Table 7 Annual sediment retention levels, rates, and area coverage
Sediment retained (t ha−1 year−1) | Retention levels | Area (ha) | % of the total area | Estimated annual Sediment retention (t) | % of the total retention |
|---|---|---|---|---|---|
0–50 | Very low | 73,377.2 | 51.4 | 734,325.4 | 3.9 |
50–100 | Low | 23,768.9 | 16.7 | 2,118,433.6 | 11.4 |
100–500 | Moderate | 35,619.5 | 25.0 | 6,906,696.0 | 37.0 |
500–1000 | High | 8,515.5 | 6.0 | 5,699,354.4 | 30.6 |
> 1000 | Very high | 1,379.9 | 1.0 | 3,187,306.6 | 17.1 |
Total | Â | 142,661.0 | 100 | 18,646,115.97 | 100 |