Open AccessModelling greenhouse gas emission from organic soils (PEAT-GHG-model)
Author(s) -
A. N. Polevoy,
A.Yu. Mykytiuk
Publication year - 2017
Publication title -
ukraïnsʹkij gìdrometeorologìčnij žurnal
Language(s) - English
Resource type - Journals
eISSN - 2616-7271
pISSN - 2311-0902
DOI - 10.31481/uhmj.16.2015.18
Subject(s) - humus , denitrification , nitrification , nitrogen cycle , peat , environmental chemistry , soil water , chemistry , nitrogen , mineralization (soil science) , environmental science , infiltration (hvac) , decomposition , soil science , ecology , materials science , organic chemistry , biology , composite material
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.