An enormous amorphous silica stock in boreal wetlands
Abstract: We investigated amorphous Si (ASi) in a boreal wetland in northern Sweden. We found enormous stocks of ASi in the upper soil layers (up to 11% of dry weight), in the form of diatom frustules and plant ASi. A consistent exponential decrease in ASi concentrations was observed with increasing...
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Language: | English |
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2010
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Online Access: | https://hdl.handle.net/10067/842160151162165141 |
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ftunivantwerpen:c:irua:84216 2023-07-16T04:00:09+02:00 An enormous amorphous silica stock in boreal wetlands Struyf, Eric Mörth, Carl-Magnus Humborg, Christoph Conley, Daniel J. 2010 pdf https://hdl.handle.net/10067/842160151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JG001324 info:eu-repo/semantics/altIdentifier/isi/000285009700005 info:eu-repo/semantics/closedAccess 0148-0227 Journal of geophysical research Biology info:eu-repo/semantics/article 2010 ftunivantwerpen https://doi.org/10.1029/2010JG001324 2023-06-26T22:14:39Z Abstract: We investigated amorphous Si (ASi) in a boreal wetland in northern Sweden. We found enormous stocks of ASi in the upper soil layers (up to 11% of dry weight), in the form of diatom frustules and plant ASi. A consistent exponential decrease in ASi concentrations was observed with increasing depth in the soil profile. An inverse modeling approach shows that vegetation takes up a substantial part of weathered dissolved Si (DSi). Concurrent analysis of N and C indicates a faster turnover in and a higher leakage from the ASi pool. The magnitude of the biological buffering we observed is unprecedented and supports the emerging paradigm of the importance of biological uptake of DSi governing the export of DSi from terrestrial ecosystems. Our results complicate current models of silicate transport, highlighting the necessity to incorporate ecosystem biological buffering in our concept of Si biogeochemistry.` Article in Journal/Newspaper Northern Sweden IRUA - Institutional Repository van de Universiteit Antwerpen Journal of Geophysical Research 115 G4 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Struyf, Eric Mörth, Carl-Magnus Humborg, Christoph Conley, Daniel J. An enormous amorphous silica stock in boreal wetlands |
topic_facet |
Biology |
description |
Abstract: We investigated amorphous Si (ASi) in a boreal wetland in northern Sweden. We found enormous stocks of ASi in the upper soil layers (up to 11% of dry weight), in the form of diatom frustules and plant ASi. A consistent exponential decrease in ASi concentrations was observed with increasing depth in the soil profile. An inverse modeling approach shows that vegetation takes up a substantial part of weathered dissolved Si (DSi). Concurrent analysis of N and C indicates a faster turnover in and a higher leakage from the ASi pool. The magnitude of the biological buffering we observed is unprecedented and supports the emerging paradigm of the importance of biological uptake of DSi governing the export of DSi from terrestrial ecosystems. Our results complicate current models of silicate transport, highlighting the necessity to incorporate ecosystem biological buffering in our concept of Si biogeochemistry.` |
format |
Article in Journal/Newspaper |
author |
Struyf, Eric Mörth, Carl-Magnus Humborg, Christoph Conley, Daniel J. |
author_facet |
Struyf, Eric Mörth, Carl-Magnus Humborg, Christoph Conley, Daniel J. |
author_sort |
Struyf, Eric |
title |
An enormous amorphous silica stock in boreal wetlands |
title_short |
An enormous amorphous silica stock in boreal wetlands |
title_full |
An enormous amorphous silica stock in boreal wetlands |
title_fullStr |
An enormous amorphous silica stock in boreal wetlands |
title_full_unstemmed |
An enormous amorphous silica stock in boreal wetlands |
title_sort |
enormous amorphous silica stock in boreal wetlands |
publishDate |
2010 |
url |
https://hdl.handle.net/10067/842160151162165141 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
0148-0227 Journal of geophysical research |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JG001324 info:eu-repo/semantics/altIdentifier/isi/000285009700005 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1029/2010JG001324 |
container_title |
Journal of Geophysical Research |
container_volume |
115 |
container_issue |
G4 |
_version_ |
1771548699138195456 |