Table 1 Soil erosion severity and conservation priority class
From: Soil erosion risk assessment in the Chaleleka wetland watershed, Central Rift Valley of Ethiopia
ID | Average soil loss (t ha −1 yr −1 ) | Erosion severity class | Priority class | Sub-watershed | Area (ha) | Proportion by area (percent) | Annual soil loss (ton/year) | Proportion of total soil loss (percent) |
|---|---|---|---|---|---|---|---|---|
1 | 2.52 – 10 | Low | VII | Lower Worka, lower Shenkora, lower Gemesho and lower Wedesa | 3689.46 | 13.6 | 23096 | 2.1 |
2 | 10 - 20 | Moderate | VI | Upper Wesha, upper Hallo,lower Lango | 4203.18 | 15.5 | 63047.7 | 5.8 |
3 | 20 – 30 | High | V | Medo, Upper Gemesho | 3506.4 | 13 | 87660 | 8 |
4 | 30 – 45 | Very high | IV | Lower Wosha | 1153.53 | 4.3 | 43257.4 | 4 |
5 | 45 – 60 | Severe | III | Upper Worka, lower Hallo and upper Wedesa | 9185.85 | 33.9 | 482257.1 | 44.2 |
6 | 60 – 80 | Very severe | II | Upper Shenkora, middle Gemesho, middle Wedesa | 3896.37 | 14.4 | 272745.9 | 25 |
7 | 80 - 85.64 | Extremely severe | I | Upper Lango | 1434.15 | 5.3 | 118776.3 | 10.9 |
Total | 27068.94 | 100 | 1090840.4 | 100 |