Long Description of Figure 7:

Graph (all values are approximate) -- COLUMN 1: ABGR (grand fir/Abies grandis)/PSME (Douglas-fir/Pseudotsuga menziesii var glauca) Andisol (location: Oregon; Source: Tolo), soil moisture regime - Udic, soil temperature regime - Frigid, Total solum or 3 ft. depth - 1,200-3,500 lb/acre nitrogen, A horizon - 0-1,199 lb/acre nitrogen; COLUMN 2: MC (mixed conifer)/PIMO (western white pine/Pinus monticola)/THPL (western red cedar/Thuja plicata) Alfisol (location: Idaho; Source: Kauder), soil moisture regime - Udic, soil temperature regime - Frigid, Total solum or 3 ft. depth - 2,200-8,900 lb/acre nitrogen, A horizon - 0-2,199 lb/acre nitrogen; COLUMN 3: MC (mixed conifer)/PIMO (western white pine/Pinus monticola)/THPL (western red cedar/Thuja plicata) Andisol (location: Boulder Creek, Oregon; Source: Kauder), soil moisture regime - Udic, soil temperature regime - Frigid, Total solum or 3 ft. depth - 250-2,600 lb/acre nitrogen, A horizon - 0-249 lb/acre nitrogen; COLUMN 4: PIEN (engelmann spruce/Picea engelmannii)/ABLA (subalpine fir/Abies lasiocarpa) Andisol (location: Oregon; Source: Helter), soil moisture regime - Udic, soil temperature regime - Cryic, Total solum or 3 ft. depth - 2,000-6,700 lb/acre nitrogen, A horizon - 0-1,999 lb/acre nitrogen; COLUMN 5: PIEN (engelmann spruce/Picea engelmannii)/ABLA (subalpine fir/Abies lasiocarpa) Inceptisol (location: New Mexico; Source: Kauder), soil moisture regime - Udic, soil temperature regime - Cryic, Total solum or 3 ft. depth - 3,100-4,900 lb/acre nitrogen, A horizon - 0-3,099 lb/acre nitrogen.