Figure 2. — Ames Creek 

 alternate shelter- 

 wood and alearout 

 strips 3 years 

 after logging. 



of 70 percent 8 years after logging. Grand fir was the third most abundant species, 

 followed by western larch and Douglas-fir. Redcedar and spruce appeared as minor 

 components on limited portions of the area. 



There was no stocking survey immediately after removal of the shelterwood residual 

 in 1951; therefore, the logging damage to reproduction already established could not be 

 estimated. Four years after logging, however, these losses had been more than replaced 

 by new germinants and by seedlings that were less than 3 years old in 1950. 



With the exception of hemlock and larch, there was a continued increase in number 

 of trees per acre throughout the 20-year period, but generally at a lesser rate after 

 the initial 8 years. While the greatest increase in number of established grand fir 

 seedlings occurred during the final 5 years of the 20-year period, this caused virtually 

 no increase in stocking. 



Clearcut strips . --Though quite adequate, regeneration on the clearcut strips has 

 not been as prompt nor as complete as on the intervening shelterwood strips (fig. 4). 

 A good seed year preceded logging on this area, and the broadcast burning of slash on 

 the clearcuts apparently destroyed or reduced the reproduction from the prelogging seed 

 supply. Four years after cutting, all-species' stocking was 15 percent as compared to 

 61 percent under shelterwood. From the eighth year on, stocking on the clearcut and 

 shelterwood areas was nearly the same. 



Seedling-abundance rankings for the species were essentially the same on the clear- 

 cut as on the shelterwood strips, but the number of seedlings and stocking percent for 

 all species except western hemlock were generally reduced. Grand fir reproduction was 

 only about one-fourth as abundant on the clearcut areas. Larch and Douglas-fir stocking 

 and seedlings per acre were also less than under the shelterwood. 



Hemlock, at the end of 20 years, constituted nearly 90 percent of the stand on the 

 clearcut area. However, the more intolerant species on the clearcut area were in a 

 somewhat better competitive position than on the shelterwood area. Overwood shade had 

 for many years favored the growth of tolerant species in the shelterwood areas. 



4 



