A well stirred-up seedbed and a nearby seed source are required for the 
natural regeneration of Douglas-fir. When these clear-cut patches are covered 
4. Despite the esthetic advantage of getting the new crop under 
the old, some types of forests can be regenerated only in the open 
and preferably on a stirred-up seedbed. This is similar to sowing 
grain on a well-tilled field, and it greatly increases the chances that 
the area will reproduce promptly to an attractive new forest. Failure 
to create a stirred-up site may perpetuate a brushfield and indefi- 
nitely delay starting a new forest. There is a beauty in the rebirth 
of an even-aged forest. The openings are only temporary. Signs 
can be placed to let the public know that a new forest is on its way. 
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with young trees, other patches will be cut. In a few decades the whole 
landscape will have a new crop of vigorous young timber. 
5. Foresters should use the principle of variety by striving to re- 
generate a mixture of trees in areas of greatest public viewing 
interest, as along roads. Mixed forests have greater seasonal varia- 
tions, greater wildlife habitat value, and greater safety from hazards 
such as fire, climate, and pests, as well as greater attractiveness. 
6. Removal of slash—tops and limbs of harvested trees—along 
travel routes and from public-use areas is usually good fire insurance 
and always an aid to natural beauty. 
