Ключевые слова: backgrounds, bark, biomass, bionomics, brown, chop, crop, detail, ecological, ecology, energy, environment, fell, firewood, forest, forestry, fuel, grass, grow, harvesting, horizontal, industry, lumber, material, natural, nature, ordered, outdoors, pile, raw, rough, rural, saw, stack, standing, structure, surface, sustainable, timber, tree, trunk, trunks, wooden, woodland, woodpile,