Table 16 Drainage densities and Soil erosion in the northern catchment of Lake Tana
 Drainage density (Dd) | Entire catchment ha (%) and Soil loss tons (%) | Moderately erosion cells ha (%) and Soil loss tons (%) | High erosion cells ha (%) and Soil loss tons (%) | Extreme erosion cells ha (%) and Soil loss tons (%) |
|---|---|---|---|---|
High Dd | 131,393 (44.2) and 768,110 (45.1) | 9948 (33.6) and 198,680 (33.2) | 8156 (38.3) and 58,295 (38.1) | 2733 (41.3) and 378,825 (46.1) |
Low Dd | 160,985 (55.8) and 933,659 (54.9) | 19,663 (66.4) and 399,255 (66.8) | 13,156 (61.7) and 94,730 (61.9) | 3881 (58.7) and 442,181 (53.9) |