Ключевые слова: background, bark, berlin, blade, boy, branch, care, circle, color image, cross section, cut, cutting, deforestation, environmental conservation, firewood, forest, forestry, gardener, gardening, germany, green, growth, horizontal, industry, leaf, log, man, material, nature, no people, old, outdoor, people, pine, pine tree, plant, pruning, saw, season, single, social issues, sunlight, timber, tree, tree trunk, trunk, winter, wood, woodland,