The influence of Cu and Zn on soil nematode communities was examined a long a pollution gradient with increasing distance from a metallurgical factory. Total and available heavy metal contents were used to study the effects of heav y metals on nematode abundance, trophic groups and ecological indices. The resul ts demonstrated significant correlations between the number of total nematodes, bacterivores, plant-parasites and the total and available heavy metals. Bacteriv ores and plant-parasites were the dominant trophic groups. Significant differenc es in different sampling sites were found only in the number of bacterivores(P<0 .01). The Shannon-Weaver diversity index(H’), trophic diversity index(TD), evenn ess index(J ’) and dominance index(?姿) were found to be sensitive to soil pH an d C/N ratios. Significant correlations were found between the total nematodes(TN EM), some genera(Acrobeloides, Aphelenchoides, Cephalobus, Ditylenchus, Mesorhab ditis, Tetylenchus and Tylenchus) and distance from the factory.
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