Effects of rill morphology characteristics on particle size selectivity using indoor simulation experiments with two types of soil from the Loess Plateau
文献类型：期刊论文
| 作者 | Sun, Liying2; Dai, Qingyuan2 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2024-09-09 |
| 卷号 | N/A |
| 关键词 | Rill erosion Rill morphology Particle selectivity Indoor rainfall experiment Particle size distribution |
| DOI | 10.1007/s11368-024-03895-7 |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Purpose The relations between rill morphology indicators and particle size selectivity by rainfall events were investigated, providing a new perspective on the mechanism of rill morphology indicators impacting on rill erosion processes. Materials and methods Indoor rainfall experiments were carried out with three-dimensional (3D) laser scanning technique for better monitoring the rill morphological indicators, using two types of soil collected from the north part and the south part of the Loess Plateau, respectively. Results and discussions The higher degree of headward erosion is occurred on loamy clay (LC) soil from the south part of the Loess Plateau with the higher total length (6.65 m) due to the higher clay content. Higher degree of side erosion is demonstrated on sandy loam (SL) soil from the north part of the Loess Plateau with the higher mean rill width (0.09 +/- 0.00 m) due to the higher sand content. The ratios of rill width to depth do not show significant differences on two types of soil with the average value greater than 1, indicating the relatively higher degree of side erosion than downward erosion on both soils. Silt fraction is selected with much higher efficiency than other fractions in two types of soil due to the dominant silt fractions in the primary soil. Rill width (W) is the most sensitive indicator to the particle size selectivity, as both the contents of clay, silt and fine particles and the enrichment ratio of silt show significantly (P < 0.05) positive correlations with W. While, the enrichment ratio of sand fraction shows significantly (P < 0.05) negative correlations with rill maximum depth and degree of contour line departure. Conclusions The differences of rill morphology indicators on two types of soil slope mainly depend on soil texture and the development processes of rills. |
| WOS关键词 | EROSION PROCESSES ; INTERRILL EROSION ; SLOPE GRADIENT ; RAINFALL INTENSITY ; WATER EROSION ; FLOW ; TRANSPORT ; ENRICHMENT ; IMPACTS ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS记录号 | WOS:001309286500001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/207903]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Sun, Liying |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Liying,Dai, Qingyuan. Effects of rill morphology characteristics on particle size selectivity using indoor simulation experiments with two types of soil from the Loess Plateau[J]. JOURNAL OF SOILS AND SEDIMENTS,2024,N/A. |
| APA | Sun, Liying,&Dai, Qingyuan.(2024).Effects of rill morphology characteristics on particle size selectivity using indoor simulation experiments with two types of soil from the Loess Plateau.JOURNAL OF SOILS AND SEDIMENTS,N/A. |
| MLA | Sun, Liying,et al."Effects of rill morphology characteristics on particle size selectivity using indoor simulation experiments with two types of soil from the Loess Plateau".JOURNAL OF SOILS AND SEDIMENTS N/A(2024). |
入库方式： OAI收割
来源：地理科学与资源研究所
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