Tree-ring width of Quercus species from historical object sample 6496B/02H, Netherlands, Dongeradeel-Engelsmanplaat

Species: Quercus species; No of rings: 45; first year: 1763; end year: 1808; 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：45；起始年份：1763；结束年份：1808；髓心：不适用；心材：不存在；边材：不存在；边材年轮数：0；树皮下的最外层年轮：不存在。