globalchange  > 气候变化与战略
DOI: 10.1016/j.agee.2019.106795
Impacts of climate change on flowering phenology and production in alpine plants: The importance of end of flowering
Author: Dorji T.; Hopping K.A.; Meng F.; Wang S.; Jiang L.; Klein J.A.
Source Publication: Agriculture, Ecosystems and Environment
ISSN: 1678809
Publishing Year: 2020
Volume: 291
Language: 英语
Keyword: Alpine ; Climate warming ; OTCs ; Seasonality ; Shrub ; Snow manipulation ; Tibetan Plateau
Scopus Keyword: alpine environment ; budburst ; flowering ; global climate ; meadow ; pasture ; phenology ; reproductive effort ; seasonality ; shrub ; China ; Qinghai-Xizang Plateau ; Potentilla ; Potentilla fruticosa
English Abstract: Changes in the seasonal timing of plant flowering are hypothesized to alter the number of flowers plants produce, which contributes to reproductive success. However, empirical evidence linking specific aspects of plant flowering phenology to the number of flowers produced is limited, particularly under future global climate change. We used phenology measurements after 2, 3, 6, and 7 years of a fully factorial, climate change field experiment in an alpine meadow pasture on the central Tibetan Plateau to understand: 1) how experimental warming and snow addition affect the date of first and last flowering in related forb and shrub species, Potentilla saundersiana Royle and Potentilla fruticosa L.; and 2) how these changes in the timing of phenological events alter flowering duration and production, as a proxy for reproductive effort. We found that warming significantly advanced the date of first flowering in both P. fruticosa and P. saundersiana, with no other significant effects on flowering duration or production. In contrast to warming, simulated snowstorms delayed the date of first flowering in P. saundersiana, but had no significant effect on P. fruticosa. There were no significant treatment interactions. For both species, flower production increased as the last date of flowering occurred later. These results indicate that as climate change alters alpine plant phenology, advances in the timing of first flowering alone will not necessarily translate to increases in flowering duration and enhanced reproductive effort. Instead, these findings demonstrate the importance of the date of last flowering in mediating plant reproductive effort and success. © 2019 Elsevier B.V.
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被引频次[WOS]:2   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Appears in Collections:气候变化与战略

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Affiliation: Key Laboratory of Alpine Ecology, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Nongke Road No. 6, Lhasa, Tibet Autonomous Region 850000, China; CAS Center for Excellence in Tibetan Plateau Earth Science, Campus16 Lincui Road, Chaoyang District, Beijing, 100101, China; Naqu Ecological and Environmental Observation and Research Station of Tibet University and Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Lhoma TownshipTibet Autonomous Region 852076, China; Human-Environment Systems, Boise State University, Boise, ID 83725, United States; Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523, United States

Recommended Citation:
Dorji T.,Hopping K.A.,Meng F.,et al. Impacts of climate change on flowering phenology and production in alpine plants: The importance of end of flowering[J]. Agriculture, Ecosystems and Environment,2020-01-01,291
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