CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Micro-characteristics of soil aggregate breakdown under raindrop action
Li, GL; Fu, Y; Li, BQ; Zheng, TH; Wu, FQ; Peng, GY; Xiao, TQ
2018
Source PublicationCATENA
ISSN0341-8162
Volume162Pages:354-359
Subtype期刊论文
AbstractRaindrop 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.
KeywordParticle-size Splash Erosion Subtropical China Interrill Erosion Seal Development Slope Gradient Loess Plateau Stability Rainfall Impact
DOI10.1016/j.catena.2017.10.027
Indexed BySCI
Language英语
WOS IDWOS:000423004800033
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29070
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.Li, GL
2.Fu, Y
3.Li, BQ
4.Zheng, TH
5.Wu, FQ
6.Peng, GY
7.Xiao, TQ
Recommended Citation
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.
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