Which soil degradation risk increases when pre-Columbian terrace construction lacks sufficient drainage?

💡 Explanation

When terrace drainage is insufficient, capillary action draws groundwater (containing dissolved salts) upwards because evaporation at the terrace surface concentrates salt precipitates. Therefore, salinization increases, rather than leaching, laterization, or eutrophication which require different environmental conditions and mechanisms related to excess water removal.

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