Ключевые слова: background, bark, biomass, brown, circle, cut, deforestation, energy, environment, fire, firewood, forest, forestry, fuel, hardwood, heap, heating, industry, log, logging, material, natural, nature, pattern, pile, pine, plant, resource, ring, round, sawmill, stack, stock, timber, timbering, tree, trunk, winter, wood, wooden, woodpile,