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学科主题: Ecology
题名: Species richness in a riparian plant community along the banks of the Xiangxi River, the Three Gorges region
作者: Jiang, MX; Deng, HB; Cai, QH; Wu, G
通讯作者: Cai, QH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: China ; plant species richness ; altitude ; riparian community ; Xiangxi River
刊名: INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY
发表日期: 2005-03-01
卷: 12, 期:1, 页:60-67
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430072, Peoples R China; Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology
研究领域[WOS]: Environmental Sciences & Ecology
摘要: The distribution of vascular plant species richness along an altitudinal gradient and their relationships with environmental variables, including slope, aspect, bank (flooding) height, and river width of the Xiangxi River, Hubei Province, were examined. Total vascular plant species richness changed with elevation: it increased at lower elevations, reached a maximum in the midreaches and decreased thereafter. In particular, tree and herbaceous species richness were related to altitude. Correlation analysis (Kendall's tau) between species richness and environmental variables indicated that the change in species richness in the riparian zone was determined by riparian environmental factors and characteristics of regional vegetation distribution along the altitudinal gradient. The low species richness at lower elevations resulted from seasonal flooding and human activities - agriculture and fuel collection - and the higher. Species richness ill (he midreaches reflected transitional zones ill natural vegetation types that had had little disturbance. These results oil species distribution in the riparian community could he utilized as a reference for restoration efforts to improve water quality of the emerging reservoir resulting from the Three Gorges Hydroelectric Dam project.
英文摘要: The distribution of vascular plant species richness along an altitudinal gradient and their relationships with environmental variables, including slope, aspect, bank (flooding) height, and river width of the Xiangxi River, Hubei Province, were examined. Total vascular plant species richness changed with elevation: it increased at lower elevations, reached a maximum in the midreaches and decreased thereafter. In particular, tree and herbaceous species richness were related to altitude. Correlation analysis (Kendall's tau) between species richness and environmental variables indicated that the change in species richness in the riparian zone was determined by riparian environmental factors and characteristics of regional vegetation distribution along the altitudinal gradient. The low species richness at lower elevations resulted from seasonal flooding and human activities - agriculture and fuel collection - and the higher. Species richness ill (he midreaches reflected transitional zones ill natural vegetation types that had had little disturbance. These results oil species distribution in the riparian community could he utilized as a reference for restoration efforts to improve water quality of the emerging reservoir resulting from the Three Gorges Hydroelectric Dam project.
关键词[WOS]: VEGETATION ; LANDSCAPE ; ZONES ; BIODIVERSITY ; CATCHMENT ; AUSTRALIA ; PATTERNS ; FORESTS ; SCALE
语种: 英语
WOS记录号: WOS:000228597100007
ISSN号: 1350-4509
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9284
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Wuhan 430072, Peoples R China

Recommended Citation:
Jiang, MX; Deng, HB; Cai, QH; Wu, G.Species richness in a riparian plant community along the banks of the Xiangxi River, the Three Gorges region,INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY,2005,12(1):60-67
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