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    Wyświetlanie 1-5 z 5
    Tytuł:
    Air temperature variability on the silesian lowlands in the years 1957-2014
    Autorzy:
    Włodek, S.
    Sikora, J.
    Pawęska, K.
    Biskupski, A.
    Owsiak, Z.
    Maga, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/101462.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    average annual
    average monthly air temperatures
    number of days
    Silesian Lowland
    Opis:
    Results of air temperature measurements in the 1957-2014 multi-annual period were analysed in the paper. The data originated from Jelcz-Laskowice locality situated in the south-western part of Poland, at the flat part of the Lower Silesia, on Silesian Lowlands. Average annual and monthly air temperatures and the number of days of thermal seasons duration were analysed. Trends of changes were set and extreme values of average monthly air temperatures were analysed. Mean annual air temperatures in the studied multi-annual period revealed a tendency to increase. Average monthly extreme values of the analysed factor revealed a similar direction of changes; however, more apparent changes occurred for the maximum values. Over the analysed period, average monthly air temperatures revealed a tendency to increase. The most serious changes occurred in July, slightly lesser in August, May and April. The number of days in the years 1957-2014 in the interval limited by the air temperature threshold values: 0°C, 5°C and 15°C was greatly diversified. Analysed results had a clear growing tendency for the summer, slightly lower for the spring, but evidently declining for the autumn.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/3; 1877-1886
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Early Vistulian climate oscillations in the light of pollen analysis of deposits from Dziadowa Kłoda (Silesian Lowland, Poland)
    Autorzy:
    Kuszell, T.
    Chmal, R.
    Słychan, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059521.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Silesian Lowland
    Eemian Interglacial
    Early Vistulian
    Brörup Interstadial
    climate oscillations
    palynology
    Opis:
    The stratigraphy and palaeogeography of Quaternary deposits under lying the Oleoenica Plain were investigated during mapping of the Syców sheet of the De tailed Geo logical Map of Poland on the scale of 1:50 000. The Oleoenica Plain is part of the southern foreland of the Trzebnica Ridge, the latter representing a frontal moraine of the South and Middle Polish Glaciations. Neopleistocene deposits found at the Dziadowa Kłoda site were analyzed for their pollen content. These lacus trine to swamp deposits represent a continuous and undisturbed sequence spanning the Eemian Interglacial to Brörup Interstadial interval. The Early Vistulian deposits have been the subject of detailed palynological investigations. The reconstructed pattern of vegetation changes has allowed a precise determination of the upper boundary of the last interglacial as well as the recognition of stadial-interstadial horizons. Three climatic oscillations have been noted, corresponding to the Herning and Rederstallstadials and the Brörup Interstadial. In the climatic optimum of the interstadial, dense boreal pine-birch forests accompanied by a minor admixture of alder and spruce were predominant. Cold stadials were dominated by open vegetation with tundra and steppe elements.The pollen sequence from Dziadowa Kłoda is the first site on the Silesian Lowland that shows the first fully developed Early Vistulian warm oscillation that correlates with the Brörup Interstadial. A distinctive feature of this site is a long, continuous pollen sequence of the Eemian passing into deposits of the Vistulian Glaciation in the same profile.
    Źródło:
    Geological Quarterly; 2007, 51, 3; 319-328
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contemporary directions of transformations in the settlement and the landscape of rural areas in the Silesian lowland
    Autorzy:
    Łach, Janusz
    Szczepańska, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/1050802.pdf
    Data publikacji:
    2020-03-31
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Silesian Lowland
    Borek Strzelińsk
    rural area
    rural landscape
    social activity
    local leaders
    Opis:
    Rural areas of the Silesian Lowland, undergoing social and economic transformations today, have had a strong impact on the formation of the region’s settlement landscapes. Political and economic changes after 1989 have affected the development of rural areas, in particular of ‘privileged’ settlements for which the proximity of towns and a trunk road are favourable factors. The result of these seemingly positive factors is the escape of young people (potential farmers) to the cities and an influx of new settlers. This affects social behaviour and activity, as well as the visual rural landscape, creating suburban zones with residential and leisure functions. The village seems to have lost its typical character but has it really? The subject of the research is, therefore, an analysis of changes in the spatial and social structure of a rural village as exemplified by Borek Strzeliński, which allows setting out its functions. The research issue is to determine the level of social activity of rural residents and their attitude towards the local cultural heritage, which influences their identity and the value of the landscape. The use of integrated methods of field work based on a free sociological survey has allowed identifying the spatial directions of village development and threats resulting from divided social activity.
    Źródło:
    Quaestiones Geographicae; 2020, 39, 2; 55-73
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sedymentologiczny i paleobotaniczny zapis zmian klimatu w plioceńskich osadach rzecznych południowo-wschodniej części Niziny Śląskiej
    Sedimentological and palaeobotanical records of climatic changes within Pliocene fluvial sediments in the southeastern Silesian Lowland
    Autorzy:
    Badura, J.
    Przybylski, B.
    Salamon, T.
