Long Description of Figure 9:

Graph (all values are approximate) -- COLUMN 1: P-J (juniper) Alfisol (location: New Mexico; Source: Lithic), soil moisture regime - Ustic, soil temperature regime - Mesic, Total solum or 3 ft. depth - 1,000-1,450 lb/acre nitrogen, A horizon - 0-999 lb/acre nitrogen; COLUMN 2: SW PIPO (southwest ponderosa pine forest) Alfisol (location: Arizona), soil moisture regime - Udic, soil temperature regime - Frigid, Total solum or 3 ft. depth - 875-2,100 lb/acre nitrogen, A horizon - 0-874 lb/acre nitrogen; COLUMN 3: PIPO (ponderosa pine/Pinus ponderosa)/PSME (Douglas-fir/Pseudotsuga menziesii) Alfisol (location: New Mexico), soil moisture regime - Udic, soil temperature regime - Frigid, Total solum or 3 ft. depth - 1,575-3,850 lb/acre nitrogen, A horizon - 0-1,574 lb/acre nitrogen.