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学科主题: 地理学::自然地理学
题名: Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall
作者: Li, RC (Li, Ruicheng)1, 2; Luo, TX (Luo, Tianxiang)2, 6; Molg, T (Moelg, Thomas)3; Zhao, JX (Zhao, Jingxue)2; Li, X (Li, Xiang)2; Cui, XY (Cui, Xiaoyong)1; Du, MY (Du, Mingyuan)4; Tang, YH (Tang, Yanhong)5, 7
通讯作者: Luo, TX
刊名: SCIENTIFIC REPORTS
发表日期: 2016
DOI: 10.1038/srep20985
卷: 6, 期:0, 页:20985
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: The alpine meadow on the Tibetan Plateau is the highest and largest pasture in the world, and its formation and distribution are mainly controlled by Indian summer monsoon effects. However, little is known about how monsoon-related cues may trigger spring phenology of the vast alpine vegetation. Based on the 7-year observations with fenced and transplanted experiments across lower to upper limits of Kobresia meadows in the central plateau (4400-5200 m), we found that leaf unfolding dates of dominant sedge and grass species synchronized with monsoon onset, regardless of air temperature. We also found similar patterns in a 22-year data set from the northeast plateau. In the monsoon-related cues for leaf unfolding, the arrival of monsoon rainfall is crucial, while seasonal air temperatures are already continuously above 0 degrees C. In contrast, the early-emerging cushion species generally leafed out earlier in warmer years regardless of precipitation. Our data provide evidence that leaf unfolding of dominant species in the alpine meadows senses the arrival of monsoon-season rainfall. These findings also provide a basis for interpreting the spatially variable greening responses to warming detected in the world's highest pasture, and suggest a phenological strategy for avoiding damages of pre-monsoon drought and frost to alpine plants.
语种: 英语
WOS记录号: WOS:000369658200001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7759
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China
3.Univ Erlangen Nurnberg, Inst Geog, Climate Syst Res Grp, D-91058 Erlangen, Germany
4.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan
5.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan
6.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
7.Peking Univ, Dept Urban & Environm Sci, Beijing 100871, Peoples R China

Recommended Citation:
Li, RC ,Luo, TX ,Molg, T ,et al. Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall[J]. SCIENTIFIC REPORTS,2016,6(0):20985.
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文件名: V.6 20985 2016.pdf
格式: Adobe PDF
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