Methane dynamics in a large river: a case study of the Elbe River

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00504975" target="_blank" >RIV/60077344:_____/19:00504975 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/19:43899175 RIV/61989592:15310/19:73599127

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs00027-018-0609-9" target="_blank" >https://link.springer.com/article/10.1007%2Fs00027-018-0609-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00027-018-0609-9" target="_blank" >10.1007/s00027-018-0609-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Methane dynamics in a large river: a case study of the Elbe River

Popis výsledku v původním jazyce

We conducted multiple small (2011-2012) and one large sampling campaign (2013) at selected profiles along the Elbe River. With the data we were able to outline spatial and temporal variability of methane concentration, oxidation and emissions in one of the major rivers of Central Europe. The highest methane concentrations were found in human-altered riverine habitats, i.e., in a harbor (1,888nmolL(-1)), in a lock and weirs (1409 +/- 1545nmol L-1), and in general in the whole impounded river segment (383 +/- 215nmol L-1). On the other hand, the lowest methane concentrations were found in the lowland river segment (86 +/- 56nmol L-1). The methane oxidation rate was more efficient in the natural segment (71 +/- 113nmol L(-1)day(-1), which means a turnover time of 49 +/- 83day(-1)) than in the lowland segment (4 +/- 3nmolL(-1)day(-1), which means a turnover time of 39 +/- 45day(-1)). Methane emissions from the surface water into the atmosphere ranged from 0.4 to 11.9mg m(-2) day(-1) (mean 2.1 +/- 0.6mg m(-2) day(-1)) with the highest CH4 emissions at the Meissen harbor (94kg CH4 year(-1)). Such human-altered riverine habitats (i.e., harbors and similar) have not been taken into consideration in the CH4 budget before, despite them being part of the river ecosystems, they may be significant CH4 hot-spots. The total CH4 diffusive flux from the whole Elbe was estimated to be approximately 97 t CH4 year(-1).

Název v anglickém jazyce

Methane dynamics in a large river: a case study of the Elbe River

Popis výsledku anglicky

We conducted multiple small (2011-2012) and one large sampling campaign (2013) at selected profiles along the Elbe River. With the data we were able to outline spatial and temporal variability of methane concentration, oxidation and emissions in one of the major rivers of Central Europe. The highest methane concentrations were found in human-altered riverine habitats, i.e., in a harbor (1,888nmolL(-1)), in a lock and weirs (1409 +/- 1545nmol L-1), and in general in the whole impounded river segment (383 +/- 215nmol L-1). On the other hand, the lowest methane concentrations were found in the lowland river segment (86 +/- 56nmol L-1). The methane oxidation rate was more efficient in the natural segment (71 +/- 113nmol L(-1)day(-1), which means a turnover time of 49 +/- 83day(-1)) than in the lowland segment (4 +/- 3nmolL(-1)day(-1), which means a turnover time of 39 +/- 45day(-1)). Methane emissions from the surface water into the atmosphere ranged from 0.4 to 11.9mg m(-2) day(-1) (mean 2.1 +/- 0.6mg m(-2) day(-1)) with the highest CH4 emissions at the Meissen harbor (94kg CH4 year(-1)). Such human-altered riverine habitats (i.e., harbors and similar) have not been taken into consideration in the CH4 budget before, despite them being part of the river ecosystems, they may be significant CH4 hot-spots. The total CH4 diffusive flux from the whole Elbe was estimated to be approximately 97 t CH4 year(-1).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Aquatic Sciences

ISSN

1015-1621

e-ISSN

—

Svazek periodika

81

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

12

Kód UT WoS článku

000453680100001

EID výsledku v databázi Scopus

2-s2.0-85058817028