Long Description of Figure 5:

Graph (all values are approximate) -- COLUMN 1: NW PIPO (northwest ponderosa pine forest) Mollisol (location: Oregon; Source: Klicker), soil moisture regime - Xeric, soil temperature regime - Frigid, Total solum or 3 ft. depth - 27,000-66,000 lb/acre organic carbon, A horizon - 0-26,999 lb/acre organic carbon; COLUMN 2: ABGR (grand fir/Abies grandis)/PSME (Douglas-fir/Pseudotsuga menziesii var glauca) Andisol (location: Washington; Source: Nevine), soil moisture regime - Xeric, soil temperature regime - Frigid, Total solum or 3 ft. depth - 8,000-85,000 lb/acre organic carbon, A horizon - 0-7,999 lb/acre organic carbon; COLUMN 3: NW PIPO (northwest ponderosa pine forest) Pumiceous Andisol with bitterbrush (Purshia tridentata) understory (location: Oregon; Source: Lapine), soil moisture regime - Xeric, soil temperature regime - Cryic, Total solum or 3 ft. depth - 17,500-34,000 lb/acre organic carbon, A horizon - 0-17,499 lb/acre organic carbon; COLUMN 4: NW PIPO (northwest ponderosa pine forest) Pumiceous Andisol with snowbrush (Ceanothus velutinus) understory (location: Oregon; Source: Lapine), soil moisture regime - Xeric, soil temperature regime - Cryic, Total solum or 3 ft. depth - 29,500-44,500 lb/acre organic carbon, A horizon - 0-29,499 lb/acre organic carbon.