Tree-ring width of Picea abies from historical object sample 6487B/08A, Nethe...

Species: Picea abies; No of rings: 40; first year: 1756; end year: 1796; Pith: not applicable; Heartwood: absent; Sapwood: unknown; Number of sapwood rings: 0; Last ring under...物种：欧洲云杉（Picea abies）；总年轮数：40；起始年份：1756；终止年份：1796；髓心：不适用；心材：缺失；边材：未知；边材年轮数：0；最后一轮年轮位于……