| Title: | Timeline of autumn phenology in temperate deciduous trees |
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| Authors: | ID Dox, Inge (Author)
ID Gričar, Jožica (Author)
ID Marchand, Lorène Julia (Author)
ID Leys, Sebastien (Author)
ID Zuccarini, Paolo (Author)
ID Geron, Charly (Author)
ID Prislan, Peter (Author)
ID Mariën, Bertold (Author)
ID Fonti, Patrick (Author)
ID Lange, Holger (Author)
ID Peñuelas, Josep (Author)
ID Van den Bulcke, Jan (Author)
ID Campioli, Matteo (Author) |
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| Files: |  PDF - Presentation file, download (2,04 MB)
MD5: B51FECC019EB6A01DD247FF7B8D519C2
 URL - Source URL, visit https://academic.oup.com/treephys/article/40/8/1001/5825605
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  SciVie - Slovenian Forestry Institute
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| Abstract: | Cessation of xylem formation or wood growth (CWG) and onset of foliar senescence (OFS) are key autumn phenological events in temperate deciduous trees. Their timing is fundamental for development and survival of trees, ecosystem nutrient cycling, the seasonal exchange of matter and energy between the biosphere and atmosphere and affect the impact and feedback of forests to global change. A large-scale experimental effort and improved observational methods have allowed us to compare the timing of CWG and OFS for different deciduous tree species in Western Europe, in particularly silver birch, a pioneer species, and European beech, a late-succession species, at stands of different latitudes, of different levels of site fertility, and for two years with contrasting meteorological and drought conditions i.e., the low-moderately dry 2017 and the extremely dry 2018. Specifically, we tested whether foliar senescence started before, after or concurrently with CWG. OFS and CWG occurred generally between late September and early November, with larger differences across species and sites for OFS. Foliar senescence started concurrently with CWG in most cases, except for the drier 2018 and, for beech, at the coldest site, where OFS occurred significantly later than CWG. Behavior of beech in Spain, the southern edge of its European distribution, was unclear, with no CWG, but very low wood growth at the time of OFS. Our study suggests that OFS is generally triggered by the same drivers of CWG or when wood growth decreases in late summer, indicating an overarching mechanism of sink limitation as a possible regulator of the timing of foliar senescence. |
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| Keywords: | autumn phenology, xylem formation, foliar senescence, cambium, chlorophyll, radial growth, wood, decidiuous trees, common aspen, common beech, pedunculate oak, silver birch |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2020 |
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| Number of pages: | str. 1001-1013 |
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| Numbering: | Vol. 40, iss. 8 |
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| PID: | 20.500.12556/DiRROS-12091  |
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| UDC: | 630*18:630*8 |
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| ISSN on article: | 0829-318X |
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| DOI: | 10.1093/treephys/tpaa058 |
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| COBISS.SI-ID: | 13951747 |
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| Publication date in DiRROS: | 10.06.2020 |
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| Views: | 1905 |
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| Downloads: | 1143 |
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