Cutting tree rings into time slices: how intra‐annual dynamics of wood formation help decipher the space‐for‐time conversion

• DOI: 10.1111/nph.17869
• Publication Date: 2021-11-19T18:13:46Z
• Authors: Gonzalo Pérez‐de‐Lis; Cyrille B. K. Rat...; Laura Fernández‐d...; Stéphane Ponton
• Keywords: Synchronicity; Tree (set theory)

Tree-ring anatomy, microdensity and isotope records provide valuable intra-annual information. However, extracting signals at that scale is challenged by the complexity of xylogenesis, where two major processes - cell enlargement wall thickening occur different times rates. We characterized space-for-time association in tree rings three conifer species examining duration, overlapping, inter-tree synchronicity interannual stability during across regular tree-ring sectors (portions equal tangential width). The number cells differentiation rates determined duration sector formation, which augmented more rapidly throughout ring for than enlargement. Increasing above c. 15 had a limited effect on improving time resolution because consecutive formation overlapped greatly time, especially narrow thickening. also resulted lower intermediate-sector enlargement, whereas all showed high stronger enhancing time-series enlargement- wall-thickening-related traits, would nevertheless produce reliable chronologies as result similar calendars trees years