Tree-ring width of Quercus species from historical object sample 5480B/06B, N...

Species: Quercus species; No of rings: 71; first year: 1208; end year: 1279; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring...物种：栎属（Quercus）物种；年轮数：71；起始年轮年份：1208年；结束年轮年份：1279年；髓心（Pith）：不适用；心材（Heartwood）：缺失；边材（Sapwood）：缺失；边材年轮数：0；最后一轮年轮……