The period of intense vegetation growth and maturing of plants in north-western Poland
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Date
2017
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Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk
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Abstract
The objective of the study consisted in determining the changeability of the dates of commencement
and termination of the period of intense vegetation growth and the period of maturing of plants in
north-western Poland, and also the respective durations thereof. Use was made of data concerning average
monthly air temperatures for the years 1966–2015, which were obtained from the collections of the Institute of
Meteorology and Water Management – National Research Institute. The period of intense vegetation growth
has been defined as a period with average daily air temperature of ≥ 10oC, whereas the period of maturing of
plants as one with an average daily air temperature of ≥ 15oC. The dates of commencement and termination
of the aforementioned periods were determined using mathematical formulae proposed by Gumiński. On average,
the period of intense vegetation growth commenced 3 days/10 years earlier and terminated 1 day/10 years
later. In turn, the period of maturing of plants commenced on average 2 days/10 years earlier and terminated on
average 2 days/10 years later. Research also revealed an increase in the duration of both the period of intense
vegetation growth, and the period of maturing of plants in north-western Poland.
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period of intense vegetation growth, period of maturing of plants, north-western Poland
Citation
Badania Fizjograficzne, Seria A, Tom 68, 2017, s. 223-232