Study of slope rain drops splash-erosion based on rough neural network;

The effects of litter layer on splash erosion in Populus davidiana woodland;

Through rainfall simulating in laboratory, and observation on soil sample slices, this study intended to disclose crust development, and reveal the relationship between crust and splash erosion.

Choosing three different types of soils,soil with plant roots,soil added plant roots and soil without or only a few plant roots,we do a serious of experiments,including splash erosion,penetration and breaking down.

Simulated rainfall experiments with 3 loessial soils of Ansai, Suide, Yangling, and Yangling arable soil were conducted to evaluate effects of rainfall and soil structure on raindrop splash.

On the basis of experiments about splash of single raindrop and time rainfall, the splash laws of soil crust were studied.

The sputter erosion mechanism of electrode material and the computation method of arc power heating electrical contacts are analyzed in this paper.

This study analysed the processes of rainsplash erosion and introduced a conception of the effective slope distance during rainsplash erosion.

After dimensional analysis,this study deduced a quantitative model for calculating rainsplash erosion.

The concept of effective slope section eroded by raindrop is proposed by analyzing the process of raindrop erosion on slope.

Based on the physical characteristics and the soil erosion mechanisms of the raindrops on the hillslope in the mountainous watershed,the computational formula of the characteristics of the raindrops arrested by the vegetation and raindrop erosion,runoff and rill erosion have been established in accordance with the experiment studies.