Shortleaf pine : its economic importance and forest management . A B Fig. 4.—Canopy of a crowded shortleaf pine stand 30 years old; (A) before thinning;(B) after thinning. D dominant, C codominant, I intermediate, S suppressed. canopy. The expansion of the crowns of the remaining trees willrapidly fill openings, making a second thinning necessary in aboutfive years. The selection of trees among the various crown classesfor thinning should always be preceded by the removal of unsoundand defective trees, such as those with crooked, forked, or shortknotty trunks. The presence of punk, or the frui
Shortleaf pine : its economic importance and forest management . A B Fig. 4.—Canopy of a crowded shortleaf pine stand 30 years old; (A) before thinning;(B) after thinning. D dominant, C codominant, I intermediate, S suppressed. canopy. The expansion of the crowns of the remaining trees willrapidly fill openings, making a second thinning necessary in aboutfive years. The selection of trees among the various crown classesfor thinning should always be preceded by the removal of unsoundand defective trees, such as those with crooked, forked, or shortknotty trunks. The presence of punk, or the fruiting body of afungus, is certain evidence of a diseased tree. In mixed stands the pine should be favored at the expense of thehardwoods practically always except on the least favorable situationsand extreme outer limits of its range. Artificial thinning will ac-celerate growth, however, and make the tree successful on situationsformerly considered unfavorable. In proportion to the amount ofair and soil space occupied shortleaf pine produces more timber SHORT
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1915
