Widespread decline in winds delayed autumn foliar senescence over high latitudes

doi:10.1073/pnas.2015821118

	Widespread decline in winds delayed autumn foliar senescence over high latitudes
	Wu, Chaoyang 4,5; Wang, Jian 6; Ciais, Philippe 7; Penuelas, Josep 8,9; Zhang, Xiaoyang 10; Sonnentag, Oliver 1,11; Tian, Feng 2; Wang, Xiaoyue 4,5; Wang, Huanjiong 4,5; Liu, Ronggao 4,5
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2021-04-20
卷号	118 期号:16 页码:10
关键词	climate change foliar senescence high latitudes
ISSN号	0027-8424
DOI	10.1073/pnas.2015821118
通讯作者	Wu, Chaoyang(wucy@igsnrr.ac.cn) ; Wang, Jian(wang.12679@osu.edu) ; Ge, Quansheng(geqs@igsnrr.ac.cn)
英文摘要	The high northern latitudes (>50 degrees) experienced a pronounced surface stilling (i.e., decline in winds) with climate change. As a drying factor, the influences of changes in winds on the date of autumn foliar senescence (DFS) remain largely unknown and are potentially important as a mechanism explaining the interannual variability of autumn phenology. Using 183,448 phenological observations at 2,405 sites, long-term site-scale water vapor and carbon dioxide flux measurements, and 34 y of satellite greenness data, here we show that the decline in winds is significantly associated with extended DFS and could have a relative importance comparable with temperature and precipitation effects in contributing to the DFS trends. We further demonstrate that decline in winds reduces evapotranspiration, which results in less soil water losses and consequently more favorable growth conditions in late autumn. In addition, declining winds also lead to less leaf abscission damage which could delay leaf senescence and to a decreased cooling effect and therefore less frost damage. Our results are potentially useful for carbon flux modeling because an improved algorithm based on these findings projected overall widespread earlier DFS than currently expected by the end of this century, contributing potentially to a positive feedback to climate.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040103] ; National Key R&D program of China[2018YFA0606101] ; National Natural Science Foundation of China[41871255] ; National Natural Science Foundation of China[42001299] ; National Natural Science Foundation of China[41761134082] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC011] ; CAS Interdisciplinary Innovation Team[JCTD-2020-05] ; National Funds for Distinguished Young Scholars[42025101] ; European Research Council[ERC-SyG-2013-610028 IMBALANCE] ; German Research Foundation[41761134082]
WOS关键词	CLIMATE-CHANGE ; NORTHERN-HEMISPHERE ; LEAF SENESCENCE ; GROWING-SEASON ; PLANT-GROWTH ; PHENOLOGY ; FORESTS ; PRODUCTIVITY ; FEEDBACKS ; RESPONSES
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATL ACAD SCIENCES
WOS记录号	WOS:000642462800021
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; CAS Interdisciplinary Innovation Team ; National Funds for Distinguished Young Scholars ; European Research Council ; German Research Foundation
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161578]
专题	中国科学院地理科学与资源研究所
通讯作者	Wu, Chaoyang; Wang, Jian; Ge, Quansheng
作者单位	1.Univ Montreal, Ctr Etud Nord, Montreal, PQ H2V 2B8, Canada 2.Wuhan Univ, Sch Remote Sensing & Informat Engn, Wuhan 430079, Peoples R China 3.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Ohio State Univ, Dept Geog, Columbus, OH 43210 USA 7.IPSL LSCE CEA CNRS UVSQ, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France 8.CSIC, Global Ecol Unit CREAF CSIC UAB, Barcelona 08193, Spain 9.CREAF, Cerdanyola Valles, Barcelona 08193, Catalonia, Spain 10.South Dakota State Univ, Dept Geog, Geospatial Sci Ctr Excellence, Brookings, SD 57007 USA
推荐引用方式 GB/T 7714	Wu, Chaoyang,Wang, Jian,Ciais, Philippe,et al. Widespread decline in winds delayed autumn foliar senescence over high latitudes[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2021,118(16):10.
APA	Wu, Chaoyang.,Wang, Jian.,Ciais, Philippe.,Penuelas, Josep.,Zhang, Xiaoyang.,...&Ge, Quansheng.(2021).Widespread decline in winds delayed autumn foliar senescence over high latitudes.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(16),10.
MLA	Wu, Chaoyang,et al."Widespread decline in winds delayed autumn foliar senescence over high latitudes".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.16(2021):10.