Fig. 6. Weighted soluble reactive phosphorus (SRP) concentrations per flow path configuration in Flumes 1 and 2. Experiments at (a) 6°C and (b) 25°C. I_b, inflow port at the bottom of the flume; I_t, inflow port at the top of the flume; O_b, outflow port at the bottom of the flume; O_t, outflow port at the top of the flume; RM, water input from rainfall simulator. Diagonal lines for Flume 2; vertical for Flume 1.