Estimation of oxidizing ability of organic matter of forest and arable soil

The unique method of multi-stage chemodestruction (11 fractions) of soil organic matter (SOM) for the estimation of its quantitative-qualitative composition of forest and arable soils was applied. Substantial differences in oxidative ability of organic matter in the 0-40 cm soil layer of old oak wood and arable land were determined. The forest soil distinguished by more resistant to oxidation and thus more stable SOM as compared with the soil of arable land. A small content of medium-oxidative part up to its complete disappearance in the 31-40 cm layer is the feature of arable soil. The differences in quantitative-qualitative composition of SOM enable the use of the method of multi-stage chemodestruction for the estimation of resistance of SOM to the destruction at different land use.