This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 Excerpt: ...in the same stand to fit variation in conditions encountered is often the wisest course. Thinnings can well be increased in severity with advancing age in order to satisfy the demands of the trees for more light and room. Indeed, due to the larger crown spread of the individual trees in an older stand, bigger gaps must ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 Excerpt: ...in the same stand to fit variation in conditions encountered is often the wisest course. Thinnings can well be increased in severity with advancing age in order to satisfy the demands of the trees for more light and room. Indeed, due to the larger crown spread of the individual trees in an older stand, bigger gaps must be left if any thinning is made. In applying thinnings the danger from windthrow and breakage must be kept in mind. If the work is started early any stand can be made comparatively resistant to storms by systematic thinning. The development must be gradual. If thinned too heavily at first the entire remaining stand may be lost. Dense stands of tall, small crowned trees which have gone for years unthinned reach a stage when it is dangerous to make even a light thinning. Timber of this character ordinarily must be left untouched until ready for regeneration. Danger of windfall after thinnings is greatest on wet ground, thin soil and exposed sites and with shallow rooted species. Plantations closely spaced (6x6 feet or less) will require thinning soon after they close. So many individuals in a plantation are all of about the same size and vigor when they meet that an even but severe struggle takes place, which is apt to leave all the contestants alive and seriously weakened. If thinnings are impracticable, this should be allowed for by using wide spacing in the plantation. REFERENCES 1. Kunze, Max. Untersuchungen iiber den Einfluss verschiedener Durchforstungsgrade auf den Wachstumsgang eines Kiefernbestandes. Mitteilungen aus der Konig. Sachsischen forstlichen Versuchsanstalt zu Tharandt. Band 1, Heft 2, 1913. 2. Caccia, A. M. Forest Research at Cambridge. Quarterly Journal of Forestry, Vol. VIII, 1914, p. 130. 3. Biennial Report of the Forestr...
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Add this copy of The Practice of Silviculture, With Particular Reference to cart. $21.42, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
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Add this copy of The Practice of Silviculture With Particular Reference to cart. $34.73, new condition, Sold by Media Smart rated 3.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published 2016 by Wentworth Press.
Add this copy of The Practice of Silviculture With Particular Reference to cart. $43.42, new condition, Sold by Media Smart rated 3.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published 2016 by Wentworth Press.
