Chloride transport in undisturbed soil columns of the loess Plateau

ISWC OpenIR > 水保所知识产出(1956---)

	Chloride transport in undisturbed soil columns of the loess Plateau
	Zhou Beibei; Jiang Yanli; Wang Quanjiu; Wang, QJ
	2011
发表期刊	AFRICAN JOURNAL OF AGRICULTURAL RESEARCH
卷号	6 期号:20 页码:4807-4815
摘要	In 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.
关键词	Breakthrough Curves Convection Dispersion Equation Two-region Model Two-flow Region Model
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/4685
专题	水保所知识产出(1956---)
通讯作者	Wang, QJ
推荐引用方式 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,&Wang, QJ.(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.