Tree-ring width of Quercus species from historical object sample 5908B/12A, Netherlands, Groningen
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Species: Quercus species; No of rings: 60; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 6; Last ring under bark: absent
物种：栎属（Quercus）物种；总年轮数：60；年龄未测定；髓心：不适用；心材：完整；边材：不完整；边材年轮数：6；树皮下末次年轮：缺失
创建时间：
2025-11-07
