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Chloride transport in undisturbed soil columns of the loess Plateau
Zhou, Beibei1,2,4; Jiang, Yanli1,3; Wang, Quanjiu1,4; Shao, Ming'an1,5
2011-09-26
Source PublicationAFRICAN JOURNAL OF AGRICULTURAL RESEARCH
Volume6Issue:20Pages:4807-4815
AbstractIn soils containing preferential flow paths, both water and solute can move preferentially, bypassing much of the soil matrix. The object of this study was to examine the effect of preferential solute transport in Changwu (loamy soil) soil and Ansai soil (sandy soil) containing macroporosity. Miscible displacement experiments were conducted with 5 undisturbed soil columns (19.45 cm diameter, 43.5 cm long). Breakthrough curves (BTC's) of Chloride were measured under water-saturated steady flow conditions. The data were simulated using three conceptual models. The results show that two-flow region model described the preferential solute transport much better than the two-region model and the convection dispersion equation (CDE), especially there were humps in the tailing side. Moreover, distinct double peaks were apparent with the increase of pore water velocity in a loamy soil column. In addition, high pore water velocity and small mass transfer coefficient between the two-flow regions enhanced the development of double BTC peaks.
SubtypeArticle
KeywordBreakthrough Curves Convection Dispersion Equation Two-region Model Two-flow Region Model
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedAgriculture
Indexed BySCI
Language英语
WOS SubjectAgriculture, Multidisciplinary
WOS IDWOS:000298784400019
PublisherACADEMIC JOURNALS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68112
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Quanjiu
Affiliation1.NW A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Enviroment, Xian 7100, Shaanxi, Peoples R China
3.NW A&F Univ, Resources & Environm Dept, Yangling 712100, Shaanxi, Peoples R China
4.Xian Univ Technol, Inst Water Resources & Hydroelect Engn, Xian 710048, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Beibei,Jiang, Yanli,Wang, Quanjiu,et al. Chloride transport in undisturbed soil columns of the loess Plateau[J]. AFRICAN JOURNAL OF AGRICULTURAL RESEARCH,2011,6(20):4807-4815.
APA Zhou, Beibei,Jiang, Yanli,Wang, Quanjiu,&Shao, Ming'an.(2011).Chloride transport in undisturbed soil columns of the loess Plateau.AFRICAN JOURNAL OF AGRICULTURAL RESEARCH,6(20),4807-4815.
MLA Zhou, Beibei,et al."Chloride transport in undisturbed soil columns of the loess Plateau".AFRICAN JOURNAL OF AGRICULTURAL RESEARCH 6.20(2011):4807-4815.
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