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题名: Effects of altitude on plant-species diversity and productivity in an alpine meadow, Qinghai-Tibetan plateau
作者: Wang, Chang Ting; Long, Rui Jun; Wang, Qi Ji; Ding, Lu Ming; Wang, Mei Ping
刊名: AUSTRALIAN JOURNAL OF BOTANY
出版日期: 2007
卷号: 55, 期号:2, 页码:110-117
关键词: ECOSYSTEM PRODUCTIVITY ; BIODIVERSITY ; COMMUNITIES ; COMPETITION ; GRADIENTS
学科分类: 生物科学::植物学
文章类型: Article
中文摘要: During the growing seasons of 2002 and 2003, biomass productivity and diversity were examined along an altitudinal transect on the south-western slope of Beishan Mountain, Maqin County (33 degrees 43'-35 degrees 16'N, 98 degrees 48'-100 degrees 55'E), Qinghai-Tibetan Plateau. Six altitudes were selected, between 3840 and 4435 m. Soil organic matter, soil available N and P and environmental factors significantly affected plant-species diversity and productivity of the alpine meadows. Aboveground biomass declined significantly with increasing altitude (P < 0.05) and it was positively and linearly related to late summer soil-surface temperature. Belowground biomass (0 - 10-cm depth) was significantly greater at the lowest and highest altitudes than at intermediate locations, associated with water and nutrient availabilities. At each site, the maximum belowground biomass values occurred at the beginning and the end of the growing seasons (P < 0.05). Soil organic matter content, and available N and P were negatively and closely related to plant diversity (species richness, Shannon-Wiener diversity index, and Pielou evenness index).
英文摘要: During the growing seasons of 2002 and 2003, biomass productivity and diversity were examined along an altitudinal transect on the south-western slope of Beishan Mountain, Maqin County (33 degrees 43'-35 degrees 16'N, 98 degrees 48'-100 degrees 55'E), Qinghai-Tibetan Plateau. Six altitudes were selected, between 3840 and 4435 m. Soil organic matter, soil available N and P and environmental factors significantly affected plant-species diversity and productivity of the alpine meadows. Aboveground biomass declined significantly with increasing altitude (P < 0.05) and it was positively and linearly related to late summer soil-surface temperature. Belowground biomass (0 - 10-cm depth) was significantly greater at the lowest and highest altitudes than at intermediate locations, associated with water and nutrient availabilities. At each site, the maximum belowground biomass values occurred at the beginning and the end of the growing seasons (P < 0.05). Soil organic matter content, and available N and P were negatively and closely related to plant diversity (species richness, Shannon-Wiener diversity index, and Pielou evenness index).
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
关键词[WOS]: ECOSYSTEM PRODUCTIVITY ; BIODIVERSITY ; COMMUNITIES ; COMPETITION ; GRADIENTS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000244949800003
Citation statistics:
内容类型: 期刊论文
URI标识: http://210.75.249.4/handle/363003/1293
Appears in Collections:中国科学院西北高原生物研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810008, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Ctr Tibetan Grassland & Yak Studies, Lanzhou, Peoples R China

Recommended Citation:
Wang Changting,Long Ruijun, Wang Qiji, Ding Lumng,Wang Meiping. Effects of altitude on plant-species diversity and productivity in an alpine meadow, Qinghai-Tibetan plateau.AUSTRALIAN JOURNAL OF BOTANY,2007,55(2):110-117
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