AMERICAN SYLVICULTURE 



The regeneration obtained is, naturally, very heterogeneous and 

 contains a great deal of missliapen advance growth as well as of 

 weed growth. 



Weeds trees left on the ground might be girdled if belonging 

 to an undesirable species (Beech in Galizia). 



A few seed trees might be left scatteringly (if wind firm) in 

 groups or in strips, preferably close to the roads, also doty speci- 

 mens without any value. 



An usher growth of Cottonwoods, Birches, Sumac, Locust, 

 Sassafras, etc., frequently precedes the second growth desired on the 

 ground. 



Fires preceding the seeding, and immediately in the wake of 

 logging, greatly enhance the success of Yellow Pines, Doviglas Fir, 

 etc. Yellow Poplar, on the other hand, is checked by the heavy 

 growth of weeds following tires. Stock pasture is of advantage, 

 where it presses the seeds into the soil, and where it checks the 

 weeds. 



The clearing should comprise, if possible, only one side of a 

 cove at a time or the lower part of a slope or the bottom of a 

 cove, so as to allow of greater ease in reseeding. 



B. Actual application: This type has been adopted, — not 

 confessedly but actually — by the Austrian Government in dealing 

 with the primeval woods of Galizia. consisting of Beech, Fir and 

 Spruce. 



The United States Forest Service has tried to adopt it in 

 modified form under the name " single tree method " for the Minne- 

 sota National Forest and in the majority of its business-working 

 plans (Sawyer and Austin; Weyerhiiuser). 



Thousands of acres of abandoned farm land all over the Eastern 

 States have been reforested in this manner, usually in pines, fre- 

 quently against the owner's will. 



C. Advantages: The cleared compartment type shows the 

 following advantages : 



I. Greatest ease in lumbering. 



II. Concentrated operations and concentrated supervisio.i. 



III. Few permanent main links of transportation required. 



IV. Smallest deviation from the old-time manner of destruc- 

 tive lumbering. 



V. Possibility- of temporary use of the clearing for the pro- 

 duction of field crops benefited by the fertilizing eff'ect of the 

 humus. 



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