Response of Soil Detachment Rate to Sediment Load and Model Examination
A Key Process Simulation of Rill Erosion on Steep Loessial Hillslopes
Bibliographic Data
| ID | 15475223 |
|---|---|
| Authors | Nan Shen (0000-0002-8592-5779, Ministry of Water Resources of the People's Republic of China), Zhanli Wang (0000-0002-4656-0607, Institute of Soil and Water Conservation, corresponding author), Fengbao Zhang (0000-0003-1003-256X, Northwest A&F University, corresponding author), Chunhong Zhou (0009-0001-4361-3160, Ministry of Water Resources of the People's Republic of China) |
| Year | 2023 |
| Volume | 20 |
| Issue | 4 |
| Pages | 2839-2839 |
| Publication date | 2023-02-06 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph20042839 |
| PMID | 36833536 |
| OpenAlex | W4319317866 |
| Language | EN |
| Citations received | 2 |
| References cited | 37 |
The rate of soil detachment by water flow indicates soil erosion intensity directly. The exact relation between soil detachment rate and actual sediment load in water flow, however, is still unclear, and the existing relationships have not been adequately tested. The aims of the present study were to investigate the response of soil detachment rate to sediment load using rill flume data with loessial soil and to quantitatively examine the soil detachment equations in the WEPP and EUROSEM soil erosion models. Six slopes were combined with seven flow discharges to measure detachment rates under seven sediment loads using a rill flume with a soil-feeding hopper. Significant differences were found among the soil detachment rate by different sediment loads in low sediment load levels, but an insensitive response of soil detachment rate to sediment load was found under high levels of sediment load. The soil detachment rate was proved to be negatively linearly correlated with sediment load. The rill detachment equation in the WEPP model predicted the soil detachment rate by rill flow very well under our experiment condition. The soil detachment equation in the EUROSEM model underestimated the detachment rates under controlled conditions, but removing the setting velocity from the equation greatly improved prediction. Further experiments that could reflect the dynamic convective detachment and deposition process need to be conducted to compare with the present examination results and to further understand rill erosion processes
Deposition (geology · Erosion · Flow (mathematics · Flume · Geomorphology · Geotechnical engineering · Hydrology (agriculture · Mechanics · Rill · Sediment · Sediment transport · Soil conservation · WEPP · Aeolian processes and effects · Environmental Science · Hydrology and Sediment Transport Processes · Soil erosion and sediment transport · Geology · Soil Science
| Unique citing works | 2 |
|---|---|
| Citations per year | 1 |
| Citation span | 2024 - 2026 (3) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 2 |