Tree-ring width of Quercus species from historical object sample 6615B/08B, N...

Species: Quercus species; No of rings: 56; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 9; Last ring under bark:...物种：栎属（Quercus）物种；年轮数：56；年龄未测定；髓（Pith）：不适用；心材（Heartwood）：完整；边材（Sapwood）：不完整；边材年轮数：9；树皮下的最后一圈年轮：……