Tree dieback and subsequent changes in water quality accelerated the climate-related warming of a central European forest lake

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00605718" target="_blank" >RIV/60077344:_____/24:00605718 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/24:43908033

Výsledek na webu

<a href="https://doi.org/10.2166/wcc.2023.581" target="_blank" >https://doi.org/10.2166/wcc.2023.581</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2166/wcc.2023.581" target="_blank" >10.2166/wcc.2023.581</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tree dieback and subsequent changes in water quality accelerated the climate-related warming of a central European forest lake

Popis výsledku v původním jazyce

The water temperature of many lakes has recently risen as a result of climate change. We evaluated trends in the cloudiness, solar radiation, wind, air and water temperatures, ice cover, thermocline depth, transparency, and composition of two Bohemian Forest lakes (Czech Republic) from 1998 to 2022. Lake water temperatures increased by 0.32-0.47 degrees C decade(-1), and the ice cover periods decreased by 11.7-14.8 days decade(-1). These changes were mostly associated with increasing air temperatures during most months and increasing solar radiation (due to decreasing cloudiness) especially in March and November (the months preceding ice-on/off). Decreasing snow cover in winter (by 3.8 cm decade(-1)) further accelerated the earlier ice melt. The number of days with water temperature >= 4 degrees C increased similarly in both lakes by 12-13 days decade(-1). However, the number of days with water temperature >= 20 degrees C increased and the depth of the summer thermocline decreased more in the lake with tree dieback in its catchment. Tree dieback accelerated the leaching of organic carbon and phosphorus, increasing water brownification, algal production, and decreasing water transparency. Solar radiation was absorbed in shallower water layers. Changes in catchment forest thus contributed to the variability in the response of lake water temperatures to climate change.

Název v anglickém jazyce

Tree dieback and subsequent changes in water quality accelerated the climate-related warming of a central European forest lake

Popis výsledku anglicky

The water temperature of many lakes has recently risen as a result of climate change. We evaluated trends in the cloudiness, solar radiation, wind, air and water temperatures, ice cover, thermocline depth, transparency, and composition of two Bohemian Forest lakes (Czech Republic) from 1998 to 2022. Lake water temperatures increased by 0.32-0.47 degrees C decade(-1), and the ice cover periods decreased by 11.7-14.8 days decade(-1). These changes were mostly associated with increasing air temperatures during most months and increasing solar radiation (due to decreasing cloudiness) especially in March and November (the months preceding ice-on/off). Decreasing snow cover in winter (by 3.8 cm decade(-1)) further accelerated the earlier ice melt. The number of days with water temperature >= 4 degrees C increased similarly in both lakes by 12-13 days decade(-1). However, the number of days with water temperature >= 20 degrees C increased and the depth of the summer thermocline decreased more in the lake with tree dieback in its catchment. Tree dieback accelerated the leaching of organic carbon and phosphorus, increasing water brownification, algal production, and decreasing water transparency. Solar radiation was absorbed in shallower water layers. Changes in catchment forest thus contributed to the variability in the response of lake water temperatures to climate change.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

<a href="/cs/project/GA22-05421S" target="_blank" >GA22-05421S: Vliv dostupnosti dusíku a stavu lesa na půdní mikrobiom, cykly prvků a biologické zotavování acidifikovaných vod v horkých ekosystémech.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Water and Climate Change

ISSN

2040-2244

e-ISSN

2408-9354

Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

127-138

Kód UT WoS článku

001125349800001

EID výsledku v databázi Scopus

2-s2.0-85184665884