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Iron fractionation and iron plaque-mediated effects of woody peat and its humate on cadmium and arsenic behavior in a ricesoil system
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DOI：10.1016/j.ecoenv.2026.120652.png)
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Abstract
En 中文
• Woody peat and its humate promoted transformation of crystalline Fe oxides into amorphous phases. • Fe oxides fractionation effectively modulates Cd/As availability in flooded paddy soils. • Decreased Fe plaque formation reduced Cd retention while enhancing As sequestration. • Distinct variations in available Cd/As & CdIP/AsIP effectively governed Cd/As uptake by rice.
Keywords:
Biogeochemical cycling
Iron oxides
Metal(loid) speciation
Paddy soil
Soil–root interface
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