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题名: Altitudinal pattern of stream periphyton biomass in tributaries of the Lancang-Mekong River: An indicator of anthropogenic impact?
作者: He, Fengzhi1, 2; Dong, Xiaoyu1, 2; Sun, Meiqin1; Cai, Qinghua1
关键词: Periphyton biomass ; Altitudinal pattern ; Streams ; Anthropogenic impact ; Lancang-Mekong River system
刊名: QUATERNARY INTERNATIONAL
发表日期: 2015-09-04
DOI: 10.1016/j.quaint.2014.12.024
卷: 380, 页:282-287
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: As the primary producer in streams, periphyton plays an important ecological role in nutrient cycling processes, and has been widely used as an indicator for stream assessment and management. This study examined altitudinal patterns of stream periphyton biomass and their relations to environmental variables in three tributaries of the Lancang-Mekong River. Total dissolved solids, conductivity, and water temperature related negatively with elevation in the three streams. Periphyton biomass showed distinct responses to environmental variables in three streams, and no environmental variables had significant relationship with periphyton biomass in all streams. Altitudinal patterns of periphyton biomass in three streams were uniform: it had a positive relation with elevation, showing a consistent trend with the anthropogenic impact. The altitudinal pattern of stream periphyton biomass could be an ideal indicator to assess stream ecological condition, and monitor anthropogenic impact on mountain streams in the Lancang-Mekong River system. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
关键词[WOS]: LAND-USE ; WATER-QUALITY ; ENVIRONMENTAL-FACTORS ; ELEVATION GRADIENTS ; EXPERIMENTAL FLOODS ; BIOTIC INTEGRITY ; XIANGXI RIVER ; URBAN STREAM ; NEW-ZEALAND ; LONG-TERM
语种: 英语
WOS记录号: WOS:000360653300031
ISSN号: 1040-6182
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27169
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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