Estimating Temperature Effects on Water Flow in Variably Saturated Soils using Activation Energy
Fucang Zhanga,b,
Renduo Zhang*,a,b and
Shaozhong Kanga,c
a Key Lab. of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Northwest Science and Technology Univ. of Agriculture and Forestry, Yangling, Shaanxi, 712100, P.R. China
b Dep. of Renewable Resources, Univ. of Wyoming, Laramie, WY 82071-3354, USA, Also at Dep. of Water Resources, Wuhan Univ., Wuhan 430072, P.R. China
c College of Water Resources and Civil Engineering, China Agriculture Univ., Beijing, 100083, P.R. China
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Fig. 1. The linear relationship between log of the discharge (ln Q) of steady-state saturated flow vs. 1/T (T: the absolute temperature).
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Fig. 2. The linear relationship between log of the sorptivity (ln S2) for the vertical infiltration vs. 1/T (T: the absolute temperature).
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Fig. 3. Predicted and measured cumulative values of horizontal infiltration at temperatures of (A) 20 and (B) 35°C for Soil S1.
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Fig. 4. Predicted and measured cumulative values of horizontal infiltration at temperatures of (A) 20 and (B) 35°C for Soil S3.
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Fig. 5. Predicted and measured cumulative values of vertical infiltration for soils of (A) S1 and (B) S3 at temperature 20°C.
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Copyright © 2003 by the Soil Science Society of America.
