Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00553268" target="_blank" >RIV/60077344:_____/21:00553268 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/21:00553268 RIV/00025798:_____/21:00000120

Výsledek na webu

<a href="https://doi.org/10.1088/1748-9326/ac2526" target="_blank" >https://doi.org/10.1088/1748-9326/ac2526</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-9326/ac2526" target="_blank" >10.1088/1748-9326/ac2526</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters.

Popis výsledku v původním jazyce

Surface water browning, the result of increasing concentrations of dissolved organic matter (DOM), has been widespread in northern ecosystems in recent decades. Here, we assess a database of 426 undisturbed headwater lakes and streams in Europe and North America for evidence of trends in DOM between 1990 and 2016. We describe contrasting changes in DOM trends in Europe (decelerating) and North America (accelerating), which are consistent with organic matter solubility responses to declines in sulfate deposition. While earlier trends (1990-2004) were almost entirely related to changes in atmospheric chemistry, climatic and chemical drivers were equally important in explaining recent DOM trends (2002-2016). We estimate that riverine DOM export from northern ecosystems increased by 27% during the study period. Increased summer precipitation strengthened upward dissolved organic carbon trends while warming apparently damped browning. Our results suggest strong but changing influences of air quality and climate on the terrestrial carbon cycle, and on the magnitude of carbon export from land to water.

Název v anglickém jazyce

Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters.

Popis výsledku anglicky

Surface water browning, the result of increasing concentrations of dissolved organic matter (DOM), has been widespread in northern ecosystems in recent decades. Here, we assess a database of 426 undisturbed headwater lakes and streams in Europe and North America for evidence of trends in DOM between 1990 and 2016. We describe contrasting changes in DOM trends in Europe (decelerating) and North America (accelerating), which are consistent with organic matter solubility responses to declines in sulfate deposition. While earlier trends (1990-2004) were almost entirely related to changes in atmospheric chemistry, climatic and chemical drivers were equally important in explaining recent DOM trends (2002-2016). We estimate that riverine DOM export from northern ecosystems increased by 27% during the study period. Increased summer precipitation strengthened upward dissolved organic carbon trends while warming apparently damped browning. Our results suggest strong but changing influences of air quality and climate on the terrestrial carbon cycle, and on the magnitude of carbon export from land to water.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10503 - Water resources

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Environmental Research Letters

ISSN

1748-9326

e-ISSN

1748-9326

Svazek periodika

16

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

104009

Kód UT WoS článku

000697659000001

EID výsledku v databázi Scopus

2-s2.0-85116421291