Table 1.3. - Estimates of organic soil carbon in relatively undisturbed secondary forests in the United States, by region1
Region Soil carbon
(Kg/m2) (Lbs/ac)
Southeast 7.74 69,044
South Central 7.58 67,626
Northeast 16.21 144,703
Mid-Atlantic 11.56 103,173
North Central 13.09 116,791
Central 8.33 74,302
Rocky Mountain 8.02 71,571
Pacific Coast 9.77 87,191

1 Data from Post and others (1982).