Soil aluminium forms and acidification in selected mountainous regions of Bohemia
2001
Boruvka, L. | Kozak, J. | Drabek, O. (Ceska Zemedelska Univ., Prague-Suchdol (Czech Republic))
Forest decline in North-Bohemian mountains have been attributed to soil acidification caused by acid deposition and consequent release of toxic Al forms in soil. This study was aimed at the comparison of soil acidification indices among mountainous regions of Krusne hory (Ore mountains) and Jizerske hory in Northern Bohemia and Sumava region in Southern Bohemia. Soil pH, exchangeable acidity, organic carbon content, humus quality, labile and organically bound Al content, potential cation exchange capacity, base saturation and content of major base cations (Ca, Mg, and K) were determined in both forest and grassland soil samples from the three areas. It was shown that the acidification rate generally followed the order Jizerske hory Sumava Krusne hory. Principal cause of soil acidification was forest vegetation. Acidification and Al release were intensified by high precipitation and leaching. Differences among the areas caused by anthropogenic soil acidification were not proved.
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