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As a dynamic source and sink of elements, the secondary Si-bearing solid phases in soil partly govern transfer of elements and pollutants. Terrestrial plants affect silicate mineral weathering and make Si readily soluble through the formation of phytoliths, a biogenic form of amorphous silica, which return on topsoil through litterfall. Besides phytoliths, other readily-soluble Si components, such...
Silicon uptake by terrestrial plants impacts the Si land-ocean fluxes, therefore inducing significant modifications for biogeochemical cycle of Si. Understanding the mechanisms that control Si uptakes by forest vegetation is of great interest for the study of the global Si cycle as the world’s total forest area corresponds to about 30% of the land area. Our study compares Si uptake in controlled conditions...
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