THE ART OF THE SECOND GROWTH 



More frequently, the shelterwood strip type is bastardized with 

 the shelterwood group type (e. g., in the famous Bavarian forests 

 near Kehlheim). 



Regeneration of a cove, slope, tract, etc., under the pure strip 

 type, is exceedingly slow, unless there are at hand a number of 

 " series of strips," all triplets, consisting of a preparatory, a seeding 

 and a final strip. 



The first strips are usually made, as in the cleared strip type, 

 in well- sheltered ravines or gullies; or at the windward edge of 

 lakes, fields, young growth; or at the windward edge of storm-firm 

 trees (Oaks), where there is a mixture of storm-firm species with 

 species endangered by storm. 



The form of the strips need not be exactly rectangular. In 

 the mountains, the strips usually run up and down the slopes — not 

 horizontal — so as to facilitate the transportation of timber and 

 wood removed from the strip. 



B. Actual application: This type is frequently seen in the 

 coniferous woods of the European moderately cold zone; also in 

 Beech woods and Oak woods. 



Like the uniform tj-pe, the strip type is not exactly natural. 



In the Spruce woods of the Appalachians, where the wind lays 

 low one row of trees after the other, in the course of many years, 

 the woods look frequently as if they were regenerated by the shelter- 

 wood strip type. 



C. Advantages: The advantages of the shelterwood strip type 

 are identical with those of the shelterwood compartment type — 

 excepting advantage III. It is especially adapted to small pieces 

 of property, which could not yield steady returns under the uniform 

 type. Greater security from storm is characteristic for the strip 

 type. Liberty of action, since there are many points at which the 

 annual cut may be made, is a further advantage. 



D. Disadvantages: 



I. Uifficult}' of obtaining a desired mixture of species in the 

 young growth. 



II. Trees at the extreme windward edge of a cutting series 

 obtain an extravagantly high age, whilst regeneration proceeds 

 slowly and gradually against them. 



III. Tardiness of a complete regeneration of a whole compart- 

 ment, slope or cove, where there are but a few points of first 

 attack. 



IV. Operations are more scattering than in the shelterwood 

 compartment type. 



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