Pedosphere 10(1): 89--92, 2000
ISSN 1002-0160/CN 32-1315/P
©2000 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Column Holdup Formula of Soil Solute Transport |
| WANG Yu and ZHANG Yi-Ping |
| Department of Resources and Environmental Sciences, Northwest Science and Technology University of Agriculture and Forestry, Yangling, Shaanxi 712100 (China) |
| ABSTRACT |
| The shortcomings of the present two formulae for describing column holdup are analysed and deductions are made to find a new formula. The column holdup, Hw, described by the new formula is dimensional, and related to soil solute transport kinesis and column physical properties. Compared with the other two column holdups, Hw is feasible to describe dimensional column holdup during solute transport process. The relationships between Hw and retardation factor, R, in different solute transport boundary conditions are established. |
| Key Words: column holdup, retardation factor, soil solute transport |
| Citation: Wang, Y. and Zhang, Y. P. 2000. Column Holdup Formula of Soil Solute Transport. Pedosphere. 10(1): 89-92. |
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