Modelling greenhouse gas emission from organic soils (PEAT-GHG-model)

  • A.N. Polevoy
  • A.Yu. Mykytiuk
Keywords: organic substance, carbon, nitrogen, ammonification, nitrification, denitrification, immobilization, CO2, CH4, N2O emission

Abstract

It is considered that the organic substance of plant residues as well as one of the soil are subdivided into two active compartments and an inert compartment: resistant plant material - RPM, decomposition plant material - DPM, inert organic material - IOM are distinguished, as well as pools of microbiological biomass, BIO, and humus, HUM. All major processes of C and N turnover are included in a model; their intensity is described by a first-order equation. CO2 and CH4 emission under decomposition is studied. Main processes of nitrogen form transformation are simulated under the influence of environmental factors: ammonification, nitrification, denitrification, immobilization, nitrogen absorption by the plant rootage, carry-over of nitrates outside the soil layer of 0 - 50 cm during moisture infiltration, N2O emission under nitrification and denitrification.

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Published
2017-10-29
How to Cite
Polevoy, A., & Mykytiuk, A. (2017). Modelling greenhouse gas emission from organic soils (PEAT-GHG-model). Ukrainian Hydrometeorological Journal, (16), 141-148. https://doi.org/10.31481/uhmj.16.2015.18