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← GeographyWhich outcome primarily results in arid landscapes downstream of large alluvial fans due to water management?
A)Increased rates of chemical weathering
B)Diminished floodplain deposition rates
C)Accelerated soil salinization processes✓
D)Enhanced groundwater recharge potential
💡 Explanation
When water is diverted from alluvial fans for irrigation, decreased sediment transport occurs because of reduced water flow, leading to salt accumulation in downstream areas where evaporation rates are high but leaching is limited. Therefore, accelerated soil salinization results, rather than other scenarios which require increased sediment or water availability.
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