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.

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