%0 Journal Article
%T SOIL QUALITY ASSESSMENT BASED ON CHEMICAL, ENZYMATIC AND BACTERIOLOGICAL ANALYSIS
%A Marioara Nicoleta FILIMON
%A Sofia-Paulina BALAURE
%A Larisa CIUDIN
%A Maria-Alexandra CRACIUN
%J Annals of West University of Timi£¿oara : Series of Biology
%D 2012
%I West University of Timisoara
%X This study highlights the problem of soil pollution as the result of human activities. Soil pollutans may be either chemicals or biological in nature. microbial enzymatic activities are often proposed as indicators of environmental stress. The soil samples were submitted by chemical, microbiological and enzymatic analyses. Chemical analyses were been made for determinating the heavy metals. Heavy metals from the forest soil were represented by Cu, Zn, Mn, Ni, Pb, Cd and Cr. To evaluate the concentration in heavy metals from the filtrate, we used a acetylene-nitrous oxide flame atomic absorption spectrophotometry. Potential dehydrogenase activity, the only indicator of the possible sources of pollution, excluded the presence of either chemical or biological pollution. The number of bacteria involved in the biogeochemical cycle of nitrogen in the analyzed soil indicated a high efficiency regarding the mineralization of the organic residues of plant and animal origin.
%K heavy metals
%K enzymatic activity
%K ecophysiological bacterial groups
%U http://www.biologie.uvt.ro/annals/fullaccess/vol_XV_2_117_124.pdf