Fig. 7
From: A carbon balance model for the great dismal swamp ecosystem
Live tree carbon biomass (by age) is shown for 100 years, where the modeled average from Fig. 6 is compared to the live tree carbon biomass by age class for the FIA plots in the Great Dismal Swamp region. The data points from the FIA were generated using COLE, a tool available from the USDA Forest Service. Both growth curves reach equilibrium at approx. 105 t C/ha, but the modeled curve lacks the signature “S” shape. The “S” shape reflects the rapid growth rate of young forests indicating a higher NPP in early growth stages. The modeled curve uses a constant NPP value. FIA Forest Inventory Analysis COLE Carbon Online Estimator