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Effects of altitude on plant-species diversity and productivity in an alpine meadow, Qinghai-Tibetan plateau
Wang, Chang Ting; Long, Rui Jun; Wang, Qi Ji; Ding, Lu Ming; Wang, Mei Ping
2007
发表期刊AUSTRALIAN JOURNAL OF BOTANY
卷号55期号:2页码:110-117
文章类型Article
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).; 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).
关键词Ecosystem Productivity Biodiversity Communities Competition Gradients
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科领域植物学
关键词[WOS]ECOSYSTEM PRODUCTIVITY ; BIODIVERSITY ; COMMUNITIES ; COMPETITION ; GRADIENTS
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000244949800003
引用统计
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1293
专题中国科学院西北高原生物研究所
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
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GB/T 7714
Wang, Chang Ting,Long, Rui Jun,Wang, Qi Ji,et al. Effects of altitude on plant-species diversity and productivity in an alpine meadow, Qinghai-Tibetan plateau[J]. AUSTRALIAN JOURNAL OF BOTANY,2007,55(2):110-117.
APA Wang, Chang Ting,Long, Rui Jun,Wang, Qi Ji,Ding, Lu Ming,&Wang, Mei Ping.(2007).Effects of altitude on plant-species diversity and productivity in an alpine meadow, Qinghai-Tibetan plateau.AUSTRALIAN JOURNAL OF BOTANY,55(2),110-117.
MLA Wang, Chang Ting,et al."Effects of altitude on plant-species diversity and productivity in an alpine meadow, Qinghai-Tibetan plateau".AUSTRALIAN JOURNAL OF BOTANY 55.2(2007):110-117.
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