USE OF BIOCHAR TO PROTECT THE VEGETABLES AGAINST THE CHLORDECONE CONTAMINATION: THE STRATEGY OF THE SEQUESTRATION - Aix-Marseille Université Accéder directement au contenu
Article Dans Une Revue JOJ Horticulture & Arboriculture Année : 2023

USE OF BIOCHAR TO PROTECT THE VEGETABLES AGAINST THE CHLORDECONE CONTAMINATION: THE STRATEGY OF THE SEQUESTRATION

Résumé

In the case of certain pesticides, the known decontamination methods are not always technically feasible (phyto or bio remediation) or financially and ecologically feasible (excavation, chemical decontamination). We offer an alternative to complete depollution: the sequestration of the pesticide in the soil with the aim of limiting the transfer of the contaminant to the ecosystems. In previous work we have shown that the incorporation of organic matter (compost) in the soil increases the sequestration in the soil of chlordecone. Thus, although contaminated, the soil only releases the pollutant more weakly in the vegetables grown and the water that passes through it. However, organic materials are not permanent and the process must be renewed at intervals of the order of 1 to 2 years. We propose to use Biochar, organic matter stabilized in solid form, which could fulfill the same role of sequestration with a longer duration of effectiveness. This agro-ecological management method (compost, biochars) makes it possible to offer a method that is easy to implement because it is mastered by farmers.
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Dates et versions

hal-04296783 , version 1 (20-11-2023)

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T Woignier. USE OF BIOCHAR TO PROTECT THE VEGETABLES AGAINST THE CHLORDECONE CONTAMINATION: THE STRATEGY OF THE SEQUESTRATION. JOJ Horticulture & Arboriculture, 2023, 4 (1), pp.1-4. ⟨10.19080/JOJHA.2023.03.555630⟩. ⟨hal-04296783⟩
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