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Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-375 Wrocław

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Kationowa pojemność wymienna gleb na różnym podłożu geologicznym w Górach Stołowych

Cezary Kabała

Geographical Studies, Issue 135, 2013 , pp. 7-20

https://doi.org/10.4467/20833113PG.13.020.1548

The effective cation exchange capacity in the surface layers of soils in the Stołowe Mountains reached mean values of 8–10 cmol(+) kg-1, of which up to 60% is exchangeable aluminum. The sum of base cations depends on the organic carbon content and particle-size distribution, related to the parent rock type. The largest sum is in soils derived from Cretaceous mudstones, followed by Permian sandstones and granite, whereas the smallest – from the Cretaceous sandstones. Among the soils derived from mudstones, Dystric Cambisols have the smallest base cation sum (2–2.5 cmol(+) kg-1), Luvisols have a two-fold higher and Eutric Cambisols – a three-fold higher one. The mean base saturation achieved 60% in Eutric Cambisols and 45% in Luvisols, while in Dystric Cambisols developed both from mudstones, Permian sandstones and granites it was on average 25% only. The sum of exchangeable base cations and base saturation in soils clearly differentiate the trophic status of forest habitats in the Stołowe Mountains, reflecting the interactions of geology and typological soil-forming processes.

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Nieciągłości litologiczne w profilach bielic wytworzonych ze zwietrzelin górnokredowych piaskowców w Górach Stołowych

Cezary Kabała

Geographical Studies, Issue 135, 2013 , pp. 87-100

https://doi.org/10.4467/20833113PG.13.025.1553

The data presented in this paper confirms the existence of lithological discontinuities in Podzols, usually at the boundaries between E and B horizons. This phenomenon is supported by the results of particle size analysis: changes in the content of medium sand, coarse and fine sand, fine silt and clay. The presence of lithological discontinuities zone is also indicatedd by sedimentological indexes, first of all the average diameter of grains, as well as the asymmetry of particle size distribution. Based on the above arguments it can be concluded that Podzols formed from Upper Cretaceous sandstones in the Stołowe Mountains are heterogeneous.

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Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-375 Wrocław

Cezary Kabała