Tree-ring width of Quercus species from historical object sample 5526B/18A, N...

Species: Quercus species; No of rings: 60; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 8; Last ring under bark:...物种：栎属（Quercus）物种；年轮数：60；树龄未测定；髓（pith）：不适用；心材（heartwood）：完整；边材（sapwood）：不完整；边材年轮数：8；树皮下的最后一轮年轮：……