Tree-ring width of Picea abies from historical object sample 6486B/05A, Nethe...

Species: Picea abies; No of rings: 137; first year: 1509; end year: 1646; Pith: not applicable; Heartwood: absent; Sapwood: unknown; Number of sapwood rings: 0; Last ring under...物种：欧洲云杉（Picea abies）；年轮总数：137；起始年份：1509年；终止年份：1646年；髓心：不适用；心材：缺失；边材：未知；边材年轮数：0；最末年轮位于……