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Warming nondormant tree roots advances aboveground spring phenology in temperate trees

Malyshev, Andrey V. (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Blume-Werry, Gesche, 1985- (author)
Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Spiller, Ophelia (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
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Smiljanić, Marko (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Weigel, Robert (author)
Plant Ecology and Ecosystems Research, University of Goettingen, Göttingen, Germany; Ecological-Botanical Garden, University of Bayreuth, Bayreuth, Germany
Kolb, Alexander (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Nze, Byron Ye (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Märker, Frederik (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Sommer, Freymuth Carl-Fried Johannes (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Kinley, Kinley (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany; Ecological-Botanical Garden, University of Bayreuth, Bayreuth, Germany
Ziegler, Jan (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany; Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
Pasang, Pasang (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Mahara, Robert (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Joshi, Silviya (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Heinsohn, Vincent (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Kreyling, Juergen (author)
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
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 (creator_code:org_t)
John Wiley & Sons, 2023
2023
English.
In: New Phytologist. - : John Wiley & Sons. - 0028-646X .- 1469-8137. ; 240:6, s. 2276-2287
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Climate warming advances the onset of tree growth in spring, but above- and belowground phenology are not always synchronized. These differences in growth responses may result from differences in root and bud dormancy dynamics, but root dormancy is largely unexplored. We measured dormancy in roots and leaf buds of Fagus sylvatica and Populus nigra by quantifying the warming sum required to initiate above- and belowground growth in October, January and February. We furthermore carried out seven experiments, manipulating only the soil and not air temperature before or during tree leaf-out to evaluate the potential of warmer roots to influence budburst timing using seedlings and adult trees of F. sylvatica and seedlings of Betula pendula. Root dormancy was virtually absent in comparison with the much deeper winter bud dormancy. Roots were able to start growing immediately as soils were warmed during the winter. Interestingly, higher soil temperature advanced budburst across all experiments, with soil temperature possibly accounting for c. 44% of the effect of air temperature in advancing aboveground spring phenology per growing degree hour. Therefore, differences in root and bud dormancy dynamics, together with their interaction, likely explain the nonsynchronized above- and belowground plant growth responses to climate warming.

Subject headings

NATURVETENSKAP  -- Biologi -- Botanik (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Botany (hsv//eng)
NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)

Keyword

below- vs aboveground dormancy
Betula pendula
Fagus sylvatica
Populus nigra
root-to-leaf communication
root-zone temperature
soil insulation
soil warming

Publication and Content Type

ref (subject category)
art (subject category)

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