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题名: Longitudinal patterns of periphyton biomass in Qinghai-Tibetan Plateau streams: An indicator of pasture degradation?
作者: Ren, Ze1, 2; Jiang, Zuyao1; Cai, Qinghua1
通讯作者: Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 South Donghu Rd, Wuhan 430072, Peoples R China.
关键词: NUTRIENT ENRICHMENT ; CLIMATE-CHANGE ; LIGHT ; RIVER ; TEMPERATURE ; PRODUCTIVITY ; PHOSPHORUS ; DYNAMICS ; ALGAE ; STOICHIOMETRY
刊名: QUATERNARY INTERNATIONAL
发表日期: 2013-11-05
DOI: 10.1016/j.quaint.2013.05.025
卷: 313, 期:-, 页:92-99
收录类别: SCI
文章类型: Article
部门归属: [Ren, Ze; Jiang, Zuyao; Cai, Qinghua] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Ren, Ze] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Physical Sciences
资助者: National Natural Science Foundation of China [40911130508]; Major S&T Special Project of Water Pollution Control and Management [2012ZX07104-002]
类目[WOS]: Geography, Physical ; Geosciences, Multidisciplinary
研究领域[WOS]: Physical Geography ; Geology
摘要: Periphyton communities play a key role in stream ecosystems, and are usually used as an indicator for long-term biological monitoring, management and evaluation. This study examined the relationships between environmental variables and stream periphyton biomass, investigated the longitudinal patterns of periphyton biomass, and explored the relationships between these longitudinal patterns and pasture degradations in Qinghai-Tibetan Plateau. Isolated environmental variables did not have significant impacts on periphyton biomass and did not clearly respond to the influence of pasture degradation. The longitudinal patterns of stream periphyton biomass were consistent with pasture degradation trends. The more serious the pasture degradation, the lower is the periphyton biomass. Longitudinal gradient is a comprehensive variable, which represents a number of space-related environmental factors. In Qinghai-Tibetan Plateau, the pasture ecosystems are fragile and have been severely degraded. The longitudinal patterns of periphyton biomass were closely related to ecological degradation and can be used as an indicator to monitor and evaluate pasture degradation in Qinghai-Tibetan Plateau. (C) 2013 Elsevier Ltd and INQUA. All rights reserved.
英文摘要: Periphyton communities play a key role in stream ecosystems, and are usually used as an indicator for long-term biological monitoring, management and evaluation. This study examined the relationships between environmental variables and stream periphyton biomass, investigated the longitudinal patterns of periphyton biomass, and explored the relationships between these longitudinal patterns and pasture degradations in Qinghai-Tibetan Plateau. Isolated environmental variables did not have significant impacts on periphyton biomass and did not clearly respond to the influence of pasture degradation. The longitudinal patterns of stream periphyton biomass were consistent with pasture degradation trends. The more serious the pasture degradation, the lower is the periphyton biomass. Longitudinal gradient is a comprehensive variable, which represents a number of space-related environmental factors. In Qinghai-Tibetan Plateau, the pasture ecosystems are fragile and have been severely degraded. The longitudinal patterns of periphyton biomass were closely related to ecological degradation and can be used as an indicator to monitor and evaluate pasture degradation in Qinghai-Tibetan Plateau. (C) 2013 Elsevier Ltd and INQUA. All rights reserved.
关键词[WOS]: NUTRIENT ENRICHMENT ; CLIMATE-CHANGE ; LIGHT ; RIVER ; TEMPERATURE ; PRODUCTIVITY ; PHOSPHORUS ; DYNAMICS ; ALGAE ; STOICHIOMETRY
语种: 英语
WOS记录号: WOS:000327171200010
ISSN号: 1040-6182
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19762
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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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