Why trees grow at night

© 2021 The Authors New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 231(2021), 6 vom: 28. Sept., Seite 2174-2185
1. Verfasser: Zweifel, Roman (VerfasserIn)
Weitere Verfasser: Sterck, Frank, Braun, Sabine, Buchmann, Nina, Eugster, Werner, Gessler, Arthur, Häni, Matthias, Peters, Richard L, Walthert, Lorenz, Wilhelm, Micah, Ziemińska, Kasia, Etzold, Sophia
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't cell turgor threshold climate change day-night radial stem growth dendrometer ecophysiology photoperiod wood and bark formation xylogenesis mehr... Soil Water 059QF0KO0R Carbon 7440-44-0
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520 |a The timing of diel stem growth of mature forest trees is still largely unknown, as empirical data with high temporal resolution have not been available so far. Consequently, the effects of day-night conditions on tree growth remained uncertain. Here we present the first comprehensive field study of hourly-resolved radial stem growth of seven temperate tree species, based on 57 million underlying data points over a period of up to 8 yr. We show that trees grow mainly at night, with a peak after midnight, when the vapour pressure deficit (VPD) is among the lowest. A high VPD strictly limits radial stem growth and allows little growth during daylight hours, except in the early morning. Surprisingly, trees also grow in moderately dry soil when the VPD is low. Species-specific differences in diel growth dynamics show that species able to grow earlier during the night are associated with the highest number of hours with growth per year and the largest annual growth increment. We conclude that species with the ability to overcome daily water deficits faster have greater growth potential. Furthermore, we conclude that growth is more sensitive than carbon uptake to dry air, as growth stops before stomata are known to close 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 4 |a climate change 
650 4 |a day-night radial stem growth 
650 4 |a dendrometer 
650 4 |a ecophysiology 
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650 4 |a wood and bark formation 
650 4 |a xylogenesis 
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700 1 |a Sterck, Frank  |e verfasserin  |4 aut 
700 1 |a Braun, Sabine  |e verfasserin  |4 aut 
700 1 |a Buchmann, Nina  |e verfasserin  |4 aut 
700 1 |a Eugster, Werner  |e verfasserin  |4 aut 
700 1 |a Gessler, Arthur  |e verfasserin  |4 aut 
700 1 |a Häni, Matthias  |e verfasserin  |4 aut 
700 1 |a Peters, Richard L  |e verfasserin  |4 aut 
700 1 |a Walthert, Lorenz  |e verfasserin  |4 aut 
700 1 |a Wilhelm, Micah  |e verfasserin  |4 aut 
700 1 |a Ziemińska, Kasia  |e verfasserin  |4 aut 
700 1 |a Etzold, Sophia  |e verfasserin  |4 aut 
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