Ключевые слова: aging, annual, backgrounds, bark, brown, circle, coast, concentric, conifer, crack, cross, cut, dead, deforestation, disk, ecology, environment, forest, forestry, grain, history, industry, life, log, logging, logs, lumber, natural, nature, old, outdoor, passing, pattern, pine, resin, ring, round, section, structure, stump, surface, texture, textured, timber, time, tree, trunk, wood, wooden, years,