Rainfall as the major driver of plant Si availability in gibbsitic Andosols

Vander Linden, Charles;Li, Zimin;Iserentant, Anne;Delvaux, Bruno
(2020) EGU 2020 — Location: Vienna, Austria (4.May.2020)

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Authors
  • Vander Linden, CharlesUCLouvain
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  • Li, Ziminorcid-logoUCLouvain
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  • Iserentant, AnneUCLouvain
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  • Delvaux, Brunoorcid-logoUCLouvain
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Abstract
Dissolving primary silicates release solutes (Si, Al, Fe…) that recombine to form secondary clay minerals and/or (Al, Fe) oxides. In perhumid conditions, most of H4SiO4 can be leached out whereas gibbsite (Al(OH)3) forms. Gibbsite is thus a pertinent indicator of desilication intensity and Si bioavailability
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Vander Linden, C., Li, Z., Iserentant, A., & Delvaux, B. (2020). Rainfall as the major driver of plant Si availability in gibbsitic Andosols. EGU 2020, Vienna, Austria. https://hdl.handle.net/2078.5/240789