Which mechanism increased agricultural yields in Aztec chinampas compared to open-field cultivation?

💡 Explanation

In Aztec chinampas, nutrient-rich sediment was dredged from the canals and used as fertilizer, directly enriching the soil because it acted as continuous replenishment, leading to higher yields. Therefore dredging sediment resulted in greater agricultural output, rather than crop rotation, drainage, or terracing which are less directly effective in the specific chinampa environment.

• Which outcome resulted from intensive maize cultivation on pre-Columbian terraced fields along steep Andean slopes?
• Which mechanism limited scaling up bronze manufacturing in ancient Mesopotamia despite trade networks?
• Which diffusion-based mechanism enabled ancient bloomery furnaces to produce wrought iron from iron ore?
• Which outcome resulted from Aztec chinampa construction limiting aquatic foraging grounds?
• Which outcome increases when seasoning timber too rapidly during wooden ship construction?
• Which outcome arises from the presence of decaying organic matter within a pre-Columbian chinampa system?