Agricultural and Biological Sciences
8 years ago

Rainfall intensity linked to soil erosion, impacting phosphorus loss in runoff

Journal of Soil and Water Conservation
Phosphorus Loss from Soil-Runoff-Sediment at Slope Plots
Yang Yu

Paper Summary

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The study looked at how phosphorus is lost from soil when it rains and causes runoff. They found that sedimentation increases with rainfall, soil erosion is affected by rainfall intensity, and runoff duration is linked to soil moisture. The concentration of dissolved phosphorus is highest in farmland, while particulate phosphorus loss is highest in farmland and orchards. Phosphorus loss is higher in areas without vegetation. The most phosphorus is lost on slopes between 15° and 20°. Soil phosphorus is mainly lost in tiny particles carried by sediment.