TABLE ni-6 - OLD-STAND REPLACEMENT SCHEDULE (based on the Weibtill function) 



percentages of stands needed in the 110-year 

 and younger age classes and the percentages 

 necessary for the age classes between 110 and 

 150 years. Age classes cover 10 years (e.g. the 

 110 class is from 110 to 119 years). 



OLD-GROWTH 

 ATTRIBUTES 



In this section the current conditions of old- 

 growth stands in the Beaver Lake Project Area 

 will be displayed. Four attributes that often 



characterize stands in the latter stages of 

 development will be examined: large live 

 trees, snags, coarse down woody material, and 

 decadence among live trees. 



LARGE LIVE TREES 



Table 111-7 summarizes data on large trees in 

 old stands in the project area and indicates 

 that there are few acres (2% of area) that have 

 a heavy stocking of large trees (more than 21" 

 dbh). 



TABLE 111-7 - PERCENT OF BEAVER LAKE PROJECT AREA OCCUPIED BY LARGE LIVE 

 TREES IN OLD-GROWTH STANDS 



hz 



COARSE DOWN WOODY 

 MATERIAL 



Approximately 44% of old growth in the 

 Beaver Lake Project area have no large down 

 woody material over 15" dbh; only 5% were 

 recorded as having up to 3 pieces per acre. 



{m-8 



Stillwater State Forest • Beaver Lake Timber Sale Project 



