Spring phenology outweighed climate change in determining autumn phenology on the Tibetan Plateau

doi:10.1002/joc.7045

	Spring phenology outweighed climate change in determining autumn phenology on the Tibetan Plateau
	Peng, Jie 1,2; Wu, Chaoyang 1,2; Wang, Xiaoyue 1,2; Lu, Linlin 3
刊名	INTERNATIONAL JOURNAL OF CLIMATOLOGY
	2021-02-19
页码	18
关键词	autumn phenology climate change spring phenology Tibetan Plateau
ISSN号	0899-8418
DOI	10.1002/joc.7045
通讯作者	Wu, Chaoyang(wucy@igsnrr.ac.cn)
英文摘要	As the third pole of the Earth, the Tibetan Plateau (TP) is highly sensitive to climate change. Phenological changes in spring (i.e., the start of the growing season, SOS) over the TP are of much debate, while our understanding on the variation of autumn phenology (i.e., the end of the growing season, EOS) is still lacking. Given the significance of tracing the latest variation of EOS induced by the ongoing global change, we used the currently longest time series (1982-2018) of the normalized difference vegetation index of the Long Term Data Record from the Advanced Very High Resolution Radiometer (AVHRR LTDR NDVI) and investigated the responses of EOS to biological and climatic factors. We found that the EOS showed an insignificantly delayed trend at an average rate of 0.14 days center dot decade(-1) on the TP. This variation was found for all vegetation types except for alpine sparse vegetation. We further showed that spring SOS had the largest contribution to the interannual variations in EOS, where 46.5% of the vegetated areas showed significantly positive correlations between SOS and EOS (p < .05). Temperature (26.5%) and precipitation (18.8%) also had significant positive impacts on EOS, while the contribution of radiation was negative (11.3%). These correlations were regulated by local hydrothermal conditions, especially for precipitation gradients. Using the longest satellite data currently available, with the state-of-art data processing, we demonstrated a weakly delaying trend of EOS and the controlling role of spring phenology on the interannual variability of EOS, which is of great significance to improve our comprehension of the interactions between vegetation dynamics and climate change in the future.
资助项目	Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC011] ; National Natural Science Foundation of China[41871255] ; National Natural Science Foundation of China[41901359] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040103]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	WILEY
WOS记录号	WOS:000619669700001
资助机构	Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/160679]
专题	中国科学院地理科学与资源研究所
通讯作者	Wu, Chaoyang
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Peng, Jie,Wu, Chaoyang,Wang, Xiaoyue,et al. Spring phenology outweighed climate change in determining autumn phenology on the Tibetan Plateau[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2021:18.
APA	Peng, Jie,Wu, Chaoyang,Wang, Xiaoyue,&Lu, Linlin.(2021).Spring phenology outweighed climate change in determining autumn phenology on the Tibetan Plateau.INTERNATIONAL JOURNAL OF CLIMATOLOGY,18.
MLA	Peng, Jie,et al."Spring phenology outweighed climate change in determining autumn phenology on the Tibetan Plateau".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2021):18.