Impact of Alkaline Dust Pollution on Soil Microbial Biomass Carbon

The effect of alkaline dust pollution emitted from Bartın cement plant on the soil microbial biomass carbon was investigated using the chloroform fumigation-extraction (CFE) method. Microbial biomass C (Cmic) values ranged from 157.82 to 1201.51 µg g-1 soils in the polluted area and from 726.70 to 1529.14 µg g-1 soils in the control area. Soils polluted with alkaline cement dust resulted in significant reductions in Cmic levels compared to control soils. Microbial biomass C correlated negatively with CaCO3 content (r = -0.52, P < 0.05) and positively with soil organic C (r = 0.67, P < 0.01). Cmic:Corg ratio proved to be a reliable soil microbial parameter for describing the change in the man-made ecosystem. Mean Cmic:Corg ratio was 2.55 and 3.09 in the polluted soils and control soils, respectively. The decrease in this ratio was an indication of soil degradation in the polluted soils. A significant decline in the Cmic:Corg ratio in cement dust-polluted soils also indicated that this parameter can serve as a good indicator of soil health.

Anahtar Kelimeler:

Microbial biomass C, cement dust pollution, Cmic:Corg ratio, soil health

Impact of Alkaline Dust Pollution on Soil Microbial Biomass Carbon

Keywords:

Microbial biomass C, cement dust pollution, Cmic:Corg ratio, soil health,

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