|  | Runoff | Runoff coefficient | ||||
---|---|---|---|---|---|---|---|
Year | Treatments | Mean ± SD (mm) | t | p value | Mean ± SD (%) | t | p value |
2007 | GL | 234.8 ± 9.3a | 2.37 | 0.077 | 30.01 ± 1.19a | 2.371 | 0.077 |
 | CL | 218.8 ± 7.1a |  |  | 27.97 ± 0.09a |  |  |
2008 | GL | 325.1 ± 5.4a | 5.28 | 0.006 | 27.27 ± 0.49a | 5.157 | 0.007 |
 | CL | 305.7 ± 3.3b |  |  | 25.70 ± 0.27b |  |  |
2009 | GL | 282.0 ± 7.3a | 5.82 | 0.004 | 27.57 ± 0.50a | 6.013 | 0.004 |
 | CL | 251.7 ± 5.3b |  |  | 24.37 ± 0.70b |  |  |
Average | GL | 280.7 ± 39.6a | 1.19 | 0.250 | 28.22 ± 1.50a | 2.945 | 0.01 |
 | CL | 258.7 ± 38.4a |  |  | 26.03 ± 1.67b |  |  |