Skip to Main Content
Table 2

Relationship between nutrient concentration (y) and contact time (x) under different treatments

Different treatments
Concentration of runoff-associated TN (y)
Concentration of runoff-associated TP (y)
Rainfall intensity (mm·h−1)Rock fragment cover (%)EquationR2EquationR2
30 y = 5.53x + 5.00 0.841* y = 0.18x − 0.10 0.975** 
10 y = 11.62x − 5.32 0.954** y = 0.28x − 0.29 0.911** 
20 y = 8.75x − 5.23 0.954** y = 0.044x + 0.033 0.426* 
30 y = 2.25x + 6.40 0.983** y = 0.16x − 0.23 0.968** 
60 y = 35.15x − 20.30 0.980** y = 0.94x − 0.72 0.932** 
10 y = 5.07x + 4.80 0.744** y = 0.32x − 0.21 0.812* 
20 y = 32.01x − 24.17 0.827* y = 0.74x − 0.71 0.542* 
30 y = 19.99x − 13.01 0.549* y = 2.45x − 2.86 0.774** 
90 y = 3.53x + 7.31 0.387 y = 0.12x + 0.019 0.557* 
10 y = 32.20x − 13.32 0.881** y = 1.33x − 0.83 0.936** 
20 y = 31.54x − 14.61 0.794* y = 2.01x − 1.47 0.744* 
30 y = 32.32x − 16.19 0.654* y = 1.48x − 1.15 0.783* 
Different treatments
Concentration of runoff-associated TN (y)
Concentration of runoff-associated TP (y)
Rainfall intensity (mm·h−1)Rock fragment cover (%)EquationR2EquationR2
30 y = 5.53x + 5.00 0.841* y = 0.18x − 0.10 0.975** 
10 y = 11.62x − 5.32 0.954** y = 0.28x − 0.29 0.911** 
20 y = 8.75x − 5.23 0.954** y = 0.044x + 0.033 0.426* 
30 y = 2.25x + 6.40 0.983** y = 0.16x − 0.23 0.968** 
60 y = 35.15x − 20.30 0.980** y = 0.94x − 0.72 0.932** 
10 y = 5.07x + 4.80 0.744** y = 0.32x − 0.21 0.812* 
20 y = 32.01x − 24.17 0.827* y = 0.74x − 0.71 0.542* 
30 y = 19.99x − 13.01 0.549* y = 2.45x − 2.86 0.774** 
90 y = 3.53x + 7.31 0.387 y = 0.12x + 0.019 0.557* 
10 y = 32.20x − 13.32 0.881** y = 1.33x − 0.83 0.936** 
20 y = 31.54x − 14.61 0.794* y = 2.01x − 1.47 0.744* 
30 y = 32.32x − 16.19 0.654* y = 1.48x − 1.15 0.783* 

*p < 0.05, **p < 0.01.

Total nitrogen (TN); total phosphorus (TP).

Close Modal

or Create an Account

Close Modal
Close Modal