Limitation by vapour pressure deficit shapes different intra-annual growth patterns of diffuse- and ring-porous temperate broadleaves

© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1984. - 233(2022), 6 vom: 15. März, Seite 2429-2441
1. Verfasser: Tumajer, Jan (VerfasserIn)
Weitere Verfasser: Scharnweber, Tobias, Smiljanic, Marko, Wilmking, Martin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't broadleaves climate change dendrometer growth dynamics temperate forest vapour pressure deficit
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520 |a Understanding the effects of temperature and moisture on radial growth is vital for assessing the impacts of climate change on carbon and water cycles. However, studies observing growth at sub-daily temporal scales remain scarce. We analysed sub-daily growth dynamics and its climatic drivers recorded by point dendrometers for 35 trees of three temperate broadleaved species during the years 2015-2020. We isolated irreversible growth driven by cambial activity from the dendrometer records. Next, we compared the intra-annual growth patterns among species and delimited their climatic optima. The growth of all species peaked at air temperatures between 12 and 16°C and vapour pressure deficit (VPD) below 0.1 kPa. Acer pseudoplatanus and Fagus sylvatica, both diffuse-porous, sustained growth under suboptimal VPD. Ring-porous Quercus robur experienced a steep decline of growth rates with reduced air humidity. This resulted in multiple irregular growth peaks of Q. robur during the year. By contrast, the growth patterns of the diffuse-porous species were always right-skewed unimodal with a peak in June between day of the year 150-170. Intra-annual growth patterns are shaped more by VPD than temperature. The different sensitivity of radial growth to VPD is responsible for unimodal growth patterns in both diffuse-porous species and multimodal growth pattern in Q. robur 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a broadleaves 
650 4 |a climate change 
650 4 |a dendrometer 
650 4 |a growth dynamics 
650 4 |a temperate forest 
650 4 |a vapour pressure deficit 
700 1 |a Scharnweber, Tobias  |e verfasserin  |4 aut 
700 1 |a Smiljanic, Marko  |e verfasserin  |4 aut 
700 1 |a Wilmking, Martin  |e verfasserin  |4 aut 
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