Organic matter stability in soddy podzolic sandy and peaty soils depending on the way of their use | Стабильность органического вещества дерново-подзолистых супесчаных и торфяных почв в зависимости от их использования
2011
Tsybulko, N.N. | Semenov, V.M., Department for Liquidation of Consequences of Chernobyl Accident at the Ministry for Emergency Situations (Belarus) | Tulina, A.S., Institute of Physicochemical and Biological Problems of Soil Science, Pushchino (Russian Federation) | Shapsheeva, T.P. | Zhukova, I.I., Institute of Radiology, Mogilev (Belarus)
Results of the realized in the conditions of the Republic of Belarus study of the organic matter structure and stability in soddy podzolic sandy and peaty soils are presented. The active organic matter content of soddy podzolic soils is 2.8-5.4 times lower than that of peaty soils. The agricultural use of lands results in the reduction of the active pool of the soil organic matter. In soddy podzolic sandy soils the easily mineralized fractions of the organic matter increase in amount, but the hardly mineralized fractions decrease. In peaty soils the amount of both easily and hardly mineralized fractions decreases. An inverse relationship is observed between the carbon sequestration capacity and the soil mineralization capability. The minimum carbon sequestration capacity is characteristic of soddy podzolic sandy soils of native normally moist meadowlands, the maximum value – of peaty soils of lands cropped by perennial grasses. The carbon sequestration capacity of tilled soils is 1.1–1.8 times its value of the similar soils of native meadowlands
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