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Landscape cultivation alters delta Si-30 signature in terrestrial ecosystems

Vandevenne, Floor I.; Delvaux, Claire; Hughes, Harold J.; Andre, Luc; Ronchi, Benedicta; Clymans, Wim LU ; Barao, Lucia; Govers, Gerard; Meire, Patrick and Struyf, Eric (2015) In Scientific Reports 5.
Abstract
Despite increasing recognition of the relevance of biological cycling for Si cycling in ecosystems and for Si export from soils to fluvial systems, effects of human cultivation on the Si cycle are still relatively understudied. Here we examined stable Si isotope (delta Si-30) signatures in soil water samples across a temperate land use gradient. We show that - independent of geological and climatological variation - there is a depletion in light isotopes in soil water of intensive croplands and managed grasslands relative to native forests. Furthermore, our data suggest a divergence in delta Si-30 signatures along the land use change gradient, highlighting the imprint of vegetation cover, human cultivation and intensity of disturbance on... (More)
Despite increasing recognition of the relevance of biological cycling for Si cycling in ecosystems and for Si export from soils to fluvial systems, effects of human cultivation on the Si cycle are still relatively understudied. Here we examined stable Si isotope (delta Si-30) signatures in soil water samples across a temperate land use gradient. We show that - independent of geological and climatological variation - there is a depletion in light isotopes in soil water of intensive croplands and managed grasslands relative to native forests. Furthermore, our data suggest a divergence in delta Si-30 signatures along the land use change gradient, highlighting the imprint of vegetation cover, human cultivation and intensity of disturbance on delta Si-30 patterns, on top of more conventionally acknowledged drivers (i.e. mineralogy and climate). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Scientific Reports
volume
5
publisher
Nature Publishing Group
external identifiers
  • wos:000347832200001
  • pmid:25583031
  • scopus:84922633730
ISSN
2045-2322
DOI
10.1038/srep07732
language
English
LU publication?
yes
id
519aab3a-3fad-421b-b6f9-07337cc58acc (old id 5069155)
date added to LUP
2015-02-25 14:05:09
date last changed
2017-07-23 04:27:13
@article{519aab3a-3fad-421b-b6f9-07337cc58acc,
  abstract     = {Despite increasing recognition of the relevance of biological cycling for Si cycling in ecosystems and for Si export from soils to fluvial systems, effects of human cultivation on the Si cycle are still relatively understudied. Here we examined stable Si isotope (delta Si-30) signatures in soil water samples across a temperate land use gradient. We show that - independent of geological and climatological variation - there is a depletion in light isotopes in soil water of intensive croplands and managed grasslands relative to native forests. Furthermore, our data suggest a divergence in delta Si-30 signatures along the land use change gradient, highlighting the imprint of vegetation cover, human cultivation and intensity of disturbance on delta Si-30 patterns, on top of more conventionally acknowledged drivers (i.e. mineralogy and climate).},
  articleno    = {7732},
  author       = {Vandevenne, Floor I. and Delvaux, Claire and Hughes, Harold J. and Andre, Luc and Ronchi, Benedicta and Clymans, Wim and Barao, Lucia and Govers, Gerard and Meire, Patrick and Struyf, Eric},
  issn         = {2045-2322},
  language     = {eng},
  publisher    = {Nature Publishing Group},
  series       = {Scientific Reports},
  title        = {Landscape cultivation alters delta Si-30 signature in terrestrial ecosystems},
  url          = {http://dx.doi.org/10.1038/srep07732},
  volume       = {5},
  year         = {2015},
}