AMERICAN SYLVICULTURE 



It is wise to leave a few wind-fiim mother trees scattered over 

 the strip, notably immature specimens ot the most desirable species. 

 Less desii-able species on the nearby border might be girdled or 

 removed by extending the removal of that species into the bordering 

 forest. In addition, valuable hypermature trees might be with- 

 drawn from the nearby forest. 



The cleared strip type does not require a permanent system of 

 transportation of great intricacy, the strips themselves forming 

 the main lines of transportation. The narrow edge of the strip 

 merely is touched, on the valley side, by a road. According to the 

 grade of the strip, sleighs, cables, chutes, donkey engines, etc., 

 are used to deliver the logs to the road. 



At the beginning of operations, the first strip should be made 

 in sheltered localities so as to allow the forest adjoining leewards 

 to remain unharmed by storm. 



The strips proceed windwards gradually, the next being cleared 

 when regeneration in the preceding strip is fully secured. 



North of the equator, the cuttings should proceed from the 

 North to the South (Professor Wagner's discovery), since enesar 

 is most successful on the north side of the forest. In case of species 

 subject to windfall, the progress of the axe should be directed 

 from N.N.E. to S.S.W. 



The danger from insects and fungi is small. The danger from 

 fire, to begin with, is great, although not so great as in large 

 clearings to which tlie wind and sun are freely admitted. Later on 

 the even-aged character of the strip will help to check fires. 



Nothing prevents the owner from reinforcing the strip arti- 

 ficially if he thinks fit. Healthy groups of advance growth, formed 

 by desirable species in the belt at the time of logging, might be 

 carefully husbanded. Natural regeneration will set in as well at 

 the side of the belt underneath the bordering mother trees. "Re- 

 generation runs into the old woods." This is a very desirable state 

 of affairs allowing, in the next belts, regeneration to start in 

 advance of cutting. (Bastardizing the cleared strip type with the 

 advance growth strip type.) 



B. Actual application: This type of regeneration is locally 

 used in the Tyrolian and Austrian Alps, for Spruce, Larch, Pine. 

 The form of the strips need not be rectangular. It depends on 

 maturity of growth, configuration of soil, danger from storm. The 

 tj'pe seems well adapted to present American conditions, requiring, 

 of course, local modifications or bastardations, governed by species 



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