Which risk increased within the Aztec chinampas agricultural system due to intensive continuous maize cultivation?

💡 Explanation

Due to intensive maize cultivation, nutrient depletion happens because maize rapidly consumes nitrogen, phosphorus, and potassium from the soil, drawing down the available levels with ongoing harvests. Therefore soil nutrient depletion results, decreasing yields over time, rather than salinity, declining water tables, or pest susceptibility, processes which depend or hydrological or ecological factors instead.

• Which structural consequence arises when oak timbers in 18th-century ship construction were not sufficiently seasoned before use?
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• Which astronomical measurement error can historically result from thermal expansion differences in an astrolabe's construction materials?
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• Which constraint limited maize cultivation expansion in pre-Columbian Andean terraced agriculture above 3500 meters?