DOI: 10.1002/joc.5713
论文题名: The strength of flowering–temperature relationship and preseason length affect temperature sensitivity of first flowering date across space
作者: Xu Y. ; Wang H. ; Ge Q. ; Wu C. ; Dai J.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 13 起始页码: 5030
结束页码: 5036
语种: 英语
英文关键词: central Europe
; China
; flowering phenology
; preseason
; spatial pattern
; temperature sensitivity
Scopus关键词: Biology
; Correlation methods
; Regression analysis
; Central Europe
; China
; Flowering phenology
; Preseason
; Spatial patterns
; Temperature sensitivity
; Climate change
; climate change
; flowering
; phenology
; spatial variation
; temperature effect
; woody plant
; Central Europe
; China
; Betula pendula
; Fraxinus excelsior
英文摘要: Temperature sensitivity (ST) of phenology, defined as the shift of phenophase with per unit change of preseason temperature, has been widely used to quantify phenological response to climate change. The spatial variation in ST of spring phenology has been well studied for several woody plants, but how to explain it became a challenge. Several hypotheses to explain the spatial variation in ST have been proposed, but studies examining all potential factors together were very limited. In this study, using first flowering date (FFD) data for five widespread woody plants at 47 stations in China and the other five species at 421 stations in central Europe during 1964–2014, we calculated ST by using the Sen's slope of FFD on mean preseason temperature for each species at each station. Subsequently, multiple regression analysis was applied to examining whether ST followed the geographical (latitudinal, longitudinal, or vertical) gradients. At last, four potential influencing factors of ST were tested by Spearman partial correlation analysis. We found that ST of FFD was higher at lower latitude for most species in China. However, in central Europe, the variation of ST did not follow the geographical gradient for most species. Only one species (Fraxinus excelsior) showed a latitudinal gradient, and one (Betula pendula) showed a longitudinal gradient. For most species in both regions, the strength of FFD–temperature relationship and the preseason length could account for the spatial variation of ST to a more considerable extent compared to preseason temperature variance and chilling conditions. Our results suggest that we need to consider the effects of multiple factors on phenological response to temperature when simulating future phenological change. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116762
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Xu Y.,Wang H.,Ge Q.,et al. The strength of flowering–temperature relationship and preseason length affect temperature sensitivity of first flowering date across space[J]. International Journal of Climatology,2018-01-01,38(13)