Grewling, Ł., Jackowiak, B., Nowak, M., Uruska, A. and Smith, Matt ORCID: https://orcid.org/0000-0002-4170-2960 (2012) Variations and Trends of Birch Pollen Seasons During 15 Years (1996-2010) in Relation to Weather Conditions in Poznan (Western Poland). Grana, 51 (4). pp. 280-292. ISSN 0017-3134 Online: 1651-2049
Full text not available from this repository. (Request a copy)Abstract
Abstract Birch (Betula) pollen seasons were examined in relation to meteorological conditions in Poznan (1996-2010). Birch pollen grains were collected using a volumetric spore trap. An alternate biennial cycle of birch pollen season intensity was noticed in Poznan. The main factors influencing birch pollen season intensity were average daily minimum temperatures during the second fortnight of May and the month of June one year before pollination as well as the intensity of the pollen season of the previous year. Most of the pollen grains are recorded during the first week of the season; the number of pollen grains recorded at this time is positively correlated with mean maximum temperature and negatively correlated with daily rainfall. The significant effect of rainfall in reducing the season pollen index was noticed only during weak pollen seasons (season pollen index <mean). In addition, mean daily maximum temperature during the first two weeks of the birch pollen season markedly influences its duration. No significant trends in duration and intensity of the pollen season were recorded, however, a slight tendency towards early pollination was observed (0.4 days/year, p=0.310).
Item Type: | Article |
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Additional Information: | Staff and students at the University of Worcester can access the full-text via the UW online library search. External users should check availability with their local library or Interlibrary Requests Service. |
Uncontrolled Discrete Keywords: | Betula, biennial cycle, meteorological parameters, climate change |
Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences |
Divisions: | College of Health, Life and Environmental Sciences > School of Science and the Environment |
Related URLs: | |
Depositing User: | Matthew Smith |
Date Deposited: | 20 Jul 2017 13:50 |
Last Modified: | 08 Sep 2020 04:00 |
URI: | https://eprints.worc.ac.uk/id/eprint/5727 |
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