Environmental role of snowmelt in headwaters affected by atmospheric acid deposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00583787" target="_blank" >RIV/60077344:_____/23:00583787 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/23:00366894

Výsledek na webu

<a href="https://doi.org/10.3390/w15132458" target="_blank" >https://doi.org/10.3390/w15132458</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/w15132458" target="_blank" >10.3390/w15132458</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Environmental role of snowmelt in headwaters affected by atmospheric acid deposition

Popis výsledku v původním jazyce

In headwaters, snowmelt affects the replenishment of water resources as well as the occurrence of natural hazards. The environmental impacts of snowpack were analysed in a small forest catchment (Jizera Mountains, Czech Republic) in the context of forest dynamics, atmospheric deposition, and climate, 1982-2021. Snowmelt dominates in March-May with 41% of the long-term annual water yield., however, there is also seasonal acidification of stream water. Forest clear-cutting together with air pollution control has contributed to a decrease in the acid atmospheric load, but, in the spring, streams' pH is often below the environmental threshold of 5.3. Snowmelt volumes did not show significant transformation with forest canopy and do not affect summer low flows. Peak flows in the springtime do not exceed summer flash floods (frequencies up to 0.13 against 0.02). Mean annual air temperature is increasing by 0.26 C per decade with more intensive warming (0.64 C per decade) in the winter season. The seasonal reduction in snowpack duration and maximum snow water equivalent (5.5 days and 34 mm per decade) corresponds with the largest drop in snow cover duration reported in zones of seasonal temperatures ranging from -5 C to +5 C.

Název v anglickém jazyce

Environmental role of snowmelt in headwaters affected by atmospheric acid deposition

Popis výsledku anglicky

In headwaters, snowmelt affects the replenishment of water resources as well as the occurrence of natural hazards. The environmental impacts of snowpack were analysed in a small forest catchment (Jizera Mountains, Czech Republic) in the context of forest dynamics, atmospheric deposition, and climate, 1982-2021. Snowmelt dominates in March-May with 41% of the long-term annual water yield., however, there is also seasonal acidification of stream water. Forest clear-cutting together with air pollution control has contributed to a decrease in the acid atmospheric load, but, in the spring, streams' pH is often below the environmental threshold of 5.3. Snowmelt volumes did not show significant transformation with forest canopy and do not affect summer low flows. Peak flows in the springtime do not exceed summer flash floods (frequencies up to 0.13 against 0.02). Mean annual air temperature is increasing by 0.26 C per decade with more intensive warming (0.64 C per decade) in the winter season. The seasonal reduction in snowpack duration and maximum snow water equivalent (5.5 days and 34 mm per decade) corresponds with the largest drop in snow cover duration reported in zones of seasonal temperatures ranging from -5 C to +5 C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10501 - Hydrology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Water

ISSN

2073-4441

e-ISSN

2073-4441

Svazek periodika

15

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

22

Strana od-do

2458

Kód UT WoS článku

001028578600001

EID výsledku v databázi Scopus

2-s2.0-85164921721