    Winter, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063344.pdf
    Data publikacji:
    2006
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    sedymentologia
    biostratygrafia
    formacja Gozdnicy
    pliocen
    Nizina Śląska
    sedimentology
    biostratigraphy
    Gozdnica Formation
    Pliocene
    Silesian Lowland
    Opis:
    W południowo-wschodniej części Niziny Śląskiej w międzyrzeczu Nysy Kłodzkiej i Odry występuje zwarty kompleks neogeńskich osadów rzecznych formacji Gozdnicy. Badania osadów tej formacji prowadzono na stanowisku Tułowice na Równinie Niemodlińskiej. Analiza minerałów ciężkich wykazała, że osady dolnej części profilu, o całkowitej miąższości 18 m, najprawdopodobniej są związane z Nysą Kłodzką, natomiast górnej — z Odrą. Szczegółowym badaniom sedymentologicznym poddano odsłaniające się w wyrobisku osady górnej części profilu. Wyróżniono cztery kompleksy osadów. Na podstawie analizy litofacjalnej stwierdzono, że trzy pierwsze kompleksy powstawały głównie w systemie rzeki meandrującej. Osady kompleksu 4 reprezentują natomiast rzekę o układzie anastomozującym. Próbki z mułowo-ilastych warstw kompleksu 1 i 2 poddano analizie paleobotanicznej. Wynikająca z niej zmienność szaty roślinnej wykazała tendencję do zmian krótkookresowych oscylacji średnich temperatur i wilgotności. Na podstawie badań spektrów pyłkowych stwierdzono plioceński wiek osadów. Transformacja układu koryta, wynikająca z analizy sukcesji osadowej, mogła mieć związek z coraz większymi zmianami klimatycznymi późnego pliocenu, bezpośrednio poprzedzającymi ochłodzenie z początku plejstocenu.
    Neogene fluvial deposits of the Gozdnica Formation constitute a continuous cover in the southeastern part of the Silesian Lowland, in the Nysa Kłodzka and Odra interfluve. The 18 m thick succession of these deposits was studied in the Tułowice site on the Niemodlin Plain. Heavy mineral analysis indicates that deposits of the lower part of the succession were probably accumulated by the Nysa Kłodzka River, and those of the upper part — by the Odra River. Detailed sedimentological research was conducted in an excavation where the latter deposits are exposed. Four lithologic complexes were distinguished. It was found that three older complexes were formed mostly ha a meandering river system. The deposits of complex 4 represent alluvium of an anastomozing river system. Palaeobotanical analyses were made for silty-clayey deposits of complexes 1 and 2, and revealed plant cover variability indicating a climatic tendency for short-term oscillations of mean temperatures and humidity. Pollen spectra evidenced Pliocene age of the deposits under study. Both sedimentological and paleobotanical data indicate that the change of fluvial environment could have been associated with a progressive climatic change during the Late Pliocene, directly preceding the Early Pleistocene cooling.
    Źródło:
    Biuletyn Państwowego Instytutu Geologicznego; 2006, 421; 1--14
    0867-6143
    Pojawia się w:
    Biuletyn Państwowego Instytutu Geologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lithological indicators of loess sedimentation of SW Poland
    Autorzy:
    Krawczyk, M.
    Ryzner, K.
    Skurzyński, J.
    Jary, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/100800.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Śląski. Wydział Nauk o Ziemi
    Tematy:
    Dolny Śląsk
    gleba
    zmiana klimatu
    zlodowacenie
    Silesian Lowland
    loess-soil sequence
    grain-size indicator
    climate change
    last glaciation
    Opis:
    High-resolution grain-size investigations were carried out in two SW Polish loess sections: Biały Kościół (Niemcza-Strzelin Hills) and Zaprężyn (Trzebnica Hills). Each sequence was sampled by using the same methodology and samples were taken at 5 centimeters intervals. The particle size distribution was obtained with a Mastersizer 2000 laser, used for diffraction methods. From the obtained results the basic parameters and grain size indicators were calculated: Mz, Grain Size Index ratio, U-ratio and the percentage content of clay (< 4μm) and sand (> 63 μm). Both loess- soil sequences are composed of interfluve and slope loess facies and consist of five litho-pedostratigraphic units developed during the Late Pleistocene and Holocene: two loess units L1LL1, L1LL2 and three polygenetic fossil soils sets S0, S1 and L1SS1. The distance between these two profiles is about 60 km. Zaprężyn, as a section located more to the north, has almost no lower younger loess and higher level of weathering which could be related to proximity of this site to the Ice Sheet margin. The climate here was more extreme and harsh. What is more,the difference in development of soil L1SS1 can be observed: while in Biały Kościół pedogenesis process was slower and less disturbed than in Zaprężyn. The upper part of L1SS1 in Biały Kościół was deformed by gelifluction, frost heave and other periglacial processes. Mz indicator by the grain-size distribution in these sediments reflects subtle variations in the climatic system. Moreover, in Zaprężyn the content of sand fraction is higher than in Biały Kościół what can be the evidence of short episodes of strong winds during cold period of sedimentation. The aim of this paper is to compare two loess profiles by their stratigraphical and lithological similarities which are result of climate conditions and features of surrounding environment.
    Źródło:
    Contemporary Trends in Geoscience; 2017, 6, 2; 94-111
    2299-8179
    Pojawia się w:
    Contemporary Trends in Geoscience
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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