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- W3103451848 abstract "<p>Compression wood is a common tissue present in the trunk, branches and roots of mechanically stressed coniferous trees. Its main role is to increase the mechanical strength and regain the vertical orientation of a leaning stem. Compression wood is thought to influence the climate signal in different tree-ring measures. Hence trees containing compression wood are mostly excluded from tree-ring studies reconstructing past climate variability. There is a large gap of systematic work testing the potential effect of compression wood on the strength of the climate signal in different tree-ring parameters, and especially stable isotope records.</p> <p>Here we test for the first time the effect of compression wood contained in montane Norway spruce (Picea abies L. Karst) on both &#948;<sup>13</sup>C and &#948;<sup>18</sup>O tree-ring cellulose records by analyzing compression and opposite wood radii from several disturbed trees together with samples from undisturbed reference trees. We selected four trees tilted by geomorphic processes that were felled by wind, and four undisturbed reference trees in the Tatra Mountains, Poland. We qualitatively classified the strength of compression wood using wood cell anatomical characteristics (tracheid shape, cell wall thickness and presence of intercellular spaces). Then we developed tree-ring width, &#948;<sup>13</sup>C and &#948;<sup>18</sup>O chronologies from the compression wood radii and the opposite radii of the tilted trees, and from the radii of the reference trees. We tested the effect of compression wood on tree-ring cellulose &#948;<sup>13</sup>C and &#948;<sup>18</sup>O variability and on the climate signal strength. Only minor differences were found in the means of &#948;<sup>13</sup>C and &#948;<sup>18</sup>O compression, opposite and reference radii. The statistical relationships between climate variables, &#948;<sup>13</sup>C and &#948;<sup>18</sup>O remained consistent among all chronologies. Our findings suggest that moderately tilted trees containing compression wood can be used to both reconstruct past geomorphic activity, and stable-isotope based dendroclimatological research.</p>" @default.
- W3103451848 created "2020-11-23" @default.
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- W3103451848 date "2020-03-09" @default.
- W3103451848 modified "2023-10-16" @default.
- W3103451848 title "Compression wood has a minor effect on the climate signal in tree-ring stable isotopes of montane Norway spruce" @default.
- W3103451848 doi "https://doi.org/10.5194/egusphere-egu2020-9173" @default.
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