Skip to main content

Table 1 Monthly and annual rainfall (RF), runoff (R), runoff coefficient (RC), and the relative effect (RE) of conservation measures

From: Runoff and soil loss responses of cultivated land managed with graded soil bunds of different ages in the Upper Blue Nile basin, Ethiopia

Treatment Monthly Annually (four months)
Month RF (mm) R (mm) RE (%) RC (%) RF (mm) R (mm) REc (%) RC (%)
New soil bund (Pnew) Jun 293.6 38.53 − 60.13a (− 49.5b) 13.12 1544 479.85 − 34.94a (− 25.56b) 31.08
July 509.3 175.55 − 32.73a (− 23.1b) 34.47
Aug. 483.5 198.10 − 25.98a (− 18.0b) 40.97
Sep. 257.6 67.67 − 39.72a (− 31.2b) 26.27
Old soil bund (Pold) Jun 293.6 76.50 − 20.84 26.06 1544 644.61 − 12.60 41.75
July 509.3 228.28 − 12.53 44.82
Aug. 483.5 241.49 − 9.77 49.95
Sep. 257.6 98.34 − 12.40 38.18
Non-treated (Pnon) Jun 293.6 96.64 - 32.91 1544 737.51 - 47.77
July 509.3 260.98 - 51.24
Aug. 483.5 267.63 - 55.35
Sep. 257.6 112.26 - 43.58
  1. RF is total monthly and annual rainfall depth (in millimeters), R is total monthly and annual runoff depth (in millimeters), RE is the relative effect of treatments on runoff (in percent), RC is the monthly and annual runoff coefficient (in percent), “a” and “b” are the relative effects of Pnew as compared to Pnon and Pold, respectively
  2. cThe relative effect is calculated by considering the runoff from non-treated plot 100%