Silicon increases the phosphorus availability of Arctic soils
Phosphorus availability in soils is an important parameter influencing primary production in terrestrial ecosystems. Phosphorus limitation exists in many soils since a high proportion of soil phosphorus is stored in unavailable forms for plants, such as bound to iron minerals or stabilized organic m...
Main Authors: | , , , , , , , , |
---|---|
Format: | Text |
Language: | English |
Published: |
University of Bayreuth
2019
|
Subjects: | |
Online Access: | https://dx.doi.org/10.15495/epub_ubt_00004621 https://epub.uni-bayreuth.de/id/eprint/4621 |
id |
ftdatacite:10.15495/epub_ubt_00004621 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.15495/epub_ubt_00004621 2023-05-15T14:57:09+02:00 Silicon increases the phosphorus availability of Arctic soils Schaller, Jörg Faucherre, Samuel Joss, Hanna Obst, Martin Goeckede, Mathias Planer-Friedrich, Britta Peiffer, Stefan Gilfedder, Ben Elberling, Bo 2019 application/pdf https://dx.doi.org/10.15495/epub_ubt_00004621 https://epub.uni-bayreuth.de/id/eprint/4621 en eng University of Bayreuth Creative Commons BY 4.0: Namensnennung http://creativecommons.org/licenses/by/4.0 CC-BY Text Article article-journal ScholarlyArticle 2019 ftdatacite https://doi.org/10.15495/epub_ubt_00004621 2021-11-05T12:55:41Z Phosphorus availability in soils is an important parameter influencing primary production in terrestrial ecosystems. Phosphorus limitation exists in many soils since a high proportion of soil phosphorus is stored in unavailable forms for plants, such as bound to iron minerals or stabilized organic matter. This is in spite of soils having a high amount of total soil phosphorus. The feasibility of silicon to mobilize phosphorus from strong binding sites of iron minerals has been shown for marine sediments but is less well studied in soils. Here we tested the effect of silicon on phosphorus mobilization for 143 Artic soils (representing contrasting soil characteristics), which have not been affected by agriculture or other anthropogenic management practices. In agreement with marine studies, silicon availabilities were significantly positive correlated to phosphorus mobilization in these soils. Laboratory experiments confirmed that silicon addition significantly increases phosphorus mobilization, by mobilizing Fe(II)-P phases from mineral surfaces. Silicon addition increased also soil respiration in phosphorus deficient soils. We conclude that silicon is a key component regulating mobilization of phosphorous in Arctic soils, suggesting that this may also be important for sustainable management of phosphorus availability in soils in general. Text Arctic DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Phosphorus availability in soils is an important parameter influencing primary production in terrestrial ecosystems. Phosphorus limitation exists in many soils since a high proportion of soil phosphorus is stored in unavailable forms for plants, such as bound to iron minerals or stabilized organic matter. This is in spite of soils having a high amount of total soil phosphorus. The feasibility of silicon to mobilize phosphorus from strong binding sites of iron minerals has been shown for marine sediments but is less well studied in soils. Here we tested the effect of silicon on phosphorus mobilization for 143 Artic soils (representing contrasting soil characteristics), which have not been affected by agriculture or other anthropogenic management practices. In agreement with marine studies, silicon availabilities were significantly positive correlated to phosphorus mobilization in these soils. Laboratory experiments confirmed that silicon addition significantly increases phosphorus mobilization, by mobilizing Fe(II)-P phases from mineral surfaces. Silicon addition increased also soil respiration in phosphorus deficient soils. We conclude that silicon is a key component regulating mobilization of phosphorous in Arctic soils, suggesting that this may also be important for sustainable management of phosphorus availability in soils in general. |
format |
Text |
author |
Schaller, Jörg Faucherre, Samuel Joss, Hanna Obst, Martin Goeckede, Mathias Planer-Friedrich, Britta Peiffer, Stefan Gilfedder, Ben Elberling, Bo |
spellingShingle |
Schaller, Jörg Faucherre, Samuel Joss, Hanna Obst, Martin Goeckede, Mathias Planer-Friedrich, Britta Peiffer, Stefan Gilfedder, Ben Elberling, Bo Silicon increases the phosphorus availability of Arctic soils |
author_facet |
Schaller, Jörg Faucherre, Samuel Joss, Hanna Obst, Martin Goeckede, Mathias Planer-Friedrich, Britta Peiffer, Stefan Gilfedder, Ben Elberling, Bo |
author_sort |
Schaller, Jörg |
title |
Silicon increases the phosphorus availability of Arctic soils |
title_short |
Silicon increases the phosphorus availability of Arctic soils |
title_full |
Silicon increases the phosphorus availability of Arctic soils |
title_fullStr |
Silicon increases the phosphorus availability of Arctic soils |
title_full_unstemmed |
Silicon increases the phosphorus availability of Arctic soils |
title_sort |
silicon increases the phosphorus availability of arctic soils |
publisher |
University of Bayreuth |
publishDate |
2019 |
url |
https://dx.doi.org/10.15495/epub_ubt_00004621 https://epub.uni-bayreuth.de/id/eprint/4621 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_rights |
Creative Commons BY 4.0: Namensnennung http://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.15495/epub_ubt_00004621 |
_version_ |
1766329237039480832 |