Podzolised acid brown soil in forest ecosystems in Serbia
2010
Kosanin, O., University of Belgrade, Belgrade (Serbia). Faculty of Forestry | Knezevic, M., University of Belgrade, Belgrade (Serbia). Faculty of Forestry
The systematized data on the existence, properties, genesis, and distribution of podzolised acid brown soil in Serbia are very few. In the Soil Classification (Skoric et al., 1985) this soil is defined as the subtype of acid brown soil. The genesis, as well as the formation of the profile morphology, is performed under the effect of the corresponding constellation of site factors. Acid siliceous rocks, very much dissected relief, steep slopes, scanty vegetation and often the sunny exposures, water and wind erosion, specific microclimate, are the main agents of this soil formation. Podzolised acid brown soil in acidophilous forests of beech (suballiance: Luzulo-Fagenion moesiacae B. Jov. 1976) and in the communities of acidophilous forests of sessile oak occurs in fragments over small areas throughout Serbia. The main characteristics of this soil, i.e. small depth, very acid or extremely acid soil pH, transition of sesquioxides, specific group-fraction composition of humus, are the properties that approach to brunipodzols and podzols. In harmony with the modern approach to forestry development, the degraded and devastated areas of the coeno-ecological group of acidophilous beech forests (Luzulo-Fagenion moesiacae B. Jov. 1976) and acidophilous forests of sessile oak and sweet chestnut (alliance: Quercion robori-petraeae) on podzolised acid brown soil, on very steep slopes, should be designated as special management units and a special management treatment should be applied. Such units occur in beech forests throughout Serbia and their total area is not at all to be disregarded.
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