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Short photoperiod reduces the temperature sensitivity of leaf-out in saplings of Fagus sylvatica but not in horse chestnut
Fu, YSH (Fu, Yongshuo H.)1,2; Piao, SL (Piao, Shilong)3,4,5; Zhou, XC (Zhou, Xuancheng)1; Geng, XJ (Geng, Xiaojun)1; Hao, FH (Hao, Fanghua)1; Vitasse, Y (Vitasse, Yann)6,7; Janssens, IA (Janssens, Ivan A.)2
Source PublicationGLOBAL CHANGE BIOLOGY
2019
Volume25Issue:5Pages:1696-1703
DOI10.1111/gcb.14599
Abstract

Leaf phenology is one of the most reliable bioindicators of ongoing global warming in temperate and boreal zones because it is highly sensitive to temperature variation. A large number of studies have reported advanced spring leaf-out due to global warming, yet the temperature sensitivity of leaf-out has significantly decreased in temperate deciduous tree species over the past three decades. One of the possible mechanisms is that photoperiod is limiting further advance to protect the leaves against potential damaging frosts. However, the "photoperiod limitation" hypothesis remains poorly investigated and experimentally tested. Here, we conducted a photoperiod- and temperature-manipulation experiment in climate chambers on two common deciduous species in Europe: Fagus sylvatica (European beech, a typically late flushing species) and Aesculus hippocastanum (horse chestnut, a typically early flushing species). In agreement with previous studies, we found that the warming significantly advanced the leaf-out dates by 4.3 and 3.7 days/degrees C for beech and horse chestnut saplings, respectively. However, shorter photoperiod significantly reduced the temperature sensitivity of beech only (3.0 days/degrees C) by substantially increasing the heat requirement to avoid leafing-out too early. Interestingly, the photoperiod limitation only occurs below a certain daylength (photoperiod threshold) when the warming increased above 4 degrees C for beech trees. In contrast, for chestnut, no photoperiod threshold was found even when the ambient air temperature was warmed by 5 degrees C. Given the species-specific photoperiod effect on leaf phenology, the sequence of the leaf-out timing among forest tree species may change under future climate warming conditions. Nonphotoperiodic species may benefit from warmer springs by starting the growing season earlier than photoperiodic sensitive species, modifying forest ecosystem structure and functions, but this photoperiod limitation needs to be further investigated experimentally in numerous species.

Subject AreaEnvironmental Sciences & Ecology
WOS IDWOS:000465103600011
Language英语
Indexed BySCI
KeywordSpring Phenology Tree Phenology Climate-change Responses Budburst Feedbacks Shifts Times
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Ecology ; Environmental Sciences
Cooperation Status国际
ISSN1354-1013
Department高寒生态与人类适应
URL查看原文
PublisherWILEY
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9323
Collection图书馆
Corresponding AuthorFu, YSH (Fu, Yongshuo H.); Hao, FH (Hao, Fanghua)
Affiliation1.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China;
2.Univ Antwerp, Dept Biol, Antwerp, Belgium;
3.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing, Peoples R China;
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China;
5.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Beijing, Peoples R China;
6.Swiss Fed Inst Forest Snow & Landscape Res WSL, Birmensdorf, Switzerland;
7.SwissForestLab, Birmensdorf, Switzerland.
Recommended Citation
GB/T 7714
Fu, YSH ,Piao, SL ,Zhou, XC ,et al. Short photoperiod reduces the temperature sensitivity of leaf-out in saplings of Fagus sylvatica but not in horse chestnut[J]. GLOBAL CHANGE BIOLOGY,2019,25(5):1696-1703.
APA Fu, YSH .,Piao, SL .,Zhou, XC .,Geng, XJ .,Hao, FH .,...&Janssens, IA .(2019).Short photoperiod reduces the temperature sensitivity of leaf-out in saplings of Fagus sylvatica but not in horse chestnut.GLOBAL CHANGE BIOLOGY,25(5),1696-1703.
MLA Fu, YSH ,et al."Short photoperiod reduces the temperature sensitivity of leaf-out in saplings of Fagus sylvatica but not in horse chestnut".GLOBAL CHANGE BIOLOGY 25.5(2019):1696-1703.
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