Looking for differences in wood properties as a function of the felling date: lunar phase-correlated variations in the drying behavior of Norway Spruce (Picea abies Karst.) and Sweet Chestnut (Castanea sativa Mill.)

Zürcher, Ernst; Schlaepfer, R.; Conedera, M.; Giudici, F. (2010). Looking for differences in wood properties as a function of the felling date: lunar phase-correlated variations in the drying behavior of Norway Spruce (Picea abies Karst.) and Sweet Chestnut (Castanea sativa Mill.) Trees, 24(1), pp. 31-41. Springer 10.1007/s00468-009-0376-2

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A large-scale field experiment on the drying behavior of Norway Spruce (Picea abies Karst.) and Sweet Chestnut (Castanea sativa Mill.) in relation to the felling date was conducted over a period of 24weeks in order to investigate the existence of variations linked to lunar rhythms, which are mentioned as having a role in many traditional forestry practices. The measured criteria were the water loss from fresh to dry state, the shrinkage linked to this water loss, and the relative density (ratio between the dry density and the initial fresh density) for both sapwood and heartwood in Picea and heartwood in Castanea. In addition to seasonal trends, slight but significant variations with lunar periodicities (both synodic and sidereal; to a much lesser extent tropic) characterize the three investigated criteria. These lunar rhythmicities occur in both Picea and Castanea, in heartwood and sapwood. These results raise new questions and perspectives about a rhythmic character of the wood–water relation.

Item Type:

Journal Article (Original Article)

Division/Institute:

BFH Zentren > BFH Zentrum Holz - Ressource und Werkstoff
Department of Architecture, Wood and Civil Engineering
Department of Architecture, Wood and Civil Engineering > Bereich Forschung & Entwicklung, Dienstleistungen und Weiterbildung
Department of Architecture, Wood and Civil Engineering > Bereich Forschung & Entwicklung, Dienstleistungen und Weiterbildung > Institut für Werkstoffe und Holztechnologie

Name:

Zürcher, Ernst; Schlaepfer, R.; Conedera, M. and Giudici, F.

Subjects:

Q Science > Q Science (General)
T Technology > T Technology (General)
T Technology > TP Chemical technology

ISSN:

0931-1890

Publisher:

Springer

Language:

English

Submitter:

Sally Haddad

Date Deposited:

29 Apr 2020 11:35

Last Modified:

03 May 2020 15:26

Publisher DOI:

10.1007/s00468-009-0376-2

Uncontrolled Keywords:

Forestry traditions Moon phases Technical drying Wood–water relation

ARBOR DOI:

10.24451/arbor.11506

URI:

https://arbor.bfh.ch/id/eprint/11506

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