Multi-variable approach pinpoints origin of oak wood with higher precision

Linar Akhmetzyanov, Allan Buras, Ute Sass-Klaassen, Jan den Ouden, Frits Mohren, Peter Groenendijk, Ignacio García-González

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Aim: Spatial variations of environmental conditions translate into biogeographical patterns of tree growth. This fact is used to identify the origin of timber by means of dendroprovenancing. Yet, dendroprovenancing attempts are commonly only based on ring-width measurements, and largely neglect additional tree–ring variables. We explore the potential of using wood anatomy as a dendroprovenancing tool, and investigate whether it increases the precision of identifying the origin of oak wood. Since different tree–ring variables hold different information on environmental conditions prevailing at specific times of the growing season—which vary between source regions—we hypothesize that their inclusion allows more precise dendroprovenancing. Location: Europe, Spain. Taxon: Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus faginea Lam., Quercus pyrenaica Willd. Methods: We sampled four oak species across Northern Spain, i.e. from the Basque country and Cantabria and—in the Basque country—from low to high elevation (topographic/latitudinal gradient). We measured multiple tree–ring variables to (a) extract complementary variables; (b) present statistical relations among them; (c) analyse region-specific variation in their patterns based on time–series of individual trees; and (d) determine underlying climate–growth relationships. Leave-one-out analysis was used to test whether a combination of selected variables allowed dendroprovenancing of a randomly selected tree within the area. Results: A combination of latewood width (LW) and earlywood vessel size was used to pinpoint the origin of oak wood with higher precision than ring width or LW only. Variation in LW pinpointed the wood to east and west areas, whereas variation in vessels assigned wood to locations along a latitudinal/topographic gradient. The climatic triggers behind these gradients are respectively an east–west gradient in June–July temperature and a north–south gradient in winter/spring temperatures. The leave-one-out analyses supported the robustness of these results. Main conclusions: Integration of multiple wood–xylem anatomical variables analysed with multivariate techniques leads to higher precision in the dendroprovenancing of ring-porous oak species.

LanguageEnglish
Pages1163-1177
JournalJournal of Biogeography
Volume46
Issue number6
Early online date11 May 2019
DOIs
Publication statusPublished - Jun 2019

Fingerprint

Quercus
latewood
growth rings
tree ring
xylem vessels
Quercus faginea
Spain
Quercus pyrenaica
vessel
earlywood
environmental conditions
environmental factors
Quercus petraea
wood anatomy
Quercus robur
tree growth
latitudinal gradient
xylem
spatial variation
time series analysis

Keywords

  • dendroprovenancing
  • earlywood vessels
  • latewood width
  • multi-variable approach
  • Quercus spp.
  • region-specific growth patterns
  • wood anatomy

Cite this

Akhmetzyanov, Linar ; Buras, Allan ; Sass-Klaassen, Ute ; den Ouden, Jan ; Mohren, Frits ; Groenendijk, Peter ; García-González, Ignacio. / Multi-variable approach pinpoints origin of oak wood with higher precision. In: Journal of Biogeography. 2019 ; Vol. 46, No. 6. pp. 1163-1177.
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abstract = "Aim: Spatial variations of environmental conditions translate into biogeographical patterns of tree growth. This fact is used to identify the origin of timber by means of dendroprovenancing. Yet, dendroprovenancing attempts are commonly only based on ring-width measurements, and largely neglect additional tree–ring variables. We explore the potential of using wood anatomy as a dendroprovenancing tool, and investigate whether it increases the precision of identifying the origin of oak wood. Since different tree–ring variables hold different information on environmental conditions prevailing at specific times of the growing season—which vary between source regions—we hypothesize that their inclusion allows more precise dendroprovenancing. Location: Europe, Spain. Taxon: Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus faginea Lam., Quercus pyrenaica Willd. Methods: We sampled four oak species across Northern Spain, i.e. from the Basque country and Cantabria and—in the Basque country—from low to high elevation (topographic/latitudinal gradient). We measured multiple tree–ring variables to (a) extract complementary variables; (b) present statistical relations among them; (c) analyse region-specific variation in their patterns based on time–series of individual trees; and (d) determine underlying climate–growth relationships. Leave-one-out analysis was used to test whether a combination of selected variables allowed dendroprovenancing of a randomly selected tree within the area. Results: A combination of latewood width (LW) and earlywood vessel size was used to pinpoint the origin of oak wood with higher precision than ring width or LW only. Variation in LW pinpointed the wood to east and west areas, whereas variation in vessels assigned wood to locations along a latitudinal/topographic gradient. The climatic triggers behind these gradients are respectively an east–west gradient in June–July temperature and a north–south gradient in winter/spring temperatures. The leave-one-out analyses supported the robustness of these results. Main conclusions: Integration of multiple wood–xylem anatomical variables analysed with multivariate techniques leads to higher precision in the dendroprovenancing of ring-porous oak species.",
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author = "Linar Akhmetzyanov and Allan Buras and Ute Sass-Klaassen and {den Ouden}, Jan and Frits Mohren and Peter Groenendijk and Ignacio Garc{\'i}a-Gonz{\'a}lez",
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Multi-variable approach pinpoints origin of oak wood with higher precision. / Akhmetzyanov, Linar; Buras, Allan; Sass-Klaassen, Ute; den Ouden, Jan; Mohren, Frits; Groenendijk, Peter; García-González, Ignacio.

