RESEARCHES REGARDING THE MAIN PHYSICAL PROPERTIES OF THE LAND FROM FORMER BAUXITE QUARRY FROM ZECE HOTARE, BIHOR AND THE SOIL FROM LIMITROPHE BEECH TREE FOREST
Journal Title: Natural Resources and Sustainable Development - Year 2011, Vol 1, Issue 1
Abstract
The researches carried out in a former bauxite quarry from Zece Hotare. The exploitation of the bauxite ended in 1998 and very large melioration works were started in 2004. In order to determine the physical properties 4 profiles were made, on the levelled area on the high area (667 m altitude), on the low area (665 m altitude) on the hillside with 10% slope (672 m altitude) on with spruce was planted without mattress and in the beech tree (Fagus silvatica) forest at 50 m distance from the edge. The soil samples for determination of the bulk density, penetration resistance and hydraulic conductivity were taken in a natural layout using the cylinders of 100 cm3. There area a very different of the land granulometric composition in the former bauxite quarry in comparison with the soil from limitrophe beech tree (Fagus silvatica) forest; the highest differences were registered in the colloidal clay content. The values of the bulk density, penetration resistance and hydraulic conductivity of the land from bauxite quarry are the worse than the values of the soil from limitrophe beech tree (Fagus silvatica) forest.
Authors and Affiliations
Radu Brejea
Keywords
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