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EN
The aim of the paper was to investigate the stimuli of the atmospheric pressure and the dependence of large pressure changes on atmospheric circulation in Poznań. The values of the average daily atmospheric pressure from the Poznań-Ławica meteorological station in years 1988-2017 were used. The frequency of days with atmospheric pressure greater than 1015 hPa and lower than 985 hPa as well as the number of days with interdiurnal change of the atmospheric pressure were calculated in specified ranges: 0.0-4.0 hPa, 4.1-8.0 hPa, 8.1-16.0 hPa and >16.1 hPa. Next, the conditional probability of the interdiurnal changes of the air pressure and the Grosswetterlagen (GWL) types of atmospheric circulation was determined. In Poznań in 1988–2017, the most stimulus air pressure changes occurred between November and February and the least stimulus – from May to August. Strong and very strong stimulus of atmospheric pressure is most often found in cyclonic circulation types with masses of air flowing from north-western directions.
EN
The paper presents the list of fungi taxa, which were discovered in the area of the Adam Mickiewicz University Morasko campus in Poznań. The investigations were conducted in the years 1979–1980 and 2002–2018. All plant formations (fragments of forests, afforestations, shrubs, swards, meadows, lawns and patches of synanthropic vegetation) were penetrated. In total, 261 species of macrofungi were found. Some of them were collected only in the first period of investigations.
EN
Field studies on anthropogenic psammophilous swards of the Sileno conicae-Cerastion semidecandri alliance were carried out in the years 2015–2016 in the area of the Adam Mickiewicz University Morasko campus in Poznań, Poland. As a result of a classical table analysis of phytosociological data, five associations were distinguished. The relevés have been arranged with the use of PCA and CCA ordination methods to study the overall variability of the examined communities and their position along some environmental gradients. In the paper, issues concerning successional dynamics and the synsystematical position of swards of the studied type, are also raised.
EN
Geography is traditionally perceived as a discipline of science dealing with the spatial diversity of the outer shell of the earth, and the relations between its components and human activity (Tkocz, 2005). The identification of relations and correlations, constructing hypotheses and, finally, observations and measurements are among the most important skills of applying knowledge in practice (Regulation of the Ministry of Education of 14 February 2017 on the core curriculum). In a world of dynamic acquisition of factual knowledge, practical skills are gaining in importance, together with the ability to select information and search for it. Connectivity is the answer to contemporary trends in education, viewed as the theories of education, perceiving knowledge as a set of network connections between objects. In this perspective, learning is about establishing and developing such connections (Downes, 2017). This idea promotes abstaining from fact-based knowledge or even concept development and to look for facts, collect and process them. As part of “Łejery! What kind of weather is this?!” carried out by the school (project organizer), Faculty of Geographic and Geological Sciences (the content-related sponsor) and the Enea company (sponsor of the Enea Academy of Talents project), a self-organising map was created in accordance with the theory of constructivism. By means of measurements and exchanging information, the students can empirically and single-handedly acquire their own knowledge and practical skills.
EN
Investigations concerned the effect of different environmental variables on health condition of English oak (Quercus robur L.). It was shown that in the public parks in the city of Poznan the health condition of the analysed species is good. It was stated that health condition of this species in the Poznan parks is influenced by the distance from the immediate city centre, vicinity of traffic arteries and gas emissions from the combustion of fossil fuels by households neighbouring with the parks. Although results recorded in this study confirm literature data concerning the effect of environmental variables on health condition of English oak (Quercus robur L.), it was shown that certain environmental variables have a greater effect on health condition of the analysed species in Poznan.
PL
Badania dotyczyły wpływu różnych zmiennych środowiskowych na stan zdrowotny dębu szypułkowego (Quercus robur L.). Wykazano, że na terenie parków publicznych Poznania stan zdrowotny omawianego gatunku jest dobry. Stwierdzono, że wpływ na stan zdrowotny tego gatunku w parkach Poznania mają: oddalenie od ścisłego centrum miasta, bliskość arterii komunikacyjnych oraz emisja gazów ze spalania paliw kopalnych przez sąsiadujące z parkami gospodarstwa domowe. Mimo że wyniki uzyskane w pracy potwierdzają dane literaturowe dotyczące wpływu zmiennych środowiskowych na stan zdrowotny dębu szypułkowego (Quercus robur L.), to wykazano, że niektóre zmienne środowiskowe mają większy wpływ na stan zdrowotny badanego gatunku w Poznaniu.
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