No abstract

The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adem.202201761.

<p><span class="Y2IQFc" lang="en">In order to quantitatively reveal the influence of check dam measures configuration on the runoff formation and evolution process in the Huangqiu area, artificial rainfall simulation experiments were used in indoor small watersheds, and small watersheds under different check dam measures deployment scenarios (no dam, single dam, double dam) were tested. The characteristics of hydrodynamics and erosion dynamics of the runoff at the outlet section of the watershed are studied. The results show that the check dam has a significant impact on the river basin runoff and sediment transport process. After the check dam is laid out, the average runoff is reduced by 71.58%, and the average sediment production rate is reduced by 85.60%. decrease to varying degrees. Based on the random forest algorithm, the relative importance of the hydrodynamic and erosion dynamic parameters affecting the sediment yield and sediment particle size is sorted, and the Reynolds number Re and runoff erosion power are relatively important factors affecting the erosion sediment yield and particle sorting motivation factor. The research results provide theoretical and technical support for the construction and development of check dams in the Loess Plateau.</span></p>