Wydanie 330(40)4 2016

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https://oa.zut.edu.pl/handle/20.500.12539/707

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    PozycjaOpen Access
    Assessment of agro-meteorological conditions of the vegetation period in 2015 in the Szczecin lowland
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016) Rawicki, Kacper; Mąkosza, Agnieszka; Institute of Technology and Life Sciences, West Pomeranian Research Centre in Szczecin; Department of Meteorology and Green Areas Management, West Pomeranian University of Technology, Szczecin
    The present study presents the analysis of thermal and pluviometric conditions on the basis of selected agro-meteorological indices in the vegetation period (IV–X) in 2015 in the Szczecin Lowland against the reference period of 1961–2014. With the use of the results of automatic measurements of air temperature, the following were identified: the beginning, the end and duration of vegetation period, as well as the sum of effective temperatures above the 5oC threshold. Additionally, the months were thermally classified according to Lorenc (2000) and the pluviometric conditions were assessed with the use of standardised precipitation index (SPI). It was found that in 2015 in the Szczecin Lowland, the thermal vegetation period lasted for 257 days with the date of beginning 19th of March, and the ending date 30th November. Therefore, the period was by 26 days longer than the average and fourth in terms of length as compared with the reference multi-year period. As compared to thermal conditions till the second half of the 1990s, the vegetation period under analysis was marked by high heat resources – the resources were average in comparison to the last several years. However, according to thermal classification, the period was characterised by average thermal conditions, yet the shortage of precipitation resulted in severe atmospheric drought as defined by the values of SPI index. The most unfavorable weather conditions were recorded in August which was marked by abnormally warm thermal conditions and extreme atmospheric drought.