Number and activity of microorganisms in bauxite mine soil
2006
Golic, Z.(Faculty of Agriculture, Belgrade - Zemun (Serbia)) | Raicevic, V.(Faculty of Agriculture, Belgrade - Zemun (Serbia)) | Jovanovic, Lj.(University of Belgrade, Belgrade (Serbia). Center for Multidisciplinary Studies) | Antic-Mladenovic, S.(Faculty of Agriculture, Belgrade - Zemun (Serbia)) | Kikovic, D.(Faculty of Agriculture, Lesak (Serbia))
Mine exploitation often produce heavy divested soils without any vegetation and biological potential. However, the most mine soils contents heavy metals too. In this study first we were investigated the metal contents in soil, water and plants samples taken from bauxite mine in Milici (Bosnia and Herzegovina) at two locations. Results showed that total contents of Ni (50.4-99.2) and Cr (10.6-209.6 mg/kg) in the soil samples exceeded their maximum allowed for unpolluted soils. Such divested lands could be biological active only if the different microorganisms are present in a soil as a first step in recultivation. Due its, dominantly systematic group of microorganisms were determined. Results showed that bacterial populations were the highest in the rhizosphere (21.6 x 10**5 - 91 x 10**5). Lower content of bacterial populations were found in the water samples (5.3 x 10**4 - 14 x 10**4). Activity of the enzyme dehydrogenase (as soil healthy indicator) was the highest in the mud samples (33.62 microgram TPF/10 gr).
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