Impact of alkaline dust pollution on soil microbial Biomass carbon
Omer Kara, Ilyas Bolat
article (Uluslararası, Hakemli) | Yazar(lar): Omer Kara, Ilyas Bolat | Yıl: 2007 | Dergi/Kurum: TURKISH JOURNAL OF AGRICULTURE AND FORESTRY | İndeks: WOS.SCI | Anahtar Kelimeler: microbial biomass C, cement dust pollution, C-mic center dot C-org ratio, soil health — Özet: The effect of alkaline dust pollution emitted f
The effect of alkaline dust pollution emitted from Bartin cement plant on the soil microbial biomass carbon was investigated using the chloroform fumigation-extraction (CFE) method. Microbial biomass C (C-mic) values ranged from 157.82 to 1201.51 mu g g(-1) soils in the polluted area and from 726.70 to 1529.14 mu g g(-1) soils in the control area. Soils polluted with alkaline cement dust resulted in significant reductions in C-mic 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). C-mic:C-org ratio proved to be a reliable soil microbial parameter for describing the change in the man-made ecosystem. Mean C-mic:C-org 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 C-mic:C-org ratio in cement dust-polluted soils also indicated that this parameter can serve as a good indicator of soil health.