The height growth of the trees depends on sufficient mechanical support given by the stem and an effective hydraulic system. On unstable slopes, tree growth is affected by soil pressure from above and potential soil erosion from below the position of tree. The necessary stabilization is then provided by the production of mechanically stronger wood of reduced hydraulic conductivity. Unfortunately, the interaction between tree growth (both radial and axial) and stabilization in the soil is still insufficiently understood. Therefore, in this study, we aimed to quantify the impact of hillslope dynamics on the degree of tree growth and hydraulic limitation, and the potential effect on tree height growth and growth plasticity. To evaluate this effect, we took four cores from 80 individuals of Quercus robur and Fraxinus excelsior and measured tree-ring widths (TRWs) and vessel lumen areas (VLAs). The tree heights were evaluated using a terrestrial laser scanner, and local soil depth was measured by a soil auger. Our data showed a significant limitation of the tree hydraulic system related with the formation of eccentric tree-rings. The stem eccentricity decreased with increasing stem diameter, but at the same time, the negative effect of stem eccentricity on conduit size increased with the increasing stem diameter. Even though this anatomical adaptation associated with the effect of stem eccentricity differed between the tree species (mainly in the different degree of limitations in conduit size), the trees showed an increase in the proportion of hydraulically inactive wood elements and a lowered effectiveness of their hydraulic system. In addition, we observed a larger negative effect of stem eccentricity on VLA in Quercus. We conclude that the stabilization of a tree in unstable soil is accompanied by an inability to create sufficiently effective hydraulic system, resulting in severe height-growth limitation. This affects the accumulation of aboveground biomass and carbon sequestration.

Department of Botany and Zoology Faculty of Science Masaryk University Brno Czechia

Department of Forest Botany Dendrology and Geobiocoenology Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czechia

Department of Forest Ecology The Silva Tarouca Research Institute Brno Czechia

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Aloni R. (2007). “Phytohormonal mechanisms that control wood quality formation in young and mature trees,” in

Anfodillo T., Carraro V., Carrer M., Fior C., Rossi S. (2006). Convergent tapering of xylem conduits in different woody species. PubMed DOI

Anfodillo T., Petit G., Crivellaro A. (2013). Axial conduit widening in woody species: a still neglected anatomical pattern. DOI

Applequist M. B. (1958). A simple pith locator for use with off-center increment cores.

Ballesteros J. A., Stoffel M., Bollschweiler M., Bodoque J. M., Díez-Herrero A. (2010). Flash-flood impacts cause changes in wood anatomy of PubMed DOI

Bartoń K. (2016).

Bontemps J.-D., Hervé J.-C., Dhôte J.-F. (2010). Dominant radial and height growth reveal comparable historical variations for common beech in north-eastern France. DOI

Bräuning A., Ridder M. D., Zafirov N., García-González I., Dimitrov D. P., Gärtner H. (2016). Tree-ring features: indicators of extreme event impacts. DOI

Bunn A. G. (2008). A dendrochronology program library in R (dplR). DOI

Castagneri D., Regev L., Boaretto E., Carrer M. (2017). Xylem anatomical traits reveal different strategies of two Mediterranean oaks to cope with drought and warming. DOI

Chojnacky D. C., Heath L. S., Jenkins J. C. (2014). Updated generalized biomass equations for North American tree species. DOI

Di Iorio A., Lasserre B., Scippa G. S., Chiatante D. (2005). Root system architecture of PubMed DOI PMC

Dietrich L., Hoch G., Kahmen A., Körner C. (2018). Losing half the conductive area hardly impacts the water status of mature trees. PubMed DOI PMC

Domec J.-C., Gärtner B. L. (2003). Relationship between growth rates and xylem hydraulic characteristics in young, mature and old-growth ponderosa pine trees. DOI

Fajardo A., Martínez-Pérez C., Cervantes-Alcayde M. A., Olson M. E. (2020). Stem length, not climate, controls vessel diameter in two trees species across a sharp precipitation gradient. PubMed DOI

Fonti P., Bryukhanova M. V., Myglan V. S., Kirdyanov A. V., Naumova O. V., Vaganov E. A. (2013). Temperature-induced responses of xylem structure of PubMed DOI

Frelich L. E. (2002).

