Table 11 Variation of annual sediment export rates with slope classes
Slope class (%) | Area | Estimated annual sediment export | |||
|---|---|---|---|---|---|
ha | % | t year−1 | Contribution to the total sediment export (%) | t ha−1 year−1 | |
0–5 | 77,187.8 | 54.1 | 34,675.58 | 15.3 | 0.5 |
5–15 | 41,819.1 | 29.3 | 90,087.59 | 39.7 | 2.2 |
15–30 | 17,147.2 | 12.01 | 67,754.61 | 29.9 | 4.0 |
30–50 | 5,590.6 | 3.9 | 28,393.01 | 12.5 | 5.1 |
> 50 | 916.3 | 0.6 | 5,779.56 | 2.5 | 6.3 |
Total | 142,661.0 | 100.0 | 226,690.36 | 100 | 1.6 |