Table 4 Analysis of erosion intensity under different land uses
Land use type | Sediment modulus /t.km-2 | Area share /% | Erosion amount /t | Amount ratio /% |
|---|---|---|---|---|
mountain road | 3163 | 0.3 | 364 | 10.0 |
road brunche | 500 | 0.5 | 120 | 3.3 |
oil road | 13500 | 0.2 | 1053 | 29.0 |
grass land | 15 | 29.1 | 203.8 | 5.6 |
shrub land | 10 | 20.2 | 94.3 | 2.6 |
farmland | 184 | 2.8 | 235.9 | 6.5 |
grass+shrub on > 35 °slope | 68 | 21.2 | 672.9 | 18.5 |
un-used land | 100 | 19.0 | 891.6 | 24.5 |
The total | 78 | 93.3* | 3636 | 100.0 |