and isolation. The impact of these exclusions 

 on timber yields is likely to be relatively light in 

 most cases because the yield capability of the 

 small forest patches tends to be low. Also, shal- 

 low soils and/or limited precipitation tend to 

 make regeneration of new stands slow and diffi- 

 cult. In fact, severe disturbance of many such 

 stands will cause them to revert to some non- 

 forest cover type. 



LAND USE CONFLICTS 



When considering the effects of land use 

 plans on timber availability, two points should 

 be kept in mind: 



First, land use situations vary greatly from 

 National Forest to National Forest and also 

 within the individual Forests. The situation in 

 one travel influence zone, for example, may 

 permit extensive timber cutting and in another 

 little or no cutting. 



Second, land use requirements are always 

 changing and never will be static. There have 

 been many changes in the demands upon these 

 Forests since the previous timber inventory (fig. 

 8). Consequently, the differences shown in 

 table 2 reflect both changes in forest land use 

 and the results of a more critical look at forest 

 land use. 



The area excluded from the timber growing 

 base for land use reasons includes only those 

 areas on which no logging is planned beyond 

 the salvaging of dead, dying, and hazardous 

 trees. On other areas in the timber growing 



Figure 8. — Reductions in the timber base be- 

 cause of land use conflicts. 



base,"* timber utilization will be less than com- 

 plete due to priority of other values such as 

 recreation, esthetics, etc. 



^In the past there has been some confusion about 

 how to define commerical forest land ( the timber grow- 

 ing base). Actually, it is not related perse to cutting. In 

 other words, timber has been and will be logged from 

 noncommercial areas. Commercial forest is land that is 

 being or will be used in the growing of timber crops for 

 industrial use where management inputs are made for 

 this purpose. 



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