uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
A carbon budget of a small humic lake: An example of the importance of lakes for organic matter cycling in boreal catchments
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. (Limnology)
Show others and affiliations
2006 (English)In: Ambio, ISSN 0044-7447, Vol. 35, no 8, 469-475 p.Article in journal (Refereed) Published
Abstract [en]

Lakes play an important role in the cycling of organic matter in the boreal landscape, due to the frequently high extent of bacterial respiration and the efficient burial of organic carbon in sediments. Based on a mass balance approach, we calculated a carbon budget for a small humic Swedish lake in the vicinity of a potential final repository for radioactive waste in Sweden, in order to assess its potential impact on the environmental fate of radionuclides associated with organic matter. We found that the lake is a net heterotrophic ecosystem, subsidized by organic carbon inputs from the catchment and from emergent macrophyte production. The largest sink of organic carbon is respiration by aquatic bacteria and subsequent emission of carbon dioxide to the atmosphere. Although the annual burial of organic carbon in the sediment is a comparatively small sink, it results in the build-up of the largest carbon pool in the lake. Hence, lakes may simultaneously disperse and accumulate organic-associated radionuclides leaking from a final repository.

Place, publisher, year, edition, pages
2006. Vol. 35, no 8, 469-475 p.
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-23080DOI: 10.1579/0044-7447(2006)35[469:ACBOAS]2.0.CO;2ISI: 000243606600006PubMedID: 17334054OAI: oai:DiVA.org:uu-23080DiVA: diva2:50853
Available from: 2008-01-28 Created: 2008-01-28 Last updated: 2012-12-05

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Sobek, SebastianBrunberg, Anna-Kristina
By organisation
In the same journal
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 201 hits
ReferencesLink to record
Permanent link

Direct link