Ecohydrological behaviour of mountain beech forest: Quantification of stomatal conductance using sap flow measurements.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F19%3A00506054" target="_blank" >RIV/67985874:_____/19:00506054 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/19:10398716

Result on the web

<a href="http://hdl.handle.net/11104/0297691" target="_blank" >http://hdl.handle.net/11104/0297691</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/geosciences9050243" target="_blank" >10.3390/geosciences9050243</a>

Result language

angličtina

Original language name

Ecohydrological behaviour of mountain beech forest: Quantification of stomatal conductance using sap flow measurements.

Original language description

In forested regions, transpiration as a main component of evaporation fluxes is important for evaporation partitioning. Physiological behaviours among various vegetation species are quite different. Thus, an accurate estimation of the transpiration rate from a certain tree species needs specific parameterization of stomatal response to multiple environmental conditions. In this study, we chose a 300-m2 beech forest plot located in Vydra basin, the Czech Republic, to investigate the transpiration of beech (Fagus sylvatica) from the middle of the vegetative period to the beginning of the deciduous period, covering 100 days. The sap flow equipment was installed in six trees with varying ages among 32 trees in the plot, and the measurements were used to infer the stomatal conductance. The diurnal pattern of stomatal conductance and the response of stomatal conductance under the multiple environmental conditions were analysed. The results show that the stomatal conductance inferred from sap flow reached the highest at midday but, on some days, there was a significant drop at midday, which might be attributed to the limits of the hydraulic potential of leaves (trees). The response of stomatal conductance showed no pattern with solar radiation and soil moisture, but it did show a clear correlation with the vapour deficit, in particular when explaining the midday drop. The relation to temperature was rather scattered as the measured period was in the moderate climate. The findings highlighted that the parametrization of stress functions based on the typical deciduous forest does not perfectly represent the measured stomatal response of beech. Therefore, measurements of sap flow can assist in better understanding transpiration in newly formed beech stands after bark beetle outbreaks in Central Europe.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10501 - Hydrology

Project

<a href="/en/project/GA19-05011S" target="_blank" >GA19-05011S: Spatial and temporal dynamics of hydrometeorological extremes in montane areas</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geosciences

ISSN

2076-3263

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

243

UT code for WoS article

000470966100052

EID of the result in the Scopus database

2-s2.0-85067613817