Wydanie 302(25) 2013

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https://oa.zut.edu.pl/handle/20.500.12539/740

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Przeglądaj Wydanie 302(25) 2013 wg Autor "Greinert, Andrzej"

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    PozycjaOpen Access
    Efekty glebotwórcze rekultywacji leśnej terenów pogórniczych w okolicy Łęknicy
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2013) Greinert, Andrzej; Drab, Michał; Zakład Ochrony i Rekultywacji Gruntów, Instytut Inżynierii Środowiska, Uniwersytet Zielonogórski; Zakład Ochrony i Rekultywacji Gruntów, Instytut Inżynierii Środowiska, Uniwersytet Zielonogórski
    Forest reclamation of the soil-less land, connected with opencast lignite mining brings effects exemplified many years after activities carried out during the technical and biological phases. The paper describes the post-mining areas characteristics located near Łęknica in western Poland, covered with Miocene sands, reclaimed in the forest direction, 20 years after the reclamation works. Within its framework, after leveling of the pit heaps plateau and the excavation bottom, slopes surface shaping, neutralization of the ground and start fertilizing, the additional fertilizing differentiating experimental plots of two objects has been done. After the 20 years of soil formation in profiles the following horizons have been observed (of thickness): O (2–3 cm), A (< 1 cm) and Cg (5–10 cm) covering the morphologically and chemically modified C1 horizon (10–30 cm), and the unchanged C2 horizon. There have been noted a tendency to re-acidification of the neutralized soil (to pHKCl 3.5–5.0), and differentiation of the soil surface layers chemistry, to the greatest extent related to the litter level forming. The direction of ground development indicates the possibility of appearance in the coming years a symptoms of the podzolisation process.
  • Miniatura
    PozycjaOpen Access
    Zawartość miedzi i cynku w rekultywowanych gruntach pokopalnianych rejonu Łęknicy
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2013) Greinert, Andrzej; Drab, Michał; Zakład Ochrony i Rekultywacji Gruntów, Instytut Inżynierii Środowiska, Uniwersytet Zielonogórski; Zakład Ochrony i Rekultywacji Gruntów, Instytut Inżynierii Środowiska, Uniwersytet Zielonogórski
    The paper presents the variability of the copper and zinc content in post-mining soils in subtotal and extracted in 0.1 M HCl forms obtained after 24 years from the start of field experiment. Described experiment was founded in outside dumps of the former lignite mine "Friendship of Nations", near Łęknica. Two test objects of different ages of the Scots pine at the start (2 and 6 years old) have been founded, within the plots constructed with differentiated mineral fertilization. During the technical reclamation trace elements have been introduced to grounds with the waste lime from Zinc Smelter in Miasteczko Śląskie. After 24 years there has been a low content of trace elements in grounds reported – subtotal form: 2–209 (av. 35) mg Zn · kg–1, 0.2–58.7 (av. 5.0) mg Cu · kg–1, form determined in 0.1M HCl: 0.1–106.0 (av. 14.7) mg Zn · kg–1, 0.1–7,9 (av. 1.0) mg Cu · kg–1. The content of Cu and Zn showed a dependence on the depth of sampling. Regardless of the type of fertilization, higher levels of the two determined forms of copper and zinc were found in the forest litter. With the increasing depth of sampling it has been indicated very clearly decrease of the both forms of Cu and Zn content. Participation of form marked in 0.1 M HCl in a subtotal form was varied (Zn: 1.1–91.7%, Cu: 1.1–78.0%), but often exceeded 50%. This corresponded with a very strong acidity of post- -mining grounds on presented areas.