In: Journal of Biogeography, Vol. 46, No. 6, 06.2019, p. 1163-1177.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Multi-variable approach pinpoints origin of oak wood with higher precision

AU - Akhmetzyanov, Linar

AU - Buras, Allan

AU - Sass-Klaassen, Ute

AU - den Ouden, Jan

AU - Mohren, Frits

AU - Groenendijk, Peter

AU - García-González, Ignacio

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N2 - Aim: Spatial variations of environmental conditions translate into biogeographical patterns of tree growth. This fact is used to identify the origin of timber by means of dendroprovenancing. Yet, dendroprovenancing attempts are commonly only based on ring-width measurements, and largely neglect additional tree–ring variables. We explore the potential of using wood anatomy as a dendroprovenancing tool, and investigate whether it increases the precision of identifying the origin of oak wood. Since different tree–ring variables hold different information on environmental conditions prevailing at specific times of the growing season—which vary between source regions—we hypothesize that their inclusion allows more precise dendroprovenancing. Location: Europe, Spain. Taxon: Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus faginea Lam., Quercus pyrenaica Willd. Methods: We sampled four oak species across Northern Spain, i.e. from the Basque country and Cantabria and—in the Basque country—from low to high elevation (topographic/latitudinal gradient). We measured multiple tree–ring variables to (a) extract complementary variables; (b) present statistical relations among them; (c) analyse region-specific variation in their patterns based on time–series of individual trees; and (d) determine underlying climate–growth relationships. Leave-one-out analysis was used to test whether a combination of selected variables allowed dendroprovenancing of a randomly selected tree within the area. Results: A combination of latewood width (LW) and earlywood vessel size was used to pinpoint the origin of oak wood with higher precision than ring width or LW only. Variation in LW pinpointed the wood to east and west areas, whereas variation in vessels assigned wood to locations along a latitudinal/topographic gradient. The climatic triggers behind these gradients are respectively an east–west gradient in June–July temperature and a north–south gradient in winter/spring temperatures. The leave-one-out analyses supported the robustness of these results. Main conclusions: Integration of multiple wood–xylem anatomical variables analysed with multivariate techniques leads to higher precision in the dendroprovenancing of ring-porous oak species.

AB - Aim: Spatial variations of environmental conditions translate into biogeographical patterns of tree growth. This fact is used to identify the origin of timber by means of dendroprovenancing. Yet, dendroprovenancing attempts are commonly only based on ring-width measurements, and largely neglect additional tree–ring variables. We explore the potential of using wood anatomy as a dendroprovenancing tool, and investigate whether it increases the precision of identifying the origin of oak wood. Since different tree–ring variables hold different information on environmental conditions prevailing at specific times of the growing season—which vary between source regions—we hypothesize that their inclusion allows more precise dendroprovenancing. Location: Europe, Spain. Taxon: Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus faginea Lam., Quercus pyrenaica Willd. Methods: We sampled four oak species across Northern Spain, i.e. from the Basque country and Cantabria and—in the Basque country—from low to high elevation (topographic/latitudinal gradient). We measured multiple tree–ring variables to (a) extract complementary variables; (b) present statistical relations among them; (c) analyse region-specific variation in their patterns based on time–series of individual trees; and (d) determine underlying climate–growth relationships. Leave-one-out analysis was used to test whether a combination of selected variables allowed dendroprovenancing of a randomly selected tree within the area. Results: A combination of latewood width (LW) and earlywood vessel size was used to pinpoint the origin of oak wood with higher precision than ring width or LW only. Variation in LW pinpointed the wood to east and west areas, whereas variation in vessels assigned wood to locations along a latitudinal/topographic gradient. The climatic triggers behind these gradients are respectively an east–west gradient in June–July temperature and a north–south gradient in winter/spring temperatures. The leave-one-out analyses supported the robustness of these results. Main conclusions: Integration of multiple wood–xylem anatomical variables analysed with multivariate techniques leads to higher precision in the dendroprovenancing of ring-porous oak species.

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KW - latewood width

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KW - Quercus spp.

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KW - wood anatomy

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