Which primary consequence results when pre-Columbian chinampa agriculture encounters prolonged flooding above the typical water cycle?

💡 Explanation

When prolonged flooding occurs, nutrient leaching from the soil happens because excessive water saturation dissolves and carries away essential minerals required for plant growth below the chinampa's root zone. Therefore nutrient leaching results, rather than biodiversity increase, reduced erosion, or enhanced aeration, which depend on controlled water levels unique to the floating gardens.

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