globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12059
论文题名:
Plant functional traits mediate reproductive phenology and success in response to experimental warming and snow addition in Tibet
作者: Dorji T.; Totland ø; Moe S.R.; Hopping K.A.; Pan J.; Klein J.A.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:2
起始页码: 459
结束页码: 472
语种: 英语
英文关键词: Alpine meadow ; Climate change ; Flowering phenology ; Kobresia pygmaea ; Soil moisture
Scopus关键词: snow ; alpine environment ; angiosperm ; climate change ; flowering ; meadow ; phenology ; reproductive effort ; reproductive success ; soil moisture ; article ; China ; climate ; plant physiology ; reproduction ; Climate ; Plant Physiological Phenomena ; Reproduction ; Snow ; Tibet ; China ; Qinghai-Xizang Plateau ; Kobresia pygmaea ; Magnoliophyta
英文摘要: Global climate change is predicted to have large impacts on the phenology and reproduction of alpine plants, which will have important implications for plant demography and community interactions, trophic dynamics, ecosystem energy balance, and human livelihoods. In this article we report results of a 3-year, fully factorial experimental study exploring how warming, snow addition, and their combination affect reproductive phenology, effort, and success of four alpine plant species belonging to three different life forms in a semiarid, alpine meadow ecosystem on the central Tibetan Plateau. Our results indicate that warming and snow addition change reproductive phenology and success, but responses are not uniform across species. Moreover, traits associated with resource acquisition, such as rooting depth and life history (early vs. late flowering), mediate plant phenology, and reproductive responses to changing climatic conditions. Specifically, we found that warming delayed the reproductive phenology and decreased number of inflorescences of Kobresia pygmaea C. B. Clarke, a shallow-rooted, early-flowering plant, which may be mainly constrained by upper-soil moisture availability. Because K. pygmaea is the dominant species in the alpine meadow ecosystem, these results may have important implications for ecosystem dynamics and for pastoralists and wildlife in the region. © 2012 Blackwell Publishing Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62531
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, Ås NO-1432, Norway; Department of Plant Science and Technology, Tibet Agriculture and Animal Husbandry College, College Road No. 8, Bayi, Nyingchi, 860000, China; Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523-1499, United States; School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Department of Ecosystem Science and Sustainability, Colorado State University, 213 Natural Resources Building, Fort Collins, CO 80523, United States

Recommended Citation:
Dorji T.,Totland ø,Moe S.R.,et al. Plant functional traits mediate reproductive phenology and success in response to experimental warming and snow addition in Tibet[J]. Global Change Biology,2013-01-01,19(2)
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