Hillslope Processes Affect Vessel Lumen Area and Tree Dimensions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027073%3A_____%2F21%3AN0000010" target="_blank" >RIV/00027073:_____/21:N0000010 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43410/21:43920878 RIV/00216224:14310/21:00124373
Result on the web
<a href="https://www.frontiersin.org/articles/10.3389/fpls.2021.778802/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fpls.2021.778802/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fpls.2021.778802" target="_blank" >10.3389/fpls.2021.778802</a>
Alternative languages
Result language
angličtina
Original language name
Hillslope Processes Affect Vessel Lumen Area and Tree Dimensions
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40102 - Forestry
Result continuities
Project
<a href="/en/project/GA19-09427S" target="_blank" >GA19-09427S: The mystery of biogenic soil creep: the biogeomorphic role of trees in temperate and tropical forests and its ecological consequences</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in Plant Science
ISSN
1664-462X
e-ISSN
—
Volume of the periodical
12
Issue of the periodical within the volume
December 2021
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
778802
UT code for WoS article
000761072600001
EID of the result in the Scopus database
2-s2.0-85121399820