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Pattern of xylem phenology in conifers of cold ecosystems at the Northern Hemisphere
S. Rossi, T. Anfodillo, K. Čufar, HE. Cuny, A. Deslauriers, P. Fonti, D. Frank, J. Gričar, A. Gruber, JG. Huang, T. Jyske, J. Kašpar, G. King, C. Krause, E. Liang, H. Mäkinen, H. Morin, P. Nöjd, W. Oberhuber, P. Prislan, CB. Rathgeber, A....
Jazyk angličtina Země Anglie, Velká Británie
Typ dokumentu časopisecké články
PubMed
27082838
DOI
10.1111/gcb.13317
Knihovny.cz E-zdroje
- MeSH
- cévnaté rostliny * MeSH
- ekosystém MeSH
- nízká teplota * MeSH
- roční období MeSH
- stromy MeSH
- vývoj rostlin MeSH
- xylém * MeSH
- Publikační typ
- časopisecké články MeSH
The interaction between xylem phenology and climate assesses forest growth and productivity and carbon storage across biomes under changing environmental conditions. We tested the hypothesis that patterns of wood formation are maintained unaltered despite the temperature changes across cold ecosystems. Wood microcores were collected weekly or biweekly throughout the growing season for periods varying between 1 and 13 years during 1998-2014 and cut in transverse sections for assessing the onset and ending of the phases of xylem differentiation. The data set represented 1321 trees belonging to 10 conifer species from 39 sites in the Northern Hemisphere and covering an interval of mean annual temperature exceeding 14 K. The phenological events and mean annual temperature of the sites were related linearly, with spring and autumnal events being separated by constant intervals across the range of temperature analysed. At increasing temperature, first enlarging, wall-thickening and mature tracheids appeared earlier, and last enlarging and wall-thickening tracheids occurred later. Overall, the period of wood formation lengthened linearly with the mean annual temperature, from 83.7 days at -2 °C to 178.1 days at 12 °C, at a rate of 6.5 days °C(-1) . April-May temperatures produced the best models predicting the dates of wood formation. Our findings demonstrated the uniformity of the process of wood formation and the importance of the environmental conditions occurring at the time of growth resumption. Under warming scenarios, the period of wood formation might lengthen synchronously in the cold biomes of the Northern Hemisphere.
Biotechnical Faculty University of Ljubljana Jamnikarjeva 101 Ljubljana 1000 Slovenia
LERFoB INRA AgroParisTech F 54000 Nancy France
Natural Resources Institute Finland PO Box 18 Vantaa 01301 Finland
Slovenian Forestry Institute Vecna pot 2 Ljubljana 1000 Slovenia
Swiss Federal Research Institute WSL Birmensdorf CH 8903 Switzerland
Citace poskytuje Crossref.org
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- $a Rossi, Sergio $u Département des Sciences Fondamentales, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC G7H 2B1, Canada. Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Tianhe District, Guangzhou, 510650, China. Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Tianhe District, Guangzhou, 510650, China.
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- $a The interaction between xylem phenology and climate assesses forest growth and productivity and carbon storage across biomes under changing environmental conditions. We tested the hypothesis that patterns of wood formation are maintained unaltered despite the temperature changes across cold ecosystems. Wood microcores were collected weekly or biweekly throughout the growing season for periods varying between 1 and 13 years during 1998-2014 and cut in transverse sections for assessing the onset and ending of the phases of xylem differentiation. The data set represented 1321 trees belonging to 10 conifer species from 39 sites in the Northern Hemisphere and covering an interval of mean annual temperature exceeding 14 K. The phenological events and mean annual temperature of the sites were related linearly, with spring and autumnal events being separated by constant intervals across the range of temperature analysed. At increasing temperature, first enlarging, wall-thickening and mature tracheids appeared earlier, and last enlarging and wall-thickening tracheids occurred later. Overall, the period of wood formation lengthened linearly with the mean annual temperature, from 83.7 days at -2 °C to 178.1 days at 12 °C, at a rate of 6.5 days °C(-1) . April-May temperatures produced the best models predicting the dates of wood formation. Our findings demonstrated the uniformity of the process of wood formation and the importance of the environmental conditions occurring at the time of growth resumption. Under warming scenarios, the period of wood formation might lengthen synchronously in the cold biomes of the Northern Hemisphere.
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