Pedosphere 16(4): 444--450, 2006
ISSN 1002-0160/CN 32-1315/P
©2006 Soil Science Society of China
Published by Elsevier B.V. and Science Press
An analytical method for relationship between hydraulic diffusivity and soil sorptivity
WANG Quan-Jiu1,2, ZHANG Jiang-Hui2 and FAN Jun1,3
1 State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100 (China). E-mail:
2 Institute of Water Resources Research, Xi'an University of Technology, Xi'an 710048 (China)
3 Northwest A & F University, Yangling 712100 (China)
      A simple method was developed to relate soil sorptivity to hydraulic diffusivity and water absorption experiments were conducted utilizing one-dimensional horizontal soil columns to validate the relationship. In addition, an estimation method for hydraulic diffusivity with disc infiltrometer was developed. The results indicated a favorable fit of the theoretical relation to the experimental data. Also, the experiment with disc infiltrometer for estimating the diffusivity showed that the new method was feasible.
Key Words:  disc infiltrometer, hydraulic diffusivity, infiltration, soil hydraulic parameter, sorptivity
Citation: Wang, Q. J., Zhang, J. H. and Fan, J. 2006. An analytical method for relationship between hydraulic diffusivity and soil sorptivity. Pedosphere. 16(4): 444-450.
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