Articles | Volume 18, issue 13
Biogeosciences, 18, 4211–4225, 2021
https://doi.org/10.5194/bg-18-4211-2021
Biogeosciences, 18, 4211–4225, 2021
https://doi.org/10.5194/bg-18-4211-2021

Research article 14 Jul 2021

Research article | 14 Jul 2021

An improved process-oriented hydro-biogeochemical model for simulating dynamic fluxes of methane and nitrous oxide in alpine ecosystems with seasonally frozen soils

Wei Zhang et al.

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Short summary
The hydro-biogeochemical model Catchment Nutrient Management Model – DeNitrification-DeComposition (CNMM-DNDC) is improved by incorporating a soil thermal module to simulate the soil thermal regime in the presence of freeze–thaw cycles. The modified model is validated at a seasonally frozen catchment with typical alpine ecosystems (wetland, meadow and forest). The simulated aggregate emissions of methane and nitrous oxide are highest for the wetland, which is dominated by the methane emissions.
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