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The objective of this study was to investigate the role of dissolved CO 2 (H 2 CO 3 *) as a mechanism of cation removal from surface soils under secondary land uses in the tropics. Soil leachate columns were prepared with 0–10 cm soils from mature and secondary forest, and managed pastures, and extracted with H 2 CO 3 * from deionized water equilibrated with...
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