气候变化领域集成服务门户(CCPortal): Leaf onset in the northern hemisphere triggered by daytime temperature

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DOI	10.1038/ncomms7911
	Leaf onset in the northern hemisphere triggered by daytime temperature
	Piao, Shilong; Tan, Jianguang; Chen, Anping; Fu, Yongshuo H.; Ciais, Philippe; Liu, Qiang; Janssens, Ivan A.; Vicca, Sara; Zeng, Zhenzhong; Jeong, Su-Jong; Li, Yue; Myneni, Ranga B.; Peng, Shushi; Shen, Miaogen; Penuelas, Josep
通讯作者	Piao, S (通讯作者)
发表日期	2015
ISSN	2041-1723
卷号	6
英文摘要	Recent warming significantly advanced leaf onset in the northern hemisphere. This signal cannot be accurately reproduced by current models parameterized by daily mean temperature (T-mean). Here using in situ observations of leaf unfolding dates (LUDs) in Europe and the United States, we show that the interannual anomalies of LUD during 1982-2011 are triggered by daytime (T-max) more than by nighttime temperature (T-min). Furthermore, an increase of 1 degrees C in T-max would advance LUD by 4.7 days in Europe and 4.3 days in the United States, more than the conventional temperature sensitivity estimated from T-mean. The triggering role of T-max, rather than the T-min or T-mean variable, is also supported by analysis of the large-scale patterns of satellite-derived vegetation green-up in spring in the northern hemisphere (>30 degrees N). Our results suggest a new conceptual framework of leaf onset using daytime temperature to improve the performance of phenology modules in current Earth system models.
关键词	CLIMATE-CHANGE SPRING PHENOLOGY GLOBAL CHANGE ANNUAL CYCLE VEGETATION MODEL CO2 LATITUDES TREES
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000353704100019
来源期刊	NATURE COMMUNICATIONS
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/258613
推荐引用方式 GB/T 7714	Piao, Shilong,Tan, Jianguang,Chen, Anping,et al. Leaf onset in the northern hemisphere triggered by daytime temperature[J]. 中国科学院青藏高原研究所,2015,6.
APA	Piao, Shilong.,Tan, Jianguang.,Chen, Anping.,Fu, Yongshuo H..,Ciais, Philippe.,...&Penuelas, Josep.(2015).Leaf onset in the northern hemisphere triggered by daytime temperature.NATURE COMMUNICATIONS,6.
MLA	Piao, Shilong,et al."Leaf onset in the northern hemisphere triggered by daytime temperature".NATURE COMMUNICATIONS 6(2015).