Tree-ring width of Quercus species from historical object sample 5817B/03A, Netherlands, Zutphen@en

Species: Quercus species; No of rings: 64; first year: 1513; end year: 1577; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 10; Last ring under bark: present物种：栎属（Quercus）物种；总年轮数：64轮；起始年份：1513年；结束年份：1577年；髓心（Pith）：不适用；心材（Heartwood）：完整；边材（Sapwood）：完整；边材年轮数：10轮；树皮下方存在最后一轮年轮：存在