Tree-ring width of Quercus species from historical object sample 5166B/12A, Netherlands, Dronryp/Friesland

Species: Quercus species; No of rings: 88; first year: 1468; end year: 1556; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent物种：栎属（Quercus species）；年轮数量：88轮；起始年份：1468年；结束年份：1556年；木心：不适用；心材：缺失；边材：缺失；边材轮数：0轮；树皮下方最后一轮：缺失。