Micro-characteristics of soil aggregate breakdown under raindrop action
文献类型：期刊论文
| 作者 | Li, GL; Fu, Y; Li, BQ; Zheng, TH; Wu, FQ; Peng, GY; Xiao, TQ |
| 刊名 | CATENA
 |
| 出版日期 | 2018 |
| 卷号 | 162页码:354-359 |
| 关键词 | Particle-size Splash Erosion Subtropical China Interrill Erosion Seal Development Slope Gradient Loess Plateau Stability Rainfall Impact |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2017.10.027 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Raindrop splash is considered to be the first step in soil erosion, and it is also a contribution to such erosion. Aggregate breakdown due to raindrop splash causes crusting and soil erosion. In this study, the micro-characteristics of soil aggregate breakdown under the action of three sizes of raindrops were examined using synchrotron-based X-ray micro-computed tomography(SR-mu CT). The results showed that soil aggregate breakdown was related to the size of raindrops, was mainly caused by large raindrops during a rainfall event, and formed an enrichment zone, transition zone, and dense airtight zone of aggregates in the surface soil. The shape index and the amount of aggregate in the splashed soil was higher than in the un-splashed soil, especially for micro aggregate fragments (< 25 mu m). We confirm that the existence of large amounts of micro-aggregate fragments surrounding large aggregates in a rainfall event is a principle factor in the formation of soil surface seals and the clogging of pores. |
| 语种 | 英语 |
| WOS记录号 | WOS:000423004800033 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/29070]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Li, GL 2.Fu, Y 3.Li, BQ 4.Zheng, TH 5.Wu, FQ 6.Peng, GY 7.Xiao, TQ |
| 推荐引用方式 GB/T 7714 | Li, GL,Fu, Y,Li, BQ,et al. Micro-characteristics of soil aggregate breakdown under raindrop action[J]. CATENA,2018,162:354-359. |
| APA | Li, GL.,Fu, Y.,Li, BQ.,Zheng, TH.,Wu, FQ.,...&Xiao, TQ.(2018).Micro-characteristics of soil aggregate breakdown under raindrop action.CATENA,162,354-359. |
| MLA | Li, GL,et al."Micro-characteristics of soil aggregate breakdown under raindrop action".CATENA 162(2018):354-359. |
入库方式： OAI收割
来源：上海应用物理研究所
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