Siedliskowo-florystyczna analiza środkowoeuropejskiego acydofilnego lasu dębowego (Calamagrostio arundinaceae-Quercetum petraeae [Hartm. 1934], Scam. et Pass 1959)
AbstractThe work contains a detailed analysis of site conditions that are favourable for the formation of the Central European acidophilous sessile oak forest association (Calamagrostio amndinaceae-Quercetwn petraeae). The research was carried out on 55 study plots in areas situated within the range of occurrence of the acidophilous sessile oak forest in Poland. The investigations of soils included determination of their physical, chemical and biochemical properties. An assessment of site conditions covered also such factors as geographical location and regional climate, It was found that the forest site types occupied by the C. anindinaceae-Q. petraeae association vary in a rather wide range and encompass fresh mixed coniferous forest, fresh mixed broadleaved forest and poorer varieties of broadleaved forest. The diversity of site conditions is due to the differences in soil trophy between the areas inhabited by the association studied. The poorest soils are Podzols and Albic Arenosols developed from glaciofluvial and morainic sands. Optimal conditions for the C. arundinaceae¬-Q. petraeae association are created by Haplic Arenosols, Cambit Arenosols, Athic Cambisols and Ilyperdystric Cambisols developed from sandy-clay outwash and boulder materials. As shown by the research, this association most often occurs on moderately fresh soils and soils not subjected to long-lasting influence of groundwater. The soil formations exhibit strong acidification and leaching of surface horizons, which is why plant species typical of coniferous forest prevail in the forest floor vegetation. The differences in the nutrient content of soils under the C. arundiruzceae-Q. peiraeae association are due to the properties of deep horizons not affecting the composition of the vegetation of forest floor. The quality of oak stands was found to be related to climate conditions, especially to the mean and minimum values of annual precipitation totals and the length of the vegetation season. Soil properties had a weaker effect. Among the latter, the most important parameters are the stock of exchangeable sodium and the ratio of the stock of exchangeable calcium to the total acidity of soil (Ca : Y). Fresh mesotrophic soils with a stock of fraction < 0.02 mm in the range 100-300 kg • 1,5 M-3 provide favourable conditions for the growth of sessile oak in the C. arundinaceae-Q. petraeae association. Soils with a lower stock of this fraction create good conditions for mixed pine-oak forests, while those with a higher stock are appropriate for hornbeam forest associations.
|Other language title versions||Site and vegetation analysis of Central European acidophilous sessile oak forest (Calamagrostio arundinaceae-Ouercetum petraeae [Hartm. 1934], Scam. et Pass. 1956)|
|Publisher||Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie, MNiSW |
|Publishing place (Publisher address)||Kraków|
|Book series /Journal (in case of Journal special issue)||Zeszyty Naukowe Uniwersytetu Rolniczego im. Hugona Kołłątaja w Krakowie. Rozprawy, ISSN 1899-3486, (0 pkt)|
|Publication size in sheets||11|
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