Ключевые слова: abstract, age, background texture, bark, brown, centuries, century, clean air, co2, co2 emissions, cracks, forest, green, growth, knob, knot, large, life, light, lines, lines background, log, lumber, material, natural, naturally, nature background, oak texture, oak tree, oak trees, oak wood, old, pattern, patterns, robust, rough, rough texture, shadow, strong, surface, sustainability, sustainable, texture background, tree, trunk, trunk tree, wood, wooden, woods,