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	Advance of tree-flowering dates in response to urban climate change
	Yu Q.
	2006
关键词	tree phenology flowering date climate warming temperature urban heat island Beijing minimum temperature phenology trends china europe plants model maximum estonia
英文摘要	An increase in temperature due to greenhouse effects is manifest in the changes in diurnal, annual and inter-annual patterns, which may alter phenological events in plants. Flowering dates of four tree species, Prunus davidina, Prunus armeniaca, Robinia pseudoacacia and Syringa oblata, were significantly advanced in response to temperature increase over the years 1950-2004 in Beijing, China, due to the impact of urban climate warming. Because both climate warming and the urban heat island effect in winter and early-spring were more rapid than in late-spring and early summer, the dates in early flowering species advanced more quickly than in late flowering species. The early flowering species, P. davidina, advanced by 2.9 days/decade, while the other species advanced by 1.5-2.0 days/decade during 1950-2004. Therefore, the intervals between flowering dates of different species were expanded. P davidina, flowering in early-spring, was much more sensitive to minimum and average temperatures (2.88-2.96 days/degrees C), but less sensitive to maximum temperature (2.46 days/degrees C). R. pseudoacacia, flowering late in the warmer season, was more sensitive to average and maximum temperatures (2.45-2.89 days/degrees C), but less sensitive to minimum temperature (1.91 days/degrees C). Statistical analysis showed that, in Beijing, plant flowering is most sensitive to average temperature over 30 days before average blossom date. On the basis of the temperature response curve, the goodness of fitting demonstrates that spring flowering dates can be predicted from the period when temperature is over 0 degrees C. (c) 2006 Elsevier B.V. All rights reserved.
出处	Agricultural and Forest Meteorology
卷	138
期	1-4
页	120-131
收录类别	SCI
语种	英语
ISSN号	0168-1923
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23353]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yu Q.. Advance of tree-flowering dates in response to urban climate change. 2006.

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