Long-term rise in riverine dissolved organic carbon concentration is predicted by electrolyte solubility theory

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F23%3A00571949" target="_blank" >RIV/86652079:_____/23:00571949 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/23:10168473

Výsledek na webu

<a href="https://www.science.org/doi/10.1126/sciadv.ade3491" target="_blank" >https://www.science.org/doi/10.1126/sciadv.ade3491</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1126/sciadvade3491" target="_blank" >10.1126/sciadvade3491</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long-term rise in riverine dissolved organic carbon concentration is predicted by electrolyte solubility theory

Popis výsledku v původním jazyce

The riverine dissolved organic carbon (DOC) flux is of similar magnitude to the terrestrial sink for atmospheric CO2 , but the factors controlling it remain poorly determined and are largely absent from Earth system models (ESMs). Here, we show, for a range of European headwater catchments, that electrolyte solubility theory explains how declining precipitation ionic strength (IS) has increased the dissolution of thermally moderated pools of soluble soil organic matter (OM), while hydrological conditions govern the proportion of this OM entering the aquatic system. Solubility will continue to rise exponentially with declining IS until pollutant ion deposition fully flattens out under clean air policies. Future DOC export will increasingly depend on rates of warming and any directional changes to the intensity and seasonality of precipitation and marine ion deposition. Our findings provide a firm foundation for incorporating the processes dominating change in this component of the global carbon cycle in ESMs.

Název v anglickém jazyce

Long-term rise in riverine dissolved organic carbon concentration is predicted by electrolyte solubility theory

Popis výsledku anglicky

The riverine dissolved organic carbon (DOC) flux is of similar magnitude to the terrestrial sink for atmospheric CO2 , but the factors controlling it remain poorly determined and are largely absent from Earth system models (ESMs). Here, we show, for a range of European headwater catchments, that electrolyte solubility theory explains how declining precipitation ionic strength (IS) has increased the dissolution of thermally moderated pools of soluble soil organic matter (OM), while hydrological conditions govern the proportion of this OM entering the aquatic system. Solubility will continue to rise exponentially with declining IS until pollutant ion deposition fully flattens out under clean air policies. Future DOC export will increasingly depend on rates of warming and any directional changes to the intensity and seasonality of precipitation and marine ion deposition. Our findings provide a firm foundation for incorporating the processes dominating change in this component of the global carbon cycle in ESMs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/GC21-22810J" target="_blank" >GC21-22810J: Vztah mezi chemickým složením rozpuštěné organické hmoty a cyklem živin v lesních povodích mírného pásma</a><br>

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

Science Advances

ISSN

2375-2548

e-ISSN

2375-2548

Svazek periodika

9

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

eade3491

Kód UT WoS článku

000964550100020

EID výsledku v databázi Scopus

2-s2.0-85146485825