Abstract
Methodological aspects of studying the organic carbon budget of drained peat bogs used in agriculture are discussed. Difficulties in the assessment of carbon budget on the basis of measured carbon inflows and outflows are shown. The “soil pool” model of the carbon budget is suggested. It is based on the results of long-term experimental studies of a drained peatland in Ukrainian Polesie. An algorithm for calculating the carbon budget in the aerated part of the peatland—the peat soil proper—is developed with due account for a gradual involvement of the deep peat layers into the zone of soil processes. Data on the loss of dry peat mass and organic carbon per in the course of peat mineralization and surface subsidence are given with due account for the nature of the peatland and the duration of its agricultural use.
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