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Plant-induced weathering of a basaltic rock: Experimental evidence

PHILIPPE HINSINGER, OMAR NETO FERNANDES BARROS, MARC F. BENEDETTI, YVES NOACK, GABRIEL CALLOT1 Abstract Abstract—The active role of higher plants in the weathering of silicate minerals and rocks is still a question for debate. The present work aimed at providing experimental evidence of the important role of a range of crop plants in such processes. In order to quantitatively assess the possible effect of these diverse plant species on the weathering of a basaltic rock, two laboratory experiments were carried out at room temperature. These compared the amounts of elements released from basalt when leached with a dilute salt solution in the ...