Tree-ring width of Quercus species from historical object sample 6770B/05A, Germany, Borgholzhausen@en

Species: Quercus species; No of rings: 58; first year: 1791; tree-death year: 1849; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 16; Last ring under bark: present物种：栎属（Quercus）物种；年轮数：58；初始年份：1791；树木死亡年份：1849；髓心（Pith）：不适用；心材（Heartwood）：完整；边材（Sapwood）：完整；边材年轮数：16；树皮下末次年轮：存在