Development of a benthic diatom index of biotic integrity (BD-IBI) for ecosystem health assessment of human dominant subtropical rivers, China

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	Development of a benthic diatom index of biotic integrity (BD-IBI) for ecosystem health assessment of human dominant subtropical rivers, China
	Tan, Xiang; Ma, Peiming; Bunn, Stuart E.; Zhang, Quanfa
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2015
英文摘要	As efforts intensify to address the issues of declining water quality and biodiversity losses in freshwater ecosystems, there have been great demands for effective methods of evaluating aquatic ecosystem health. In this study, benthic algae assemblages and water quality variables were analyzed to develop a benthic diatom-based index of biotic integrity (BD-IBI) for assessment of the aquatic environment in the upper Han River (China). Through the use of multivariate and multimetric approaches, four metrics - % prostrate individuals, % Amphora individuals, %polysaprob species, and diatom-based eutrophication/pollution index (EPI-D) - were identified from 98 candidate metrics to develop a BD-IBI. Application of the index revealed that water quality in 11% of the 31 sampled sites could be described as excellent condition, in 43% of the sites it could be described as good condition, in 25% as moderate condition, and in 21% as poor condition. The assessment further revealed that the main reason for degradation of the Han river ecosystem was nutrient enrichment through agricultural land use. (C) 2014 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/299]
专题	中国科学院武汉植物园
推荐引用方式 GB/T 7714	Tan, Xiang,Ma, Peiming,Bunn, Stuart E.,et al. Development of a benthic diatom index of biotic integrity (BD-IBI) for ecosystem health assessment of human dominant subtropical rivers, China[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2015.
APA	Tan, Xiang,Ma, Peiming,Bunn, Stuart E.,&Zhang, Quanfa.(2015).Development of a benthic diatom index of biotic integrity (BD-IBI) for ecosystem health assessment of human dominant subtropical rivers, China.JOURNAL OF ENVIRONMENTAL MANAGEMENT.
MLA	Tan, Xiang,et al."Development of a benthic diatom index of biotic integrity (BD-IBI) for ecosystem health assessment of human dominant subtropical rivers, China".JOURNAL OF ENVIRONMENTAL MANAGEMENT (2015).