气候变化领域集成服务门户(CCPortal): Susceptibility of vegetation low-growth to climate extremes on Tibetan Plateau

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DOI	10.1016/j.agrformet.2023.109323
	Susceptibility of vegetation low-growth to climate extremes on Tibetan Plateau
	Zhang, Yichen; Hong, Songbai; Liu, Dan; Piao, Shilong
发表日期	2023
ISSN	0168-1923
EISSN	1873-2240
卷号	331
英文摘要	Both intensity and frequency of climate extreme events have significantly increased over the past decades, which triggered exceptional responses in terrestrial ecosystems. Resolving the responses of vegetation growth to climate extremes are essential but challenging. The Tibetan Plateau (TP), home to fragile alpine ecosystems, is sensitive to increased climatic variabilities and thus an ideal region to characterize various ecosystem response to climate extremes. In this study, we employed event coincidence analysis to detect the susceptibility (quantified by coincidence rate) of vegetation low-growth to four climate extremes (drought, extreme wet, extreme hot and cold) using Normalized Difference Vegetation Index (NDVI) and solar-induced chlorophyll fluorescence (SIF) over TP for the period 2001 to 2018. We found notable changes in the susceptibility of vegetation low-growth to climate extremes along climate gradients, with higher susceptibility to extreme hot generally being found in warmer regions, while higher susceptibility to extreme cold in colder regions. Meanwhile, susceptibility to drought decreased while that to extreme wet increased with increasing precipitation. We also found higher susceptibility of herbaceous plants for drought and extreme hot than woody plants, but their susceptibility to extreme wet and cold was relatively lower. The varied vegetation susceptibility to climate extremes along climate gradient and among different vegetation types were due to the sensitivity of vegetation to climate variability, rather than the intensity or frequency of climate extremes. This study identified the ecological sensitive regions under climate extreme events, and highlighted the risk of decline in vegetation growth under warm-droughts in spite of a wetting climate over Tibetan Plateau.
英文关键词	Climate extreme; Vegetation dynamic; Tibetan Plateau; Coincidence rate; Sensitivity
语种	英语
WOS研究方向	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000922463900001
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281168
作者单位	Peking University; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Zhang, Yichen,Hong, Songbai,Liu, Dan,et al. Susceptibility of vegetation low-growth to climate extremes on Tibetan Plateau[J]. 中国科学院青藏高原研究所,2023,331.
APA	Zhang, Yichen,Hong, Songbai,Liu, Dan,&Piao, Shilong.(2023).Susceptibility of vegetation low-growth to climate extremes on Tibetan Plateau.AGRICULTURAL AND FOREST METEOROLOGY,331.
MLA	Zhang, Yichen,et al."Susceptibility of vegetation low-growth to climate extremes on Tibetan Plateau".AGRICULTURAL AND FOREST METEOROLOGY 331(2023).