Forest Resources of Chile as a Basis for Industrial ExpansionUSFS, 1946 - 256 páginas |
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Página viii
... tion , by species 222 22 2 2 2 mm in 30 32 35 35 Table 18 . Table 19 . Average annual cutting depletion of sawtimber volume ( in thousand board feet ) , by zone , species and province group Average annual cubic volume of timber killed ...
... tion , by species 222 22 2 2 2 mm in 30 32 35 35 Table 18 . Table 19 . Average annual cutting depletion of sawtimber volume ( in thousand board feet ) , by zone , species and province group Average annual cubic volume of timber killed ...
Página 1
... tion , fire , and grazing to mere remnants on uncultivated slopes and ridges . The provinces to the immediate south from Maule to the Bio - Bio are also essentially woodland but here the rainfall is higher , up to 200 centimeters ...
... tion , fire , and grazing to mere remnants on uncultivated slopes and ridges . The provinces to the immediate south from Maule to the Bio - Bio are also essentially woodland but here the rainfall is higher , up to 200 centimeters ...
Página 41
... tion , the easy accessibility of most planted stands permits the salvage of almost all the trees killed by these agencies . No serious losses of epidemic character have yet occurred in the plantations , although such losses constitute a ...
... tion , the easy accessibility of most planted stands permits the salvage of almost all the trees killed by these agencies . No serious losses of epidemic character have yet occurred in the plantations , although such losses constitute a ...
Página 50
... tion is an expedient only . Under good management the rotation age for this species should be at least 20 years in order to obtain maximum mean annual growth . A substantial and prompt increase in the area of Euca- lyptus plantation in ...
... tion is an expedient only . Under good management the rotation age for this species should be at least 20 years in order to obtain maximum mean annual growth . A substantial and prompt increase in the area of Euca- lyptus plantation in ...
Página 58
... tion and volume per unit of area . Variation in the factors of cost and in selling prices exists within a given province as well as between provinces . There is one constant cost differential between the several lumber - producing ...
... tion and volume per unit of area . Variation in the factors of cost and in selling prices exists within a given province as well as between provinces . There is one constant cost differential between the several lumber - producing ...
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Términos y frases comunes
50 percent adequate Alamo Alerce Araucaria Arauco Average stump height Bio-Bio board-foot breast height briquettes Canelo charcoal Chile Chilean Chiloe Cipres Coigue conifers construction consumption Coquimbo cost cubic volume diameter at breast Douglas-fir equals tree diameter equipment estimated Eucalyptus export forest land forest products forest resource fuel fuelwood furniture grade growth hardwood hauling hectares height equals tree Height in 16.3-foot inches Insignis Pine kiln Laurel Lingue Llanquihue logs Luma lumber Magallanes Malleco Manio manufacture material meters mill operations million board feet million cubic feet natural forest Olivillo panels percent of d.b.h. pesos pile plant Plate plywood present Province Group Puerto Montt pulp Rauli reasonable Roble Santiago sawmill sawtimber Sawtimber Portion shingles small mill solid wood species stump height equals supply Talca Tepa thickness thousand board feet Tineo tion Ulmo United utilization Valdivia veneer Volume Table Volumes shown wood volume woodland zone