Study on the runoff sediment transport rate of two planting modes under the influence of rainfall

In order to explore the impact of ecological planting pattern on runoff sediment transport rate(T 2 ), this study in two planting modes with a single planting of Prunella vulgaris (A) and P. vulgaris and earthworms (B) were investigated through simulated rainfall experiments in the field. The results showed that: 1) T 2 decreased first and then stabilized with the rainfall duration,which is dominated by the composition of soil particle size and runoff depth;2) T 2 under gentle slope and steep slope conditions is greatly affected by rainfall intensity and slope, respectively; 3) T 2 ,which has a good correlation with runoff separation rate (D 2 ), needs to be explained in conjunction with soil properties or raindrop kinetic energy. The main controlling factors of T 2 in bare slope, B, A are raindrop kinetic energy, D 2 , and organic matter, which explain 93.10%, 95.76%, and 98.65%.Compared with B, A has obvious economic and ecological value.