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The trend to earlier birch pollen seasons in the U.K.: A biotic response to changes in weather conditions?

 

作者: Jean Emberlin,   John Mullins,   Julie Corden,   Wendy Millington,   Marion Brooke,   Mike Savage,   Sandra Jones,  

 

期刊: Grana  （Taylor Available online 1997）
卷期: Volume 36, issue 1  

页码: 29-33

 

ISSN:0017-3134

 

年代: 1997

 

DOI:10.1080/00173139709362586

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Records of the start of Birch pollen seasons monitored at three sites in the UK for periods of up to forty two years indicate a recent trend for the pollen seasons to begin earlier. This trend shows a close relationship to an increase in cumulative temperatures in the months of January, February and March recorded near each of the sites during the study period.

 

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