ABSTRACT
The calculation formula of the cumulative relative deviation rate is as follows (Qing et al. 2010):
Where Pj is the rainfall erosivity of jth year. The μ is the average rainfall erosivity.
Long-term variation rate is defined as follows:
Lri = σ(i,i−4)/μ(i,i−4) Where the σ(i,i-4) is the standard deviation of five
consecutive year rainfall erosivity. The μ(i,i-4) is the average of five consecutive year rainfall erosivity.
