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Table 2 Runoff (mm) and runoff coefficient (%) in grazing land (GL) and cultivated land (CL) over the three study years

From: The influence of grazing and cultivation on runoff, soil erosion, and soil nutrient export in the central highlands of Ethiopia

  

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

  
  1. Columns with different letters are significantly different at 0.05 level, GL grazing land, CL cultivated land, SD standard deviation