Ozone flux and ozone deposition in a mountain spruce forest are modulated by sky conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F19%3A00503923" target="_blank" >RIV/86652079:_____/19:00503923 - isvavai.cz</a>

Result on the web

<a href="https://reader.elsevier.com/reader/sd/pii/S0048969719315074?token=E81FF4357345D487E3A4F1B68F9C33BEC7AF9B5C5F3D64BEC3D0C873ED8C41BBA777003F9598376D88AB376E6AAB526B" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0048969719315074?token=E81FF4357345D487E3A4F1B68F9C33BEC7AF9B5C5F3D64BEC3D0C873ED8C41BBA777003F9598376D88AB376E6AAB526B</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2019.03.491" target="_blank" >10.1016/j.scitotenv.2019.03.491</a>

Result language

angličtina

Original language name

Ozone flux and ozone deposition in a mountain spruce forest are modulated by sky conditions

Original language description

In order to understand the main driving factors of ozone (O3) deposition we tested the hypothesis that sky conditions (cloudy, partly cloudy, and clear sky) modulate O3 flux in forest ecosystems via stomatal regulation. The hypothesis is based on the fact that complex microclimate conditions under cloudy sky usually stimulate stomatal conductance.nO3 fluxes were inferred from a concentration gradient in a mountainous Norway spruce forest in the Czech Republic (Central Europe) for years 2012–2016 and measured directly by eddy-covariance during the summer of 2017. Daily and seasonal O3 depositions were calculated separately for days with cloudy, partly cloudy, and clear sky conditions.nThe data show unequivocally that more O3 is taken up under cloudy and partially cloudy skies. Moreover, we found significant interactive effects of sky conditions and season on O3 flux. Though there are other mechanisms and pathways involved in the transport of O3 to the plant-soil system, the highest O3 deposition was associated to the highest stomatal conductance during partly cloudy and cloudy sky conditions in all seasons, while lower O3 ecosystem fluxes were observed under clear sky conditions despite the highest O3 concentrations at this time. These findings suggest that forests growing at sites where conditions are predominantly cloudy are expected to deposit higher extent of O3 than less-cloudy forests being thus more threatened by phytotoxic O3.

Czech name

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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

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

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)

Publication year

2019

Confidentiality

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

Name of the periodical

Science of the Total Environment

ISSN

0048-9697

e-ISSN

—

Volume of the periodical

672

Issue of the periodical within the volume

jul

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

296-304

UT code for WoS article

000466979400030

EID of the result in the Scopus database

2-s2.0-85063760883