Przeglądaj wg Autor "Tomaszewicz, Tomasz"

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    Changes of Chemical Properties of Brunic Arenosols (Rusty Soils) After Eleven Years of Their Fallowing
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2015) Chudecka, Justyna; Tomaszewicz, Tomasz; Department of Soil Science, Grassland and Environmental Chemistry, West Pomeranian University of Technology, Szczecin, Poland; Department of Soil Science, Grassland and Environmental Chemistry, West Pomeranian University of Technology, Szczecin, Poland
    The aim of study was to compare of chemical properties (pH, sorption properties, content of humus, Al+3, H+, available forms of Mg, P, K) of Brunic Arenosols (typical rusty soils) from time of their agricultural use and after 11 years of their fallowing. Properties were determined by methods commonly applicable in soil science. It was found that fallowed soils contained significantly higher amount of humus than those cultivated. Fallowing period favored the acidification of soils, but this process occurred with different intensity in soil profile, depending on grain composition. Acidification process was associated with decrease of base capacity (BC), cation exchange capacity (CEC) and base saturation (BS) and increase of content of exchangeable aluminum and hydrogen forms. Fallowed soils contained a higher content of available magnesium and phosphorus than arable soils, while amount of available potassium was comparable.
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    PozycjaOpen Access
    Wpływ odłogowania na wybrane właściwości gleb piaszczystych
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2010) Tomaszewicz, Tomasz; Chudecka, Justyna; Katedra Rekultywacji i Chemii Środowiska, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Rekultywacji i Chemii Środowiska, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    The authors investigated the humus horizon (0–20 cm) of rusty soils in period of agriculture use (winter barley crop) and after 8–10 years since its use abandonment. Those soils had texture of heavy loamy sands. The fallow soils had the lower content of available potassium, the lower values of pHKCl and bases saturation (V). The contents of available phosphorus and magnesium, exchangeable aluminum and organic carbon were higher than in period of agriculture use. The authors also ascertain the improvement of soil susceptibility on physical degradation – S(f) and destruction of structure (RDC).
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    PozycjaOpen Access
    Wybrane właściwości chemiczne powierzchniowej warstwy gruntów przydrożnych w okresie wiosny i jesieni
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2010) Chudecka, Justyna; Tomaszewicz, Tomasz; Pacewicz, Krzysztof; Wróbel, Mariola; Katedra Rekultywacji i Chemii Środowiska Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Rekultywacji i Chemii Środowiska Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Agronomii Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Botaniki i Ochrony Przyrody Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    Authors analyzed a chosen chemical properties of roadside grounds localized among forest and field areas. Ice-removing chemicals using on road surfaces in winter had the dominant influence on chemizm of roadside grounds localized to the distance of 2 m from roads - to the border of drainage ditch. The values of soil salinity, pH, S and V decreased but values of Hh increased together with distance from road. The NaCl content in grounds decreased c.a. 80–90% in spring-autumn period. The roadside grounds on arable area had 2–4 -times higher level of salinity in relation to roadside grounds from forest area.
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    PozycjaOpen Access
    Zróżnicowanie morfologii oraz właściwości gleb leśnych i ornych położonych w strefie czołowomorenowej Pomorza Zachodniego
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2012) Chudecka, Justyna; Tomaszewicz, Tomasz; Zakład Rekultywacji i Chemii Środowiska, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Rekultywacji i Chemii Środowiska, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    Differently used soils from two adjacent slopes on the area with young glacial relief of Western Pomerania have been investigated. The morphology and properties of soils used in agriculture were shaped by erosion. On convex parts of slope, the lessive eroded soils have been occurred, depleted of humus and thus more susceptible to physical degradation and destruction of structure. On the concave parts of slope, the delluvial soil have been occurred, created as the result of deposition of material displaced from higher-lying parts of slope, rich in organic matter and more resistant to physical degradation and destruction of structure. All the arable soils were characterized by relatively high values of pHKCl and base saturation (BS). In forest, on the summit and convex slope the typical lessive soils have been found but in the subsidences – the delluvial humouse. Regardless of location, the forest soils were more affluent in organic matter and resistant to physical degradation and destruction of structure. The measured values of pHKCl and BS, significantly lower than in agricultural soils, have indicated the washing of profiles, occurring in conditions of good soil infiltration.