A preliminary seasonal precipitation reconstruction from tree-ring stable carbon isotopes at Mt. Helan, China, since AD 1804

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• 作者：Liu ; Yu ; Ma ; Limin ; Leavitt ; Steven W. ; Cai ; Qiufang ; Liu ; Weiguo
• 关键词：Mt. Helan ; China ; Chinese pine ; Pinus tabulaeformis ; Tree-ring δ ; ¹³C ; Precipitation reconstruction
• 刊名：Global and Planetary Change
• 出版年：2004
• 出版时间：July, 2004
• 年：2004
• 卷：41
• 期：3-4
• 页码：229-239
• 全文大小：373 K

文摘

The relationship between the stable carbon isotope composition of tree rings from Mt. Helan, China, and precipitation was investigated for the period AD 1804–1997. The results reveal that in the Mt. Helan region, δ¹³C of tree rings negatively correlates with the total precipitation from February to July. We calculated discrimination (Δ) to remove the effects of δ¹³C of atmospheric CO₂ on the tree-ring δ¹³C series, and reconstructed February to July precipitation back to 1804 using linear regression (R²