Tree-ring width of Quercus species from historical object sample 6116B/06A, Netherlands, Groningen

Species: Quercus species; No of rings: 92; first year: 1381; end year: 1473; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 3; Last ring under bark: absent物种：栎属（Quercus species）；年轮数量：92；起始年份：1381；结束年份：1473；木心：不适用；心材：完整；边材：不完整；边材年轮数量：3；树皮下的最后一轮年轮：缺失。