Gärtner B. L., Roy J., Huc R. (2003). Effects of tension wood on specific conductivity and vulnerability to embolism of Quercus ilex seedlings grown at two atmospheric CO2 concentrations. PubMed DOI

Gärtner H., Nievergelt D. (2010). The core-microtome: a new tool for surface preparation on cores and time series analysis of varying cell parameters. DOI

Gärtner H., Schweingruber F. H. (2013).

Gebauer R., Volařík D. (2013). Root hydraulic conductivity and vessel structure modification with increasing soil depth of two oak species: DOI

Grissino-Mayer H. D. (2001). Evaluating crossdating accuracy: a manual and tutorial for the computer program COFECHA.

Gullo M. A. L., Salleo S., Piaceri E. C., Rosso R. (1995). Relations between vulnerability to xylem embolism and xylem conduit dimensions in young trees of DOI

Harker R. I. (1996). Curved tree trunks: indicators of soil creep and other phenomena. DOI

Heinrich I., Gärtner H. (2008). Variations in tension wood of two broad-leaved tree species in response to different mechanical treatments: implications for dendrochronology and mass movement studies. DOI

Heinrich I., Gärtner H., Monbaron M. (2007). Tension wood formed in DOI

Ives A. R., Abbott K. C., Ziebarth N. L. (2010). Analysis of ecological time series with ARMA(p,q) models. PubMed DOI

Jacobsen A. L., Pratt R. B., Tobin M. F., Hacke U. G., Ewers F. W. (2012). A global analysis of xylem vessel length in woody plants. PubMed DOI

Jerin T., Phillips J. (2020). Biogeomorphic keystones and equivalents: examples from a bedrock stream. DOI

Jevšenak J., Džeroski S., Levanič T. (2018a). Predicting the vessel lumen area tree-ring parameter of DOI

Jevšenak J., Džeroski S., Zavadlav S., Levanič T. (2018b). A machine learning approach to analyzing the relationship between temperatures and multi-proxy tree-ring records. DOI

Jones C. G. (2012). Ecosystem engineers and geomorphological signatures in landscapes. DOI

Jourez B., Riboux A., Leclercq A. (2001). Anatomical characteristics of tension wood and opposite wood in young inclined stems of poplar (

Kašpar J., Anfodillo T., Treml V. (2019). Tree size mostly drives the variation of xylem traits at the treeline ecotone. DOI

Kašpar J., Šamonil P., Krůček M., Daněk P. (2020). Changes in the radial growth of trees in relation to biogeomorphic processes in an old-growth forest on flysch, Czechia. DOI

Klesse S., von Arx G., Gossner M. M., Hug C., Rigling A., Queloz V. (2020). Amplifying feedback loop between growth and wood anatomical characteristics of PubMed DOI

Koch G. W., Sillett S. C., Jennings G. M., Davis S. D. (2004). The limits to tree height. PubMed DOI

Koçillari L., Olson M. E., Suweis S., Rocha R. P., Lovison A., Cardin F., et al. (2021). The Widened Pipe Model of plant hydraulic evolution. PubMed DOI PMC

Malik I., Wistuba M., Migoń P., Fajer M. (2016). Activity of slow-moving landslides recorded in eccentric tree rings of Norway spruce trees (

Nakagawa S., Schielzeth H. (2013). A general and simple method for obtaining R2 from generalized linear mixed-effects models. DOI

Olson M. E., Anfodillo T., Gleason S. M., McCulloh K. A. (2021). Tip-to-base xylem conduit widening as an adaptation: causes, consequences, and empirical priorities. PubMed DOI

Olson M. E., Anfodillo T., Rosell J. A., Petit G., Crivellaro A., Isnard S., et al. (2014). Universal hydraulics of the flowering plants: vessel diameter scales with stem length across angiosperm lineages, habits and climates. PubMed DOI

Pallardy S. G. (2008).

