. The practice of silviculture : with particular reference to its application in the United States . Forests and forestry. MODIFICATIONS OF THE METHOD 53 ber of reserve seed trees may vary depending upon whether emphasis is placed on the development of the stand or on the timber to be secured eventually from the seed trees. If the Gropp Seed-tree Method Scattered Seed-tree Method. Fig. 15. A comparison of the group and scattered seed tree methods where the same number of trees (and volume) are left in the stand under each of the methods. It is evident that dissemination of seed cannot be so un
. The practice of silviculture : with particular reference to its application in the United States . Forests and forestry. MODIFICATIONS OF THE METHOD 53 ber of reserve seed trees may vary depending upon whether emphasis is placed on the development of the stand or on the timber to be secured eventually from the seed trees. If the Gropp Seed-tree Method Scattered Seed-tree Method. Fig. 15. A comparison of the group and scattered seed tree methods where the same number of trees (and volume) are left in the stand under each of the methods. It is evident that dissemination of seed cannot be so uniform where the seed trees are arranged in groups as when distributed singly. The shaded areas indicate the portions of the tract occupied by the crowns of the seed trees. new stand is to develop properly the reserve seed trees must be relatively few. If production of large timber is of primary. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hawley, Ralph C. (Ralph Chipman), 1880-. New York : John Wiley & Sons, Inc.
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforestsandforestry
