当前位置：
X-MOL 学术
›
Hydrol. Process.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Rill erosion processes on a constantly saturated slope
Hydrological Processes ( IF 2.8 ) Pub Date : 2020-07-22 , DOI: 10.1002/hyp.13849 Yuhan Huang 1 , Fahu Li 1 , Wei Wang 2 , Juan Li 1
Hydrological Processes ( IF 2.8 ) Pub Date : 2020-07-22 , DOI: 10.1002/hyp.13849 Yuhan Huang 1 , Fahu Li 1 , Wei Wang 2 , Juan Li 1
Affiliation
|
Rill erosion processes on saturated soil slopes are important for understanding erosion hydrodynamics and determining the parameters of rill erosion models. Saturated soil slopes were innovatively created to investigate the rill erosion processes. Rill erosion processes on saturated soil slopes were modelled by using the sediment concentrations determined by sediment transport capacities (STCs) measurement and the sediment concentrations at different rill lengths. Laboratory experiments were performed under varying slope gradients (5°, 10°, 15°, and 20°) and unit‐width flow rates (0.33, 0.67, and 1.33 × 10−3 m3 s−1 m−1) to measure sediment concentrations at different rill lengths (1, 2, 4, and 8 m) on saturated soil slopes. The measured sediment concentrations along saturated rills ranged from 134.54 to 1,064.47 kg/m3, and also increased exponentially with rill length similar to non‐saturated rills. The model of the rill erosion process in non‐saturated soil rills was applicable to that in saturated soil rills. However, the sediment concentration of the rill flow increased much faster, with the increase in rill length, to considerably higher levels at STCs. The saturated soil rills produced 120–560% more sediments than the non‐saturated ones. Moreover, the former eroded remarkably faster in the beginning section of the rills, as compared with that on the non‐saturated soil slopes. This dataset serves as the basis for determining the erosion parameters in the process‐based erosion models on saturated soil slopes.
中文翻译：
不断饱和的斜坡上的小河侵蚀过程
饱和土壤斜坡上的小河侵蚀过程对于理解侵蚀水动力和确定小蚀模型的参数很重要。创新地创建了饱和土壤坡度，以研究小溪的侵蚀过程。通过使用通过泥沙输送能力（STC）测量确定的泥沙浓度和不同钻头长度下的泥沙浓度，对饱和土壤斜坡上的小河侵蚀过程进行建模。在不同的坡度梯度（5°，10°，15°和20°）和单位宽度流速（0.33、0.67和1.33×10 -3 m 3 s -1 m -1）下进行实验室实验）以测量饱和土质边坡上不同钻长（1、2、4和8 m）的沉积物浓度。沿饱和小河测得的沉积物浓度范围为134.54至1,064.47 kg / m 3，并且与非饱和小溪相似，小溪长度也呈指数增长。非饱和土壤小溪中的小溪侵蚀过程模型适用于饱和土壤小溪中的小溪侵蚀过程模型。但是，随着小溪长度的增加，小溪流的沉积物浓度增加得更快得多，在STC处达到相当高的水平。饱和的土壤小溪比不饱和的小溪多出120–560％的沉积物。此外，与非饱和土质边坡相比，前者在小溪开始处的侵蚀明显更快。该数据集用作确定基于过程的饱和土壤边坡侵蚀模型中的侵蚀参数的基础。
更新日期：2020-07-22
中文翻译：
不断饱和的斜坡上的小河侵蚀过程
饱和土壤斜坡上的小河侵蚀过程对于理解侵蚀水动力和确定小蚀模型的参数很重要。创新地创建了饱和土壤坡度，以研究小溪的侵蚀过程。通过使用通过泥沙输送能力（STC）测量确定的泥沙浓度和不同钻头长度下的泥沙浓度，对饱和土壤斜坡上的小河侵蚀过程进行建模。在不同的坡度梯度（5°，10°，15°和20°）和单位宽度流速（0.33、0.67和1.33×10 -3 m 3 s -1 m -1）下进行实验室实验）以测量饱和土质边坡上不同钻长（1、2、4和8 m）的沉积物浓度。沿饱和小河测得的沉积物浓度范围为134.54至1,064.47 kg / m 3，并且与非饱和小溪相似，小溪长度也呈指数增长。非饱和土壤小溪中的小溪侵蚀过程模型适用于饱和土壤小溪中的小溪侵蚀过程模型。但是，随着小溪长度的增加，小溪流的沉积物浓度增加得更快得多，在STC处达到相当高的水平。饱和的土壤小溪比不饱和的小溪多出120–560％的沉积物。此外，与非饱和土质边坡相比，前者在小溪开始处的侵蚀明显更快。该数据集用作确定基于过程的饱和土壤边坡侵蚀模型中的侵蚀参数的基础。
京公网安备 11010802027423号