Soil and Water Nutrient Dynamics

Nutrients like nitrogen and phosphorus move continuously between soils, groundwater, streams, and living organisms, and understanding how they cycle through landscapes sits at the core of environmental chemistry research on soil and water systems. When these nutrients accumulate faster than ecosystems can process them—often because of agricultural runoff or urban development—the resulting pollution degrades drinking water supplies, fuels algal blooms, and creates oxygen-depleted dead zones in rivers and coastal waters. Much current work focuses on the hyporheic zone, the active mixing region where stream water and groundwater exchange, because this boundary turns out to control a surprising share of nutrient transformation and removal. Researchers are actively working to determine when and where nutrient retention or release is most intense, and whether interventions like riparian buffer strips and stream restoration can reliably offset the loads delivered from agricultural watersheds at meaningful scales.

Works

73,631

Total citations

1,463,443

Keywords

Nutrient CyclingWater QualityHyporheic ZonePhosphorus ManagementNitrogen DynamicsStream Restoration