Tree Water Status Affects Tree Branch Position

dc.contributorAalto Universityen
dc.contributor.authorJunttila, Samulien_US
dc.contributor.authorCampos, Marianaen_US
dc.contributor.authorHölttä, Teemuen_US
dc.contributor.authorLindfors, Laurien_US
dc.contributor.authorIssaoui, Aimad Elen_US
dc.contributor.authorVastaranta, Mikkoen_US
dc.contributor.authorHyyppä, Hannuen_US
dc.contributor.authorPuttonen, Eetuen_US
dc.contributor.departmentDepartment of Built Environmenten
dc.contributor.organizationNational Land Survey of Finlanden_US
dc.contributor.organizationUniversity of Helsinkien_US
dc.contributor.organizationUniversity of Eastern Finlanden_US
dc.descriptionFunding Information: Funding: This research was funded by the Finnish Cultural Foundation and the Academy of Finland (under grant numbers 265949/292757, 295047, 330422, 316096/320075). This study has been done with affiliation to the Academy of Finland Flagship Forest-Human-Machine Interplay—Building Resilience, Redefining Value Networks and Enabling Meaningful Experiences (UNITE) [grant number 337127]. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// 4.0/).
dc.description.abstractPhysiological processes cause movements of tree stems and branches that occur in a circadian rhythm and over longer time periods, but there is a lack of quantitative understanding of the cause-and-effect relationships. We investigated the movement of tree branches in a long-term drought experiment and at a circadian time scale using time-series of terrestrial laser scanning measurements coupled with measurements of environmental drivers and tree water status. Our results showed that movement of branches was largely explained by leaf water status measured as leaf water potential in a controlled environment for both measured trees (R2 = 0.86 and R2 = 0.75). Our hypothesis is that changes in leaf and branch water status would cause branch movements was further supported by strong relationship between vapor pressure deficit and overnight branch movement (R2 = [0.57–0.74]). Due to lower atmospheric water demand during the nighttime, tree branches settle down as the amount of water in leaves increases. The results indicate that the quantified movement of tree branches could help us to further monitor and understand the water relations of tree communities.en
dc.description.versionPeer revieweden
dc.identifier.citationJunttila, S, Campos, M, Hölttä, T, Lindfors, L, Issaoui, A E, Vastaranta, M, Hyyppä, H & Puttonen, E 2022, ' Tree Water Status Affects Tree Branch Position ', Forests, vol. 13, no. 5, 728 .
dc.identifier.otherPURE UUID: 98c70c62-306e-4125-bba6-a2f6f30e85a3en_US
dc.identifier.otherPURE ITEMURL:
dc.identifier.otherPURE LINK:
dc.identifier.otherPURE FILEURL:
dc.publisherMDPI AG
dc.relation.ispartofseriesVolume 13, issue 5en
dc.subject.keyworddiurnal branch movementen_US
dc.subject.keyworddiurnal cyclesen_US
dc.subject.keywordleaf water contenten_US
dc.subject.keywordleaf water potentialen_US
dc.subject.keywordrelative water contenten_US
dc.subject.keywordterrestrial laser scanningen_US
dc.subject.keywordtree monitoringen_US
dc.subject.keywordvapour pressure deficit (VPD)en_US
dc.titleTree Water Status Affects Tree Branch Positionen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi