Tree-ring width of Quercus species from historical object sample 6685B/12M, France, Daubeuf-la-Campagne@en

Species: Quercus species; No of rings: 40; first year: 1402; tree-death year: 1442; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent物种：栎属（Quercus）物种；年轮总数：40；起始年份：1402；树木死亡年份：1442；髓（Pith）：不适用；心材（Heartwood）：缺失；边材（Sapwood）：缺失；边材年轮数：0；树皮下的最后一轮年轮：缺失