Tree-ring width of Quercus species from historical object sample 6749B/05M, Germany, Oberderdingen-Flehingen@en

Species: Quercus species; No of rings: 137; first year: 1673; tree-death year: 1810; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent物种：栎属（Quercus）物种；年轮数：137；初始年份：1673；树木死亡年份：1810；髓心（Pith）：不适用；心材（Heartwood）：缺失；边材（Sapwood）：缺失；边材年轮数：0；树皮下最后年轮（Last ring under bark）：缺失