Figure 18.10--Total aboveground carbon per acre in southern forests (Personal Communication. 2000. L.S. Heath, Project Leader, and J.E. Smith, Plant Physiologist, Northeastern Research Station, 11 Campus Blvd., Newtown Square, PA 19073) [estimates based on 1997 USDA Forest Service Forest Inventory and Analysis data and FORCARB results (inventory begins in 1990, older products are not counted, and future predictions are cumulative amounts)].