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题名: Effect of artificial macrocosms on water characteristics and benthic diatom communities in Donghu Lake, China
作者: He, Yue1; Liu, Guo-Xiang2; Pei, Guo-Feng1
关键词: Benthic diatom ; macrocosms ; water characteristics ; biodiversity ; Donghu Lake
刊名: JOURNAL OF FRESHWATER ECOLOGY
发表日期: 2016
DOI: 10.1080/02705060.2016.1187675
卷: 31, 期:4, 页:533-542
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology ; Limnology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
英文摘要: Macrocosm experiments at various scales have been applied in lake eutrophication management worldwide. This study investigated how artificially created macrocosms affect the physicochemical characteristics of lake water, as well as the density, community structure, and biodiversity of benthic diatoms. First, we found that macrocosms were mesotrophic compared to the eutrophic control lake water from March 2012 to February 2013. Second, 148 diatom taxa were recorded across all study sites; both species richness and the number of dominant diatom taxa were higher in the macrocosms, compared with the control lake water. Mean diatom densities in the macrocosms and the control were 8.4 and 21 x 10(9) cells/m(2), respectively. Across all sites and seasons, Achnanthidium minutissimum was the most abundant species and dominant contributor to total abundance (14%). In the macrocosms, other abundant diatom taxa were Cymbella gracilis, Cymbellaaffinis, Gomphonema truncatum, and Gomphoneis olivaceum, all of which are associated with high water quality. Canonical correspondence analysis indicated that the variation in benthic diatom communities was strongly related to phosphorus and nitrogen concentrations in macrocosms, but related to pH and total nitrogen in the control. This study suggests that macrocosms created to alter water characteristics have a positive effect on ecosystem biodiversity and function.
关键词[WOS]: ENVIRONMENTAL RELATIONSHIPS ; PHOSPHORUS REMOVAL ; SURFACE SEDIMENTS ; EUTROPHIC LAKE ; ASSEMBLAGES ; PERIPHYTON ; SHALLOW ; MACROPHYTES ; VARIABLES ; QUALITY
语种: 英语
项目资助者: National Science Foundation of China(30970550) ; Hubei Province(2015CFB416)
WOS记录号: WOS:000387166100005
ISSN号: 0270-5060
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28683
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.South Cent Univ Nat, Coll life Sci, Wuhan, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Peoples R China
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