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Modeling Soil Climate Controls On The Exchange Of Trace Gases Between The Terrestrial Biosphere And The Atmosphere, Stephen Edward Frolking
Modeling Soil Climate Controls On The Exchange Of Trace Gases Between The Terrestrial Biosphere And The Atmosphere, Stephen Edward Frolking
Doctoral Dissertations
Soil temperature and moisture profiles (soil climate) have a strong influence on the rate of trace gas exchange between the terrestrial biosphere and the atmosphere through the controls exerted on microbial processes and the physical exchange of gases.
Principal controls of biological denitrification in mineral soils are the availability of carbon and nitrogen substrates and the soil anaerobic status. A process-oriented model of decomposition and denitrification in soils (DNDC) was modified to have a more detailed portrayal of these controls. In particular, a diffusive soil gas phase was added, along with a method for determining anaerobic and aerobic fractional volume …