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Specific ion effects on soil aggregate stability and rainfall splash erosion

文献类型：期刊论文

作者Liu, Jingfang4; Hu, Feinan1,3,4; Xu, Chenyang4; Du, Wei4; Yu, Zhenghong2; Zhao, Shiwei3,4; Zheng, Fenli3,4
刊名INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
出版日期2022-12-01
卷号10期号:4页码:557-564
ISSN号2095-6339
关键词Aggregate breaking Cationic non -classical polarization Soil interparticle forces Splash erosion Surface potential
DOI10.1016/j.iswcr.2022.02.0012095-6339
通讯作者Hu, Feinan(hufeinan-629@163.com)
英文摘要Soil interparticle forces can pose important effects on soil aggregate stability and rainfall splash erosion. Meanwhile, these interparticle forces are strongly influenced by specific ion effects. In this study, we applied three monovalent cations (Li+, Na+, and K+) with various concentrations to investigate the influence of specific ion effects on aggregate stability and splash erosion via pipette and rainfall simulation methods. The specific ion effects on soil interparticle forces were quantitatively evaluated by introducing cationic non-classical polarization. The results showed that aggregate stability and splash erosion had strong ion specificity. Aggregate breaking strength and splash erosion rate at the same salt concentration followed the sequence as Li+ > Na+ > K+. With decreasing salt concentration, the difference in aggregate breaking strength or splash erosion rate between different cation systems increased initially (1-10 -2 mol L-1) and later was nearly invariable (10(-2)-10(-4) mol L-1). The experimental results were well quantitatively explained by soil interparticle forces considering cationic non-classical polarization. Furthermore, both aggregate breaking strength and splash erosion rate of three cations revealed a strong positive linear relation with net force subjected to cationic non-classical polarization (R-2 = 0.81, R-2 = 0.81). These results demonstrated that different non-classical polarization of cations resulted in different soil interparticle forces, and thus led to differences in aggregate stability and splash erosion. Our study provides valuable information to deeply understand the mechanisms of rainfall splash erosion. (c) 2022 International Research and Training Center on Erosion and Sedimentation, China Water and Power Press, and China Institute of Water Resources and Hydropower Research. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY
WOS关键词FORCES ; POLARIZATION ; DISPERSION ; POTASSIUM
资助项目National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; [41977024] ; [41601236] ; [2452019078]
WOS研究方向Environmental Sciences & Ecology ; Agriculture ; Water Resources
语种英语
出版者KEAI PUBLISHING LTD
WOS记录号WOS:000875673500001
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
源URL[http://ir.igsnrr.ac.cn/handle/311030/186220]  
专题中国科学院地理科学与资源研究所
通讯作者Hu, Feinan
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess Pl, 26 Xinong Rd, Yangling 712100, Peoples R China
2.Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
4.Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jingfang,Hu, Feinan,Xu, Chenyang,et al. Specific ion effects on soil aggregate stability and rainfall splash erosion[J]. INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,2022,10(4):557-564.
APA Liu, Jingfang.,Hu, Feinan.,Xu, Chenyang.,Du, Wei.,Yu, Zhenghong.,...&Zheng, Fenli.(2022).Specific ion effects on soil aggregate stability and rainfall splash erosion.INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,10(4),557-564.
MLA Liu, Jingfang,et al."Specific ion effects on soil aggregate stability and rainfall splash erosion".INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH 10.4(2022):557-564.

入库方式： OAI收割

来源：地理科学与资源研究所

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