From: Benefit assessment of soil and water conservation from cropland to forest in hilly Loess Plateau at Qinghai
Erosion grades
Grids
Erosion area (km2)
Percent (%)
Slight
114
6.16
Gentle
82
4.43
Moderate
730
39.44
Strong
588
31.77
Utmost
279
15.07
Severe
58
3.13