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

doi:10.1038/srep20985

CORC > 北京大学 > 城市与环境学院

	Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall
	Li, Ruicheng ; Luo, Tianxiang ; Moelg, Thomas ; Zhao, Jingxue ; Li, Xiang ; Cui, Xiaoyong ; Du, Mingyuan ; Tang, Yanhong
刊名	SCIENTIFIC REPORTS
	2016
关键词	SPRING VEGETATION PHENOLOGY CLIMATE-CHANGE ALTITUDINAL GRADIENT NORTHERN-HEMISPHERE HIGH ASIA PLATEAU PRECIPITATION TEMPERATURE VARIABILITY RESPONSES
DOI	10.1038/srep20985
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.; Strategic Priority Research Program (B) of the Chinese Academy of Sciences [XDB03030402]; international projects "Early detection and prediction of climate warming based on the long-term monitoring on the Tibetan Plateau" - Ministry of the Environment of Japan; National Natural Science Foundation of China [31170451]; China Postdoctoral Science Foundation [2013M530700]; SCI(E); ARTICLE; luotx@itpcas.ac.cn; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438655]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Li, Ruicheng,Luo, Tianxiang,Moelg, Thomas,et al. Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall[J]. SCIENTIFIC REPORTS,2016.
APA	Li, Ruicheng.,Luo, Tianxiang.,Moelg, Thomas.,Zhao, Jingxue.,Li, Xiang.,...&Tang, Yanhong.(2016).Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall.SCIENTIFIC REPORTS.
MLA	Li, Ruicheng,et al."Leaf unfolding of Tibetan alpine meadows captures the arrival of monsoon rainfall".SCIENTIFIC REPORTS (2016).