Ключевые слова: agriculture, annual, background, brown, circle, coniferous, construction, cut, deforest, deforestation, energy, felling, finland, forest, forestry, fuel, fuelwood, growth, heat, industry, log, logging, logpile, logs, lumber, material, natural, nature, pattern, pile, pine, resource, ring, rural, saw, stack, stacked, storage, sustainable, timber, tree, trunk, wood, wooden,