How can we measure Soil Organic Carbon and Coal Carbon in soil sample of sites around coal mines.
The chemi-thermal method, based on the oxidative resistance of coal, was developed by David A. N. Ussiri and Rattan lal (2007)and validated with radiocarbon analysis using selected artificial soil–coal mixtures and mine soil samples. For more details please follow the reference "Method of determining coal carbon in the reclaimed minerals contained with coal" in Soil Science Society of America Journal 72 (1), 231-237 (2007). The below attached file will help you for determination of organic carbon.
Please get soil samples sieved with < 0.2 mm diameter; this may possibly eliminate coal carbon from soil OC. It is expected that coal C may have diameter > 0.2 mm. Just try.
Accurate estimates of SOC pools and C sequestration rates in the reclaimed minesoils is limited by the lack of a standard and cost-effective method for determination of coal C concentrations in the reclaimed minesoils. The chemi-thermal method, based on the oxidative resistance of coal, is developed and validated with radiocarbon analysis using selected artificial soil-coal mixtures and minesoil samples. Chemi-thermal treatment is effective in removing SOC with minimum effect on coal. Both radiocarbon activity and the chemi-thermal method are effective in estimating coal C concentration in reclaimed minesoils.
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