Which limitation constrained the pre-Columbian chinampa agricultural technique in Mesoamerica?

💡 Explanation

When continuous cultivation occurred without inputs, nutrient depletion of chinampa soils emerged because the initial fertility from lake sediments diminishes, reducing long-term yields. Therefore, nutrient depletion, and not animal dependence, wind erosion, or metal tool lack imposed primary restrictions, since construction used readily available organic material.

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