Ключевые слова: abstract, background, biomass, bole, brown, carpentry, cut, danger, eco, ecology, empty, energy, environment, eucalypus, firewood, fuel, harvest, heartwood, industry, layout, lumber, lumberyard, natural, nature, outside, pattern, pile, plant, primary, product, pulp, recycle, rustic, sawdust, sheets, spruce, stem, surface, texture, timber, tree, trunk, wallpaper, waste, white, wood,