Microbial Population and Some Soil Enzyme Activities in Iron and Chromite Mine Spoil

Monalisa Rath, C. S.K. Mishra, R. C. Mohanty

Abstract


Open cast mining of iron and chromite ore cause extensive damage to the soil subsystem in mining areas in the state of Orissa, India. Large-scale mining produces huge quantity of mine spoil which is dumped near the quarries. This paper reports significantly lower number (p<0.01) of bacterial and fungal colonies in iron and chromite mine spoil in comparison to un-mined soil in rainy, winter and summer seasons. .Activities of important soil enzymes such as invertase, amylase and cellulase in mine spoil of both the mines were significantly lower (p<0.01) than those in un-mined soil. Soil enzyme activities indicated significant positive correlation with the number of bacterial and fungal colonies in both mined and un-mined soil during all the seasons of study. Bacterial count, fungal count and enzyme activities indicated significant positive correlation with percent organic carbon irrespective of soil types.

 


Keywords


Mine Spoil; Iron; Chromite; Bacteria; Fungi; Soil Enzyme

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