Insight into Canary Island pine physiology provided by stable isotope patterns of water and plant tissues along an altitudinal gradient
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F21%3A00547820" target="_blank" >RIV/67985939:_____/21:00547820 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0323990" target="_blank" >http://hdl.handle.net/11104/0323990</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/treephys/tpab046" target="_blank" >10.1093/treephys/tpab046</a>
Alternative languages
Result language
angličtina
Original language name
Insight into Canary Island pine physiology provided by stable isotope patterns of water and plant tissues along an altitudinal gradient
Original language description
We found a decreasing δ18 Oxygen trend in source water that was overridden by an increasing δ18 Oxygen trend in needle water, leaf assimilates and tree-ring cellulose with increasing altitude, suggesting site-specific tree physiological responses to relative humidity. Fog-influenced and fog-free sites showed similar δ13 Carbon values, suggesting photosynthetic activity to be limited by stomatal closure and irradiance at certain periods. In addition, we observed an 18 Oxygen-depletion (fog-free and timberline sites) and 13 Carbon-depletion (fog-influenced and fog-free sites) in latewood compared with earlywood caused by seasonal differences in: (i) water uptake (i.e., deeper ground water during summer drought, fog water frequency and interception) and (ii) meteorological conditions (stem radial growth and latewood δ18 Oxygen correlated with winter precipitation). In addition, we found evidence for foliar water uptake and strong isotopic gradients along the pine needle axis in water and assimilates. These gradients are likely the reason for an unexpected underestimation of pine needle water δ18 Oxygen when applying standard leaf water δ18 Oxygen models. Our results indicate that soil water availability and air humidity conditions are the main drivers of the physiological behavior of pine along the Canary Island’s altitudinal gradients.
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
10618 - Ecology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
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
Tree Physiology
ISSN
0829-318X
e-ISSN
1758-4469
Volume of the periodical
41
Issue of the periodical within the volume
9
Country of publishing house
GB - UNITED KINGDOM
Number of pages
16
Pages from-to
1611-1626
UT code for WoS article
000710990200005
EID of the result in the Scopus database
2-s2.0-85116957998