Research Article
Study on Irrigation Water Quality in the Rift Valley Areas of Awash River Basin, Ethiopia
Table 8
Seasonal variation of RSC (meq/L) for three years (2016/17ā2018/19) across different locations.
| Year | Season | Locations | Akaki | Mojo | Koka | Wonji | Melkasa | Tibila | Metehara | Beseka | Melkasedi | Werer | Ambash | Meteka | Meteka hot spring | Mille | Dupty | Assayta | Afambo |
| 2016/17 | Season 1 | 0.10 | 1.10 | 0.50 | 0.20 | 0.09 | 5.50 | 0.10 | 25.10 | 2.50 | 0.50 | 0.30 | 0.20 | 10.20 | 0.10 | 0.10 | 0.10 | 0.10 | Season 2 | 1.76 | 8.30 | 1.70 | 0.20 | 1.70 | 0.10 | 0.30 | 45.60 | 13.30 | 10.80 | 11.80 | 0.60 | 9.70 | 2.70 | 6.40 | 11.30 | 2.60 | Season 3 | 0.02 | 4.25 | 0.70 | 0.30 | 0.92 | 8.00 | 0.85 | 33.80 | 13.53 | 7.00 | 11.30 | 1.40 | 6.29 | 1.40 | 3.25 | 5.70 | 0.70 | Season 4 | 0.11 | 0.20 | 0.10 | 0.20 | 0.40 | 2.10 | 0.30 | 22.00 | 13.75 | 3.20 | 10.80 | 2.20 | 2.88 | 0.10 | 0.10 | 0.10 | 0.20 | 2017/18 | Season 1 | 0.04 | 13.26 | 0.10 | 14.90 | 0.13 | 1.45 | 8.40 | 21.60 | 3.28 | 5.00 | 3.09 | 2.43 | 4.71 | 0.10 | 0.10 | 0.04 | 1.28 | Season 2 | 0.14 | 6.98 | 1.35 | 8.05 | 0.93 | 1.43 | 5.10 | 24.40 | 5.09 | 5.41 | 5.76 | 5.62 | 7.01 | 1.12 | 0.39 | 0.82 | 1.44 | Season 3 | 0.14 | 2.50 | 2.60 | 0.60 | 2.22 | 1.40 | 1.00 | 27.20 | 6.90 | 5.80 | 7.46 | 8.80 | 9.30 | 1.00 | 0.58 | 1.50 | 2.60 | Season 4 | 1.00 | 1.00 | 1.90 | 1.40 | 1.70 | 1.11 | 2.60 | 19.90 | 4.40 | 5.30 | 10.20 | 4.20 | 7.40 | 1.30 | 3.30 | 0.90 | 2.50 | 2018/19 | Season 1 | 0.09 | 0.70 | 0.30 | 0.40 | 1.30 | 2.56 | 1.00 | 19.40 | 2.00 | 2.00 | 0.90 | 3.30 | 6.20 | 0.90 | 2.80 | 2.90 | 0.80 | Season 2 | 0.10 | 6.42 | 6.53 | 4.64 | 3.66 | 3.93 | 3.55 | 36.48 | 14.01 | 3.06 | 9.98 | 12.21 | 13.16 | 5.10 | 7.46 | 6.06 | 5.44 | Season 3 | 0.09 | 13.07 | 9.99 | 7.94 | 6.01 | 5.29 | 6.41 | 53.55 | 26.02 | 4.11 | 19.06 | 21.12 | 20.11 | 9.30 | 12.11 | 9.22 | 10.08 | Season 4 | 0.09 | 4.20 | 0.90 | 1.39 | 1.48 | 2.50 | 1.08 | 60.73 | 4.28 | 6.22 | 3.86 | 3.16 | 6.10 | 1.04 | 2.73 | 2.80 | 2.91 | Mean | 0.31 | 5.17 | 2.22 | 3.35 | 1.71 | 2.95 | 2.56 | 32.48 | 9.09 | 4.87 | 7.88 | 5.44 | 8.59 | 2.01 | 3.28 | 3.45 | 2.55 | Min | 0.02 | 0.20 | 0.10 | 0.20 | 0.09 | 0.10 | 0.10 | 19.40 | 2.00 | 0.50 | 0.30 | 0.20 | 2.88 | 0.10 | 0.10 | 0.04 | 0.10 | Max | 1.76 | 13.26 | 9.99 | 14.90 | 6.01 | 8.00 | 8.40 | 60.73 | 26.02 | 10.80 | 19.06 | 21.12 | 20.11 | 9.30 | 12.11 | 11.30 | 10.08 | SD | 0.53 | 4.57 | 3.01 | 4.68 | 1.67 | 2.30 | 2.74 | 13.94 | 7.16 | 2.64 | 5.40 | 6.04 | 4.54 | 2.68 | 3.71 | 3.80 | 2.80 |
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