Tree-ring width of Quercus species from historical object sample 2160B/17A, Netherlands, Groningen@en
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Species: Quercus species; No of rings: 62; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 18; Last ring under bark: present
物种：栎属（Quercus）物种；年轮数：62圈；年龄未测定；髓心：不适用；心材：完整；边材：完整；边材年轮数：18；树皮下最后一圈年轮：存在
创建时间：
2026-04-30
