. The practice of silviculture : with particular reference to its application in the United States . Forests and forestry. 36 THE CLEARCUTTING METHOD The entire series of cuttings must be finished within a short enough period (lo to 20 years, depending on length of rotation), to make the new growth on the whole area even- aged if the method is to be classed as dearcutting. In large stands the entire area could not be cut over in a short enough time to produce evenaged timber and at the same time keep First clear Cutting. Fig. 8. A simple case of a small stand reproduced under the method of dea
. The practice of silviculture : with particular reference to its application in the United States . Forests and forestry. 36 THE CLEARCUTTING METHOD The entire series of cuttings must be finished within a short enough period (lo to 20 years, depending on length of rotation), to make the new growth on the whole area even- aged if the method is to be classed as dearcutting. In large stands the entire area could not be cut over in a short enough time to produce evenaged timber and at the same time keep First clear Cutting. Fig. 8. A simple case of a small stand reproduced under the method of dearcutting in progressive strips. the individual strip narrow enough to reproduce success- fully unless more than one cutting series is initiated. To overcome the difficulty several strips may be cut in one year, each in a separate cutting series as shown in Fig. 9 and Fig. 10. A large stand can be cut clear xmder this arrange- ment with as much protection to reproduction as may be secured in a small stand with a single cutting series. Repro- duction may be secured either artificially or naturally. Where the latter method is used the uncut portions of each cutting series furnish seed and protection to seedlings. Each succes- sive cutting should follow its predecessor as soon as reproduc- tion is established on the last strip cut. This may vary from two to five years. If natural reproduction has not started in satisfactory amount at the end of five years, resort should be taken to artificial 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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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforestsandforestry
