Cold Deserts Warm Deserts and Madrean Archipelago Mediterranean California Everglades Mixed Wood Shield Atlantic Shield Western Cordillera and Upper Gila Mountains Marine West Coast Forests Mixed Wood Plains Central USA Plains Southeastern USA Plains Ozark Ouachita-Appalachian Forests Mississippi Alluvial and Southeast Coastal Plain Temperate Prairies West-Central Semi-Arid Prairies South-Central Prairies and Southern Texas Plains

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)

Projected Vegetation Area Change between 2010-2050
Vegetation Class Area in 2010 (km2) Area in 2050 (km2) Change in %
Projected Total Ecosystem Carbon Storage Change between 2010-2050
Vegetation Class Carbon in 2010 (Tg C m-2) Carbon in 2050 (Tg C m-2) Change in %