Table 1— A summary of site characteristics 



Site 

 number and 

 acronym 



Slope Habitat Dominant 



Location Aspect percent series^ tree 



Age Treatment^ 



1(WH-M)3 



2(SAF-M) 



3(DF-I\/1) 



4(WH-I) 



5(WWP-I) 



6(GF-I) 



7(SAF-WY) 



8(PP-W) 



9(MIX-i) 



lO(LPP-i) 



11(WL-y) 



12(DF-i) 



13(PP-i) 



14(LPP-y) 



Western 



Montana 



Western 



Montana 



Western 



Montana 



Northern 



Idaho 



Northern 



Idaho 



Northern 



Idaho 



Northwestern 



Wyoming 



Eastern 



Washington 



Western 



Montana 



Western 



Montana 



Western 



Montana 



Western 



Montana 



Western 



Montana 



Western 



Montana 



NW 15 Western 



hemlock 

 E 55 Subalpine fir 



S 27 Douglas-fir 



E 5-15 Western 

 hemlock 



NW 0-10 Western 

 hemlock 



W 30-40 Grand fir 



N 15-25 Subalpine fir 



W 15-35 Ponderosa pine 



E 40 Subalpine fir 



W 5 Douglas-fir 



N 10-20 Subalpine fir 



W 5-15 Douglas-fir 



SW 50-55 Douglas-fir 



W 5 Subalpine fir 



Western 

 hemlock 

 Subalpine fir 



Douglas-fir 



Western 

 hemlock 



Western 

 white pine 

 Western 

 hemlock 

 Lodgepole pine 



Ponderosa pine 



Douglas-fir 



Lodgepole pine 



Western 

 larch 



Douglas-fir 

 Ponderosa pine 

 Lodgepole pine 



Years 



250 Undisturbed 



250 Undisturbed 



250 Undisturbed 



250 Undisturbed 



250 Undisturbed 



250 Undisturbed 



165 Undisturbed 



200 Undisturbed 



80 WF 



50 WF 



15-25 CC-BB 



60-120 l-SC 



80-100 PC-UB 



15 WF 



1 Habitat series (Pfister and others 1977). 



^Undisturbed = no history of human disturbance, WF = 

 selective cut, PC-UB = partial cut with underburn. 



^Beginning letters denote primary ectomycorrhizal host, 

 intermediate age, y = young age. 



= wildfire, CC-BB = clearcut-broadcast burn, l-SC = intermittent 

 last letters indicate State (caps) and age (lower case); i = 



Site 2 (SAF-WY) is a subalpine fir climax in northwest- 

 ern Montana on the Coram Experimental Forest. It has an 

 east aspect, a slope averaging 55 percent, and an elevation 

 of approximately 1,900 m. The primary ectomycorrhizal 

 hosts are 250-year-old Douglas-fir {Pseudotsuga menziesii 

 [Mirb.] Franco), western larch, subalpine fir {Abies lasio- 

 carpa [Hook.] Nutt.), and Engelmann spruce {Picea engel- 

 mannii Parry). Lodgepole pine {Pinus contorta Dougl.), 

 western hemlock, and western white pine (Pinus monticola 

 Dougl.) occur occasionally. 



Site 3 (DF-M) is a Douglas-fir climax in northwestern 

 Montana on the Coram Experimental Forest. It has a 

 south aspect, a slope averaging 27 percent, and an eleva- 

 tion of approximately 1,150 m. The primary ectomycor- 

 rhizal host is 250-year-old Douglas-fir. Western larch occur 

 infrequently on this site. 



Site 4 (WH-I) is a western hemlock climax in northern 

 Idaho near the Priest River Experimental Forest. It has 

 an east aspect, a slope averaging 10 percent, and an eleva- 



tion of approximately 1,500 m. The primary ectomycor- 

 rhizal host is 250-year-old western hemlock. Western 

 redcedar occur frequently on this site. 



Site 5 (WWP-I) is a western hemlock climax in northern 

 Idaho on the Deception Creek Experimental Forest. It has 

 a northwest aspect, a slope averaging 5 percent, and an 

 elevation of approximately 1,000 m. The primary ecto- 

 mycorrhizal host is 250-year-old western white pine. 

 Western hemlock, Douglas-fir, and grand fir (Abies 

 grandis [Dougl.] Lindl.) occur occasionally. 



Site 6 (GF-I) is a grand fir climax in northern Idaho on 

 the Priest River Experimental Forest. It has a west 

 aspect, a slope averaging 35 percent, and an elevation of 

 approximately 1,200 m. The primary ectomycorrhizal hosts 

 are 250-year-old western hemlock and Douglas-fir. West- 

 ern white pine, grand fir, and western redcedar occur 

 occasionally. 



' Site 7 (SAF-W) is a subalpine fir climax in northwestern 

 Wyoming near Union Pass. It has a north aspect, a slope 



2 



