A Direct Comparison of Sympatric High-Latitude Pinus contorta and Picea albertiana Ring-Width Chronologies
| Autor: | W. L Strong |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Pinus contorta
010506 paleontology Atmospheric Science 010504 meteorology & atmospheric sciences Paleontology Geology Forestry Biology biology.organism_classification 01 natural sciences Sympatric speciation Botánica High latitude Paleoclimatology Paleoecology Dendrochronology Physical geography 0105 earth and related environmental sciences Chronology |
| Zdroj: | Tree-Ring Research. 76:1 |
| ISSN: | 1536-1098 |
| DOI: | 10.3959/trr2018-18 |
| Popis: | An emerging trend in tree-ring research is use of multiple species for reconstructing paleoclimates, but the possible simultaneous use of boreal-cordilleran species is untested. In this study, ring-width chronologies of sympatric Pinus contorta (lodgepole pine, n = 116 series) and Picea albertiana (western white spruce, n = 348 series) were constructed to assess their temporal (dis)similarities and correlative relationships with meteorological variables. Chronology construction was based on multiple Regional Curve Standardization. Most (97.5%) Pinus chronology values occurred within ±1 SD of their Picea counterparts, but Picea values tended to be slightly less (sign-test, p < 0.001, n = 201). Pinus ring widths were more frequently (16 versus 9) and more strongly correlated (U-test, p < 0.009) with 1942–2013 meteorological variables than Picea. Both species were correlated with moisture variables, but Picea was not correlated with those of temperature. Pinus and Picea ring-width variation was best explained by summer (r = –0.434) and annual (r = –0.426) heat-moisture index values (p < 0.001, n = 72) among tested variables, respectively. Although seldom used, P. contorta appears as suitable as conventionally-used P. albertiana based on chronology similarity, but a greater diversity of significant correlation outcomes suggest Pinus is potentially more useful for boreal-cordilleran paleoclimate reconstruction. |
| Databáze: | OpenAIRE |
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