Tree-ring chronology of Picea obovata (Sibirean spruce) compiled from tree samples SHCHPCOB
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Species PCOB; No of trees 12; No samples 24; No of years 207; Begin 1784; End 1990; Creation date 1995-03-01
创建时间：
2007-01-01
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Species PCOB; No of trees 12; No samples 24; No of years 207; Begin 1784; End 1990; Creation date 1995-03-01