Indicatory Properties of Soil Solutions in the Characteristics of Forest Site Quality
G. Porębska*, J. Sienkiewicz, A. Ostrowska
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Institute of Environmental Protection, Krucza St. 5/11, 00-548 Warsaw, Poland
Pol. J. Environ. Stud. 2004;13(5):557–563
e have compared the mean contents of Al, combined Ca + Mg as well as of the total content of elements (Ca, Mg, K, Na, Al, Fe, Mn, NH4, Cl, SO4 and NO3) in solutions obtained for the Ofh, AE and Bv soil horizons. Soils were sampled in dry coniferous (Bs), fresh coniferous (Bsw) and mixed deciduousconiferous (BMsw) forest sites. Higher values of combined Ca and Mg content and of total element content were found in the soil solution of all horizons in BMsw sites than in those in Bs and Bsw sites. The amount of Al migrating to aqueous solution is lower in Ofh horizons of BMsw sites than in Bs and Bsw sites. The soil sorption complex of BMsw sites, likewise respective soil solutions, is more abundant in combined bivalent basic cations than that of Bs and Bsw sites. Exchangeable Al content in the Ofh horizon is lowest in BMsw site, and highest in Bsw site. No direct effect was found on the forest floor vegetation on the concentration of soil solutions (expressed as element sum) or on the ionic composition of these solutions taking into account the elements analyzed.