Soil organic matter and its inert and decomposable part in arable soils in the Czech Republic
2006
Kubat, J. | Mikanova, O. | Cerhanova, D. | Novakova, J.(Research Inst. of Crop Production, Prague (Czech Republic))
Total organic carbon content and its inert and decomposable parts have been evaluated in the topsoil in the 88 sites of the Basal Soil Monitoring System in the Czech Republic. Total organic C content in the topsoil ranged from 0,72% C to 3,03% C, however, the C content was in the interval from 1% C to 2% C at the most of the sites. Inert and decomposable part of the soil organic C content was calculated. The decomposable organic C content accounted for about 30,6% of the total organic C content, on an average. Total organic C content in the topsoil have shown slight differences among the soil taxonomical units and texture classes. On the contrary, there were distinct differences in the decomposable organic C content among the soil taxonomical units and texture classes. While the total organic C content in soil did not show any relationship to the average annual temperature and precipitation, the decomposable organic C content in soil has shown a clearly distinct relationship to the average annual temperature and precipitation. The decomposable organic C content in the topsoil is thus more sensitive and reflects better the status of the organic matter in soil
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