Within Aztec chinampa agriculture, which mechanism limits sustained yields during prolonged drought conditions?

💡 Explanation

During drought, the water table in chinampas drops, increasing capillary action because water containing dissolved salts is drawn upwards, accumulating near the surface and inhibiting plant growth. Therefore, increased soil salinity results, rather than reduced nutrients since they are constantly replenished, limited oxygen, or increased pest infestations which are separate factors.

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