RICHARDS PEAK UNIT PRESCRIPTION 



Sale Name: Richards Peak Unit Number: 8 



Location- Section 16 TWP: 24N RGE: 27W Subd: 



Elevation: 4600 Slope: 55% (20%-80%) Aspect: NE, N, E 



Habitat type: ABGR/LIBO, ABGR/XETE, THPL/CLUN Acres: 31 



Soils: Andic Dystric Eutrochrepts. Andic Ustochrepts, Andic Dystrochrepts. Soils are deep and 

 well drained. Surface layers are formed in volcanic ash influenced loess. Subsoils are rocky, 

 containing 55 to 95 percent rock fragments. Soil erosion hazard and sediment delivery efficiency 

 are moderate. 



Description of existing stand: A mostly even-aged stand. The overstory averages 190 trees per 

 acre consisting of Douglas-fir (48%), western larch (23%), alpine fir (12%), grand fir (10%), 

 lodgepole pine (5%), and western red cedar (2%). There are 3-5 large diameter western larch and 

 Douglas-fir scattered per acre. Basal area averages 140 square feet an acre. The stand is 

 approximately 135 years of age, with the scattered overstory larch and Douglas-fir being around 

 175 to 190 years of age. The majority of the overstory is between 60 and 140 years of age. The 

 overstory averages U" in diameter and 72 feet tall. The understory is clumpy in distribution 

 with approximately 150 trees per acre, consisting mostly of Douglas-fir and grand fir. Insect and 

 disease problems can be found throughout the unit. Dwarf mistletoe is severely affecting the 

 western larch. Scattered pockets of the dead and dying Douglas-fir, killed by the Douglas-fu- 

 beetle, are also present. 



Treatment Objectives: 



1 . Remove intermediate, suppressed, diseased, and less vigorous trees to increase tree 

 growth, health and vigor in overstory. 



2. Protect soil productivity by minimizing soil displacement, compaction and erosion, and 

 site producfivity by retaining 10-15 tons of down woody debris and fine fuels per acre after 

 treatment. 



3. Remove shade tolerant species that have encroached upon historic western larch cover 

 types. 



4. Retain approximately 15-30 trees per acre to provide a seed source for natural 

 regeneration. 



5. Promote regeneration of western larch and white pine. 



6. Prescribe bum unit after logging to reduce current fuel loading and prepare a seed bed for 

 natural regeneration. 



