Mathematical method for physics-based rill erosion process using detachment and transport capacities
文献类型：期刊论文
| 作者 | Ban, Y. Y.1; Lei, T. W.2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2022-03-21 |
| 卷号 | 12期号:1页码:10 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-022-08512-6 |
| 通讯作者 | Ban, Y. Y.(banyy@igsnrr.ac.cn) ; Lei, T. W.(leitingwu@cau.edu.cn) |
| 英文摘要 | Quantification of rill erosion processes is of great importance in both model parameter estimations for process-based rill erosion models and in model performance verification. This study presents a mathematical method to determine a physics-based rill erosion process derived from the feedback relationship of transport capacity and detachment capacity. Experimental data sets were used to determine transport capacities under steep slope gradients of 15 degrees, 20 degrees, and 25 degrees and the detachment capacities. The estimated transport and detachment capacities were then used to determine the sediment delivery processes under different hydraulic regimes. The sediment concentrations along the rill determined with the mathematical method were compared with the experimental measurements to verify the methodology and the mathematics. Results showed that the mathematical model results agreed well with the experimental data in references. The predicted detachment capacity calculated by the new method was capable of predicting saturated, unsaturated, and thawed slope, but incapable of partially thawed soil. This study not only supports the analytical solution to the differential equation of rill erosion, but also verifies that the experimental method was fit well with the mathematical concept. The new method provides a useful and efficient way to quantify rill erosion processes. |
| WOS关键词 | SHEAR-STRESS ; SOIL ; LOESS ; FROZEN ; FLOW |
| 资助项目 | National Natural Science Foundation of China[42007060] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | NATURE PORTFOLIO |
| WOS记录号 | WOS:000771589000007 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/173072]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Ban, Y. Y.; Lei, T. W. |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.China Agr Univ, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ban, Y. Y.,Lei, T. W.. Mathematical method for physics-based rill erosion process using detachment and transport capacities[J]. SCIENTIFIC REPORTS,2022,12(1):10. |
| APA | Ban, Y. Y.,&Lei, T. W..(2022).Mathematical method for physics-based rill erosion process using detachment and transport capacities.SCIENTIFIC REPORTS,12(1),10. |
| MLA | Ban, Y. Y.,et al."Mathematical method for physics-based rill erosion process using detachment and transport capacities".SCIENTIFIC REPORTS 12.1(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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