Ключевые слова: age, ageing, amount, bare, bark, bleak, branch, carve, chopping, circle, clearing, concentric, conservation, construction, crime, cut, deforestation, destruction, detail, ecology, energy, environment, felled, felled trees, felling, firewood, forestation, forestry, forestry industry, global warming, growth, hardwood, industry, industry tree, log, lumber, material, natural, nature, numbers, paper, pile, pine, principle, timber, tree felling, trunks, wood, wooden, woodland,