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Contrasting responses of autumn-leaf senescence to daytime and night-time warming

文献类型：期刊论文

作者Wu, Chaoyang1,13; Wang, Xiaoyue1,13; Wang, Huanjiong1,13; Ciais, Philippe14; Penuelas, Josep15,16; Myneni, Ranga B.8; Desai, Ankur R.9; Gough, Christopher M.10; Gonsamo, Alemu11; Black, Andrew T.1,13
刊名NATURE CLIMATE CHANGE
出版日期2018-12-01
卷号8期号:12页码:1092-+
ISSN号1758-678X
DOI10.1038/s41558-018-0346-z
通讯作者Wu, Chaoyang(wucy@igsnrr.ac.cn) ; Wang, Huanjiong(wanghj@igsnrr.ac.cn) ; Ge, Quansheng(geqs@igsnrr.ac.cn)
英文摘要Plant phenology is a sensitive indicator of climate change(1-4) and plays an important role in regulating carbon uptake by plants(5-7). Previous studies have focused on spring leaf-out by daytime temperature and the onset of snow-melt time(8,9), but the drivers controlling leaf senescence date (LSD) in autumn remain largely unknown(10-12). Using long-term ground phenological records (14,536 time series since the 1900s) and satellite greenness observations dating back to the 1980s, we show that rising pre-season maximum daytime (T-day) and minimum night-time (T-night) temperatures had contrasting effects on the timing of autumn LSD in the Northern Hemisphere (>20 degrees N). If higher T-day leads to an earlier or later LSD, an increase in T-night systematically drives LSD to occur oppositely. Contrasting impacts of daytime and night-time warming on drought stress may be the underlying mechanism. Our LSD model considering these opposite effects improved autumn phenology modelling and predicted an overall earlier autumn LSD by the end of this century compared with traditional projections. These results challenge the notion of prolonged growth under higher autumn temperatures, suggesting instead that leaf senescence in the Northern Hemisphere will begin earlier than currently expected, causing a positive climate feedback.
WOS关键词GROWING-SEASON LENGTH ; VEGETATION PHENOLOGY ; CLIMATE-CHANGE ; NORTHERN-HEMISPHERE ; TIME-SERIES ; SNOW COVER ; CHINA ; PRODUCTIVITY ; METAANALYSIS ; FEEDBACKS
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040103] ; International Cooperation and Exchange Programs of National Science Foundation of China[41761134082] ; National Natural Science Foundation of China[41522109] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC011] ; European Research Council Synergy[ERC-SyG-2013-610028 IMBALANCE-P] ; Ned P. Smith Professorship of Climatology, University of Wisconsin-Madison
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000451919500021
出版者NATURE PUBLISHING GROUP
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; International Cooperation and Exchange Programs of National Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; European Research Council Synergy ; Ned P. Smith Professorship of Climatology, University of Wisconsin-Madison
源URL[http://ir.igsnrr.ac.cn/handle/311030/51468]  
专题中国科学院地理科学与资源研究所
通讯作者Wu, Chaoyang; Wang, Huanjiong; Ge, Quansheng
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing, Jiangsu, Peoples R China
3.Sun Yat Sen Univ, Ctr Monsoon & Environm Res, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China
4.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China
5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
6.Univ Elect Sci & Technol China, Sch Resources & Environm, Chengdu, Sichuan, Peoples R China
7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
8.Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA
9.Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA
10.Virginia Commonwealth Univ, Dept Biol, Richmond, VA 23284 USA
推荐引用方式
GB/T 7714		 Wu, Chaoyang,Wang, Xiaoyue,Wang, Huanjiong,et al. Contrasting responses of autumn-leaf senescence to daytime and night-time warming[J]. NATURE CLIMATE CHANGE,2018,8(12):1092-+.
APA Wu, Chaoyang.,Wang, Xiaoyue.,Wang, Huanjiong.,Ciais, Philippe.,Penuelas, Josep.,...&Ge, Quansheng.(2018).Contrasting responses of autumn-leaf senescence to daytime and night-time warming.NATURE CLIMATE CHANGE,8(12),1092-+.
MLA Wu, Chaoyang,et al."Contrasting responses of autumn-leaf senescence to daytime and night-time warming".NATURE CLIMATE CHANGE 8.12(2018):1092-+.

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来源：地理科学与资源研究所

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