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	Characteristics of Spring Phenological Changes in China over the Past 50 Years
	Dai J. H. ; Wang H. J. ; Ge Q. S.
	2014
关键词	climate-change temperate trees plant phenology eastern china responses budburst japan predict pattern dates
英文摘要	In order to understand past plant phenological responses to climate change in China (1963-2009), we conducted trends analysis of spring phenophases based on observation data at 33 sites from the Chinese Phenological Observation Network (CPON). The phenological data on first leaf date (FLD) and first flowering date (FFD) for five broad-leaved woody plants from 1963 to 2009 were analyzed. Since most phenological time series are discontinuous because of observation interruptions at certain period, we first interpolated phenological time series by using the optimal model between the spring warming (SW) model and the UniChill model to form continuous time series. Subsequently, by using regression analysis, we found that the spring phenophases of woody plants in China advanced at a mean rate of 0.18 days/year over the past 50 years. Changes of spring phenophases exhibited strong regional difference. The linear trends in spring phenophases were -0.18, -0.28, -0.21, -0.04, and -0.14 days/year for the Northeast China Plain, the North China Plain, the Middle-Lower Yangtze Plain, the Yunnan-Guizhou Plateau, and South China, respectively. The spatial differences in phenological trends can be attributed to regional climate change patterns in China.
出处	Advances in Meteorology
收录类别	SCI
语种	英语
ISSN号	1687-9309
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29928]
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	Dai J. H.,Wang H. J.,Ge Q. S.. Characteristics of Spring Phenological Changes in China over the Past 50 Years. 2014.

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