Equations for predicting interrill erosion on steep slopes in the Three Gorges Reservoir, China
- Resource Type
- article
- Authors
- Feng Qian; Linyao Dong; Jigen Liu; Bei Sun; Honghu Liu; Jiesheng Huang; Hao Li
- Source
- Journal of Hydrology and Hydromechanics, Vol 68, Iss 1, Pp 51-59 (2020)
- Subject
- purple soil
interrill erosion rate
rainfall intensity
slope gradient
hydraulic parameter
Hydraulic engineering
TC1-978
- Language
- English
- ISSN
- 1338-4333
The Three Gorges Reservoir region suffers from severe soil erosion that leads to serious soil degradation and eutrophication. Interrill erosion models are commonly used in developing soil erosion control measures. Laboratory simulation experiments were conducted to investigate the relationship between interrill erosion rate and three commonly hydraulic parameters (flow velocity V, shear stress τ and stream power W). The slope gradients ranged from 17.6% to 36.4%, and the rainfall intensities varied from 0.6 to 2.54 mm·min−1.