Tree-ring width of Quercus species from historical object sample 6620B/03A, R...

Species: Quercus species; No of rings: 60; first year: 1950; tree-death year: 2010; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 11;...物种：栎属（Quercus）物种；总年轮数：60；首个年轮对应年份：1950年；树木死亡年份：2010年；髓心：不适用；心材：完整；边材：不完整；边材年轮数：11；……