Which outcome primarily results in arid landscapes downstream of large alluvial fans due to water management?

💡 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.

• Which morphological feature indicates increased glacial erosion within a cirque basin?
• Which flow pattern arises when wind-driven surface currents converge toward the center of an ocean gyre?
• Which erosional mechanism deepens cirques during glacial advance?
• Which risk increases within subterranean cave ecosystem boundaries when agriculture increases phosphorus runoff upstream?
• Which geological outcome dominates at the apex of an actively forming alluvial fan?
• Which risk increases when surface winds weaken over the North Pacific subtropical gyre?