Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall

doi:10.1038/srep20985

	Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall
	Luo, TX (Luo, Tianxiang)2,7; Li, RC (Li, Ruicheng)6,7; Molg, T (Moelg, Thomas)4; Zhao, JX (Zhao, Jingxue)7; Li, X (Li, Xiang)7; Cui, XY (Cui, Xiaoyong)6; Du, MY (Du, Mingyuan)5; Tang, YH (Tang, Yanhong)1,3; Luo, TX
刊名	SCIENTIFIC REPORTS
	2016
卷号	6 期号:0 页码:20985
关键词	Spring Vegetation Phenology Climate-change Altitudinal Gradient Northern-hemisphere High Asia Plateau Precipitation Temperature Variability Responses
DOI	10.1038/srep20985
文献子类	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.
学科主题	自然地理学
语种	英语
WOS记录号	WOS:000369658200001
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/7759]
专题	青藏高原研究所_图书馆
通讯作者	Luo, TX
作者单位	1.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 3.Peking Univ, Dept Urban & Environm Sci, Beijing 100871, Peoples R China 4.Univ Erlangen Nurnberg, Inst Geog, Climate Syst Res Grp, D-91058 Erlangen, Germany 5.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Luo, TX ,Li, RC ,Molg, T ,et al. Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall[J]. SCIENTIFIC REPORTS,2016,6(0):20985.
APA	Luo, TX .,Li, RC .,Molg, T .,Zhao, JX .,Li, X .,...&Luo, TX.(2016).Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall.SCIENTIFIC REPORTS,6(0),20985.
MLA	Luo, TX ,et al."Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall".SCIENTIFIC REPORTS 6.0(2016):20985.