity. The results lead to a set of comprehensive ecological indicators for assessing the impacts of chemical stress on freshwater ecosystem health, including structural, functional and system-level indicators. These indicators were successfully applied to assess the health of a lake ecosystem. (C) 1999 Elsevier Science B.V. All rights reserved.; Ecology; SCI(E); 49; REVIEW; 1; 77-106; 116
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160920]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Xu, FL,Jorgensen, SE,Tao, S. Ecological indicators for assessing freshwater ecosystem health[J]. ecological modelling,1999.
APA	Xu, FL,Jorgensen, SE,&Tao, S.(1999).Ecological indicators for assessing freshwater ecosystem health.ecological modelling.
MLA	Xu, FL,et al."Ecological indicators for assessing freshwater ecosystem health".ecological modelling (1999).