The special features of tree ring gas chronologies

Boris G. Ageev; Aleksandr N. Gruzdev; Valeria A. Sapozhnikova

doi:10.1117/12.2199390

19 November 2015 The special features of tree ring gas chronologies

Boris G. Ageev, Aleksandr N. Gruzdev, Valeria A. Sapozhnikova

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 968056 (2015) https://doi.org/10.1117/12.2199390
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

Stem wood is known to contain significant amounts of gases. However, literature data on the functional role of the gases are lacking. The results of our experiments show that porous wood structure is capable of annual accumulation (sorption) of the stem gas components that include H₂O vapor and plant cell-respired CO₂. This allows for development of additional chronologies to be used for gaining a deeper insight into the behavior of the stem gases. An analysis of the vacuum-extracted wood tree ring CO₂ and H₂O has revealed that the CO₂ and H₂O chronologies are associated with interannual variations in the total pressure of the gas components in the tree rings and are characterized by short-period cycles independent of tree age and by long-period variations with tree age. Our investigations led us to propose a procedure for using the CO₂ content as a marker of year-to-year variations in the total pressure of the residual gas components found in wood tree rings.

Citation Download Citation

Boris G. Ageev, Aleksandr N. Gruzdev, and Valeria A. Sapozhnikova "The special features of tree ring gas chronologies", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 968056 (19 November 2015); https://doi.org/10.1117/12.2199390

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