ESTIMATES OF THE CONTRIBUTION OF FOG WATER TO WET ATMOSPHERIC DEPOSITION IN CZECH MOUNTAIN FORESTS BASED ON ITS STABLE HYDROGEN AND OXYGEN ISOTOPE COMPOSITION: PRELIMINARY RESULTS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43902229" target="_blank" >RIV/60076658:12310/20:43902229 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389030:_____/20:00535993 RIV/67985874:_____/20:00535993 RIV/00216208:11310/20:10420760 RIV/00020699:_____/20:N0000046

Výsledek na webu

<a href="https://ejes.cz/index.php/ejes/article/view/611" target="_blank" >https://ejes.cz/index.php/ejes/article/view/611</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14712/23361964.2020.10" target="_blank" >10.14712/23361964.2020.10</a>

Jazyk výsledku

angličtina

Název v původním jazyce

ESTIMATES OF THE CONTRIBUTION OF FOG WATER TO WET ATMOSPHERIC DEPOSITION IN CZECH MOUNTAIN FORESTS BASED ON ITS STABLE HYDROGEN AND OXYGEN ISOTOPE COMPOSITION: PRELIMINARY RESULTS

Popis výsledku v původním jazyce

Stable isotopes are increasingly being used in many scientific fields, including environmental sciences. In this study we measured the variation in the stable hydrogen and oxygen isotope composition of fog water, rain water (in the form of bulk falling precipitation) and throughfall water in the Sumava (the Bohemian Forest), Krkonok (the Giant Mts.) and Jizerske hory (the Jizera Mts.) Mts. in October-November 2017. In total, 46 cumulative two-week samples were collected and analysed. Our results indicate that the overall stable hydrogen and oxygen isotope composition of fog and rain samples differed significantly, fog being isotopically enriched in the heavier isotopes H-2 and O-18 relative to rain. In contrast to our assumption, throughfall water was generally depleted in the heavier isotopes H-2 and O-18 relative to rainwater. Hence, the simple mixing model for most samples yielded an unrealistic percentage outside the reasonable range of 0-10096. For few samples, however, the estimated contribution of fog to throughfall ranged between 3 and 8% based on delta H-2 and 4 and 7% based on delta O-18, which is lower than that estimated for the same mountain regions by other authors using different methods and significantly lower than that reported for mountain ranges in neighbouring countries. Although using stable isotopes is a promising tool for determining the contribution of fog to the hydrological budget when assessing atmospheric deposition, the critical limitations are in the collection, manipulation and storing of the samples.

Název v anglickém jazyce

ESTIMATES OF THE CONTRIBUTION OF FOG WATER TO WET ATMOSPHERIC DEPOSITION IN CZECH MOUNTAIN FORESTS BASED ON ITS STABLE HYDROGEN AND OXYGEN ISOTOPE COMPOSITION: PRELIMINARY RESULTS

Popis výsledku anglicky

Stable isotopes are increasingly being used in many scientific fields, including environmental sciences. In this study we measured the variation in the stable hydrogen and oxygen isotope composition of fog water, rain water (in the form of bulk falling precipitation) and throughfall water in the Sumava (the Bohemian Forest), Krkonok (the Giant Mts.) and Jizerske hory (the Jizera Mts.) Mts. in October-November 2017. In total, 46 cumulative two-week samples were collected and analysed. Our results indicate that the overall stable hydrogen and oxygen isotope composition of fog and rain samples differed significantly, fog being isotopically enriched in the heavier isotopes H-2 and O-18 relative to rain. In contrast to our assumption, throughfall water was generally depleted in the heavier isotopes H-2 and O-18 relative to rainwater. Hence, the simple mixing model for most samples yielded an unrealistic percentage outside the reasonable range of 0-10096. For few samples, however, the estimated contribution of fog to throughfall ranged between 3 and 8% based on delta H-2 and 4 and 7% based on delta O-18, which is lower than that estimated for the same mountain regions by other authors using different methods and significantly lower than that reported for mountain ranges in neighbouring countries. Although using stable isotopes is a promising tool for determining the contribution of fog to the hydrological budget when assessing atmospheric deposition, the critical limitations are in the collection, manipulation and storing of the samples.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

—

OECD FORD obor

10501 - Hydrology

Projekt

<a href="/cs/project/GA20-00788S" target="_blank" >GA20-00788S: Obtížně kvantifikovatelné procesy ovlivňující vodní bilanci lesních povodí pramenných oblastí mírného pásma</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

European Journal of Environmental Sciences

ISSN

1805-0174

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

89-97

Kód UT WoS článku

000599658600003

EID výsledku v databázi Scopus

2-s2.0-85099918901