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题名: An exploratory analysis of ecological water requirements of macroinvertebrates in the Wuhan branch of the Yangtze River
作者: Pan, Bao-Zhu1, 2; Wang, Hong-Zhu1; Ban, Xuan3; Yin, Xin-An4
关键词: Ecological water requirements ; Flow ; Instream Flow Incremental Methodology (IFIM) ; Macroinvertebrates ; The Yangtze River
刊名: QUATERNARY INTERNATIONAL
发表日期: 2015-09-04
DOI: 10.1016/j.quaint.2014.10.011
卷: 380, 页:256-261
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Geography, Physical ; Geosciences, Multidisciplinary
研究领域[WOS]: Physical Geography ; Geology
英文摘要: The natural flow regime is confirmed to be the main driving factor in maintaining diverse species and abundant production of river floodplains. However, disturbance of human activities have affected natural hydro-geomorphical process, reduced habitat heterogeneity, and weakened ecological service functions. Thus, it is necessary to assess ecological water requirements and furthermore provide a quantitative operational basis for restoring natural flow regime. Macroinvertebrates are considered as good indicators of hydrological regime changes due to their confinement to the bottom, limited abilities of movement, and low tolerance. This paper deals with systematic ecological investigations in the Wuhan branch of the Yangtze River during 2007-2008. Altogether, 32 taxa of macroinvertebrates belonging to 13 families and 27 genera were identified. The density and biomass of total macroinvertebrates were 181 ind m(-2) and 0.29 g dry mass m(-2), respectively. Canonical Correspondence Analysis (CCA) revealed that the important environmental factors influencing macroinvertebrate abundance were flow velocity (U), water depth (Z), and total nitrogen (TN). The relation between habitat weighted usable area and water discharge was analyzed on basis of creating suitability curves. Weighted usable area of habitat showed unimodal changes with increasing water discharge, i.e., first increased and then decreased, and weighted usable area of habitat reached the maximum when flow discharge was 21,000 m(3) s(-1). (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
关键词[WOS]: INSTREAM FLOW ; PHYTOPLANKTON BIOMASS ; LOWLAND RIVER ; LAKES ; CONNECTIVITY ; MANAGEMENT ; DENSITY ; HABITAT ; DEPTH
语种: 英语
WOS记录号: WOS:000360653300028
ISSN号: 1040-6182
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27177
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Changjiang River Sci Res Inst, Wuhan 430010, Hubei, Peoples R China
3.Chinese Acad Sci, Inst Geodesy & Geophys, Key Lab Environm & Disaster Monitoring & Evaluat, Wuhan 430077, Hubei, Peoples R China
4.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
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