Sprinkler systems can impact soil health and structure by causing erosion, compaction, and nutrient leaching. The high-pressure water streams from sprinklers can dislodge soil particles, leading to erosion and sedimentation. Additionally, frequent watering can compact the soil, reducing its aeration and water infiltration capacity. To mitigate these effects, use sprinklers with lower flow rates, adjust the spray pattern to minimize runoff, and incorporate organic matter into the soil to improve its structure and fertility.