Application of a 2D model for describing the turbulent transfer of CO_2 in a spatially heterogeneous vegetation cover
A numerical 2D model of the turbulent transfer of CO_2 in the air between a spatially heterogeneous vegetation cover and the atmospheric surface layer was developed. The model is based on the one-and-a-half closure scheme for averaged equations of hydrodynamics and diffusion of CO_2 in the air. The model was applied to assess the possible influence of forest canopy heterogeneity on the turbulent regime and CO_2 fluxes in the atmospheric surface layer. CO_2 exchange was simulated both at the windward forest edge and around a forest clearing.