Articles | Volume 17, issue 18
https://doi.org/10.5194/bg-17-4559-2020
https://doi.org/10.5194/bg-17-4559-2020
Research article
 | 
18 Sep 2020
Research article |  | 18 Sep 2020

Chemical destaining and the delta correction for blue intensity measurements of stained lake subfossil trees

Feng Wang, Dominique Arseneault, Étienne Boucher, Shulong Yu, Steeven Ouellet, Gwenaëlle Chaillou, Ann Delwaide, and Lily Wang

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Cited articles

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Short summary
Wood stain is challenging the use of the blue intensity technique for dendroclimatic reconstructions. Using stained subfossil trees from eastern Canadian lakes, we compared chemical destaining approaches with the delta blue mathematical correction of blue intensity data. Although no chemical treatment was completely efficient, the delta blue method is unaffected by the staining problem and thus is promising for climate reconstructions based on lake subfossil material.
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