Ключевые слова: abstract, age, ages, annual, annual rings, archaeology, background, bark, biology, calendar, cells, cycles, date, dating, dendrochronology, ecology, environment, environmental, gravel, growth, growth rings, illness, image, information, layer, life, natural, nature, oak, paleoecology, patterns, pine, radiocarbon, radiocarbon dating, rings, scientific, sick, source, structure, study, sunspot, timber, time, tree, tree trunk, treerings, trunk, vascular cambium, vertica, vertical, width, wood, wooden, woods, year,