SwePub
Sök i LIBRIS databas

  Utökad sökning

L773:2169 8953
 

Sökning: L773:2169 8953 > (2020-2024) > Selective Adsorptio...

Selective Adsorption of Terrestrial Dissolved Organic Matter to Inorganic Surfaces Along a Boreal Inland Water Continuum

Groeneveld, Marloes M. (författare)
Uppsala universitet,Limnologi
Catalan, Nuria (författare)
Catalan Inst Water Res KCRA, Girona, Spain.
Attermeyer, Katrin (författare)
Uppsala universitet,Limnologi,WasserCluster Lunz GmbH, Lunz Am See, Austria.
visa fler...
Hawkes, Jeffrey A. (författare)
Uppsala universitet,Analytisk kemi
Einarsdóttir, Karólina (författare)
Uppsala universitet,Limnologi
Kothawala, Dolly (författare)
Uppsala universitet,Limnologi
Bergquist, Jonas (författare)
Uppsala universitet,Analytisk kemi
Tranvik, Lars (författare)
Uppsala universitet,Limnologi
visa färre...
 (creator_code:org_t)
2020
2020
Engelska.
Ingår i: Journal of Geophysical Research - Biogeosciences. - 2169-8953 .- 2169-8961. ; 125:3
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Different processes contribute to the loss or transformation of dissolved organic matter (DOM) and change DOM concentration and composition systematically along the inland water continuum. Substantial efforts have been made to estimate the importance of microbial and photochemical degradation for DOM concentration and composition and, to some extent, also DOM losses by flocculation, whereas the significance of DOM adsorption to inorganic surfaces has received less attention. Hence, knowledge on the possible extent of adsorption, its effect on DOM loads and composition and on where along the aquatic continuum it might be important, is currently limited or lacking altogether. Here we experimentally determine DOM adsorption onto mineral particles in freshwater ecosystems covering a water residence time gradient in boreal landscape Sweden. We hypothesized that adsorption would gradually decrease with increasing water residence time but actually found that DOM is highly susceptible to adsorption throughout the aquatic continuum. Mass spectrometry and fluorescence analysis on DOM suggest that freshly produced aquatic DOM is less susceptible to adsorption than more terrestrial material. Moreover, the percentage DOM adsorbed in the experiments greatly exceeds the actual adsorption taking place in boreal inland waters across all studied systems. These results illustrate the potential impact of mineral erosion, for example, as a result of agriculture, mining or forestry practices, on the availability, transport, and composition of organic carbon in inland waters.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Miljöbioteknik -- Vattenbehandling (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Environmental Biotechnology -- Water Treatment (hsv//eng)
NATURVETENSKAP  -- Biologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences (hsv//eng)

Nyckelord

DOM
adsorption
water residence time
boreal
aquatic continuum

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy