. American forestry. Forests and forestry. 49G AMERICAN FORESTRY ??'"^. Photo by ll'ancii H. Miller. PURE OAK FOREST, CANTON OF CLOS. thinning, taking out from one-half to two-thirds of the thick growth. Periodic thinnings follow at intervals of ten years, the general principle being to keep the tops of the dominant trees so that they will just meet when the next thinning comes due, and to keep enough of the sub-stage trees to protect the trunks of the first-class ones from the sun. None of these thinnings are .wasted,—in fact nothing is ever wasted in France,—and the income from all clas
. American forestry. Forests and forestry. 49G AMERICAN FORESTRY ??'"^. Photo by ll'ancii H. Miller. PURE OAK FOREST, CANTON OF CLOS. thinning, taking out from one-half to two-thirds of the thick growth. Periodic thinnings follow at intervals of ten years, the general principle being to keep the tops of the dominant trees so that they will just meet when the next thinning comes due, and to keep enough of the sub-stage trees to protect the trunks of the first-class ones from the sun. None of these thinnings are .wasted,—in fact nothing is ever wasted in France,—and the income from all classes of thinnings amounts to two- fifths of the market value of the final crop. The thicket-stage trimmings com- pete direct in the markets with coppice products, and the others furnish lum- ber of increasingly valuable sizes. Arrived at the end of the revolution, which is at present taken at GO years for Sylvester pine, 75 for oak, and 100 for fir, the seed cut is made in the nearest seed year for that canton (they occur every two to five years for most species) followed by the secondary cut. and then the terminal cut when the new growth on the canton is established. In a French standard forest of an hun- dred cantons, each year sees one ter- minal cut, one secondary cut, one seed- ing cut and ten thinning cuts; in all thirteen cantons being cut over, so that there is plenty of business going on even though the cantons may be of only a few hectares area each. As the system is one which we will adopt in America for nearly all forests not in close touch with rail facilities (such as replanted barrens and worn out pasturage), I will give here a few generalizations as to how to set about converting a wild American forest into a French Standard forest. The first desideratum is uniformity of species, wherefore when you cut cord wood from your woodlot or forest, replant the spot liberally with the species you have selected, preferably the dominant species already placed there by n
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
