Responses of spring phenology in temperate zone trees to climate warming: A case study of apricot flowering in China
文献类型：SCI/SSCI论文
| 作者 | Guo L.; Dai, J. H.; Wang, M. C.; Xu, J. C.; Luedeling, E. |
| 发表日期 | 2015 |
| 关键词 | Climate warming Flowering Partial Least Squares regression Prunus armeniaca L. Spring phenology Temperate zone plants fruit-trees heat requirements dormancy breaking cherry trees winter trends plants release europe apple |
| 英文摘要 | The timing of spring phenology in most temperate zone plants results from the combined effects of both autumn/winter cold and spring heat. Temperature increases in spring can advance spring phases, but warming in autumn and winter may slow the fulfilment of chilling requirements and lead to later onset of spring events, as evidenced by recent phenology delays in response to warming at some locations. As warming continues, the phenology-delaying impacts of higher autumn/winter temperatures may increase in importance, and could eventually attenuate - or even reverse - the phenology-advancing effect of warming springs that has dominated plant responses to climate change so far. To test this hypothesis, we evaluated the temperature responses of apricot bloom at five climatically contrasting sites in China. Long-term records of first flowering dates were related to temperature data at daily resolution, and chilling and forcing periods were identified by Partial Least Squares (PLS) regression of bloom dates against daily chill and heat accumulation rates. We then analyzed the impacts of temperature variation during the chilling and forcing periods on tree flowering dates for each site. Results indicated that in cold climates, spring timing of apricots is almost entirely determined by forcing conditions, with warmer springs leading to earlier bloom. However, for apricots at warmer locations, chilling temperatures were the main driver of bloom timing, implying that further warming in winter might cause delayed spring phases. As global warming progresses, current trends of advancing phenology might slow or even turn into delays for increasing numbers of temperate species. (C) 2014 The Authors. Published by Elsevier B.V. |
| 出处 | Agricultural and Forest Meteorology |
| 卷 | 201 |
| 页 | 1-7 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0168-1923 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38630]  |
| 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 | Guo L.,Dai, J. H.,Wang, M. C.,et al. Responses of spring phenology in temperate zone trees to climate warming: A case study of apricot flowering in China. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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