Which risk increases when ancient Andean terrace irrigation systems experience prolonged drought conditions?

💡 Explanation

When terrace irrigation water is significantly reduced, capillary action draws dissolved salts to the soil surface leading to evaporative salt deposition, creating salinization because water wicks upwards bringing the concentration of dissolved salts to the soil. Therefore soil salinization increases, rather than frost damage, reduced infiltration, or sediment deposition that depend on different climatic conditions and fluid dynamics effects.

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