Fig. 8. Relationship between (A) one year of measured daily mean concentrations of total phosphorus and daily mean discharge in the Gelbæk stream, Denmark, and (B) the enrichment ratio between total phosphorus concentration (µg P L^–1) and the concentration of suspended solids (mg L^–1) applying autumn plowing and spring harrowing in two experimental Universal Soil Loss Equation (USLE) plots at Askim, Norway.