Pan Y., Birdsey R. A., Fang J., Houghton R., Kauppi P. E., Kurz W. A., et al. (2011). A large and persistent carbon sink in the world’s forests. PubMed DOI

Pawlik L., Šamonil P. (2018). Soil creep: the driving factors, evidence and significance for biogeomorphic and pedogenic domains and systems – a critical literature review. DOI

Piermattei A., von Arx G., Avanzi C., Fonti P., Gärtner H., Piotti A., et al. (2020). Functional relationships of wood anatomical traits in Norway spruce. PubMed DOI PMC

Pinheiro J., Douglas B., Saikat D., Sarkar D., and R Development Core (2019).

R Core Team (2021).

Roibu C.-C., Sfeclǎ V., Mursa A., Ionita M., Nagavciuc V., Chiriloaei F., et al. (2020). The climatic response of tree ring width components of Ash ( DOI

Rosell J. A., Olson M. E., Anfodillo T. (2017). Scaling of xylem vessel diameter with plant size: causes, predictions, and outstanding questions. DOI

Rossi S., Anfodillo T., Čufar K., Cuny H. E., Deslauriers A., Fonti P., et al. (2016). Pattern of xylem phenology in conifers of cold ecosystems at the Northern Hemisphere. PubMed DOI

Ruelle J. (2014). “Morphology, anatomy and ultrastructure of reaction wood,” in DOI

Ruffinatto F., Crivellaro A. (2019). DOI

Ryan M. G., Phillips N., Bond B. J. (2006). The hydraulic limitation hypothesis revisited. PubMed DOI

Ryan M. G., Yoder B. J. (1997). Hydraulic limits to tree height and tree growth. DOI

Rybníček M., Čermák P., Prokop O., Žid T., Trnka M., Kolář T. (2016). Oak ( DOI

Šamonil P., Daněk P., Senecká A., Adam D., Phillips J. D. (2018). Biomechanical effects of trees in an old-growth temperate forest. DOI

San-Miguel-Ayanz J., de Rigo D., Caudullo G., Durrant T., Mauri A., Tinner W., et al. (2016).

Shouse M., Phillips J. (2016). Soil deepening by trees and the effects of parent material. DOI

Šilhán K. (2015). Can tree tilting indicate mechanisms of slope movement? DOI

Šilhán K. (2017). Dendrogeomorphic chronologies of landslides: dating of true slide movements? DOI

Šilhán K. (2019). Tree-ring eccentricity in the dendrogeomorphic analysis of landslides – a comparative study. DOI

Šilhán K., Stoffel M. (2015). Impacts of age-dependent tree sensitivity and dating approaches on dendrogeomorphic time series of landslides. DOI

Tolasz R., Míková T., Veleriánová A., Voženílek V. (2007).

Trouillier M., van der Maaten-Theunissen M., Scharnweber T., Würth D., Burger A., Schnittler M., et al. (2019). Size matters—a comparison of three methods to assess age- and size-dependent climate sensitivity of trees. DOI

Tumajer J., Burda J., Treml V. (2015). Dating of rockfal events using vessel lumen area in DOI

Tumajer J., Treml V. (2013). Meta-analysis of dendrochronological dating of mass movements. DOI

Tumajer J., Treml V. (2019). Disentangling the effects of disturbance, climate and tree age on xylem hydraulic conductivity of PubMed DOI PMC

Tyree M. T., Zimmermann M. H. (2002). “Hydraulic architecture of whole plants and plant performance,” in DOI

von Arx G., Carrer M. (2014). ROXAS – A new tool to build centuries-long tracheid-lumen chronologies in conifers. DOI

von Arx G., Kueffer C., Fonti P. (2013). Quantifying plasticity in vessel grouping – added value from the image analysis tool ROXAS. DOI

Wilson B. F., Gärtner B. L. (2011). Lean in red alder (Alnusrubra): growth stress, tension wood, and righting response. DOI

Wistuba M., Malik I., Wójcicki K., Michałowicz P. (2015). Coupling between landslides and eroding stream channels reconstructed from spruce tree rings (examples from the Carpathians and Sudetes – Central Europe). DOI