The dynamic global vegetation model MC2 was run over the conterminous United States at 30 arc seconds to simulate the impacts of nine climate futures generated by 3 GCMs (CSIRO, MIROC and CGCM3) using 3 emission scenarios (A2, A1B, B1) in the context of the LandCarbon national carbon sequestration assessment.
MC2 Vegetation was modelled in 3 stages. First, Potential Natural Vegetation dynamics are simulated assuming no human impacts (PNV model). Then fire suppression as the only land-use practice was added (PNV + FS model). Finally, a simple protocol to evaluate the relative influence of forest and crop harvest, as well as urbanization was added. (PNV + FS + LU)
The results you see here are for the PNV + FS + LU model run in conjunction with the CGCM3 GCM climate model. All 3 emission scenarios are available for review. The chart shows the change in percent area of each ecoregion for each vegetation type over the year range 2010-2050.
|Vegetation Class||Area in 2010 (km2)||Area in 2050 (km2)||Change in %|