Pools of organic carbon and prognosis of pool changes in perennial meadows

The aim of study was to determine the influence of organic matter of perennial meadow on Corg stocks in different soil types and to do the prognosis Corg accumulation in mineral soil for the short 5-year period. Organic carbon accumulations have been predicted in natural and under sown meadows in Calc(ar)ic Gleysol, Dystric Planosol, Dystric Albeluvisol and Haplic Podzol. Although, in all soils in humus horizon soil organic carbon content was about 15 mg g-1 of dry soil (with the exception of Dystric Planosol, in addition, organic matter is supplemented to mineral soil of the examined meadows, but within the 5-year period the accumulation of Corg will decrease up to 3-6 times. However, if to compare with other soil types, soil humus horizon even it is not properly developed and productive in Dystric Planosol, but will be accumulating even though statistically not significantly higher content of organic carbon (5.12±1.01 tC ha-1)Vytauto Didžiojo universitetasŽemės ūkio akademij