According to that standard, 50% of the number of rainfall can be eliminated and soil erosion volume which failed to choose takes up 3% of totalerosion amount.
按此标准，可剔除降雨场次50%以上，而漏选的土壤流失量占总侵蚀量的比例在3%以内。
2
On the other hand, the contributions of interrill and rill erosion to the totalerosion are 35% and 65% respectively, and their spatial distribution characters are different form each other.
Unfortunately, such estimates did not adequately account for past differences in rates of sedimentation or losses to the total section of strata during episodes of erosion.