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SW—Soil and Water: Two-component Analysis of Flow through Macroporous Soil

✍ Scribed by J.Y. Diiwu; R.P. Rudra; W.T. Dickinson; G.J. Wall

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
139 KB
Volume
78
Category
Article
ISSN
0021-8634

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✦ Synopsis

Subsurface hydrographs, obtained during rainfall simulation on 1 m by 1 m plots, were separated into macropore and micropore components by application of a dual-porosity concept and mass balance analysis. The corresponding solute concentrations in the two domains were also determined by mass balance analysis. Time-domain re#ectometry was then used to estimate similar out#ow hydrographs and breakthrough curves at an upper depth in the A horizon of the soil pro"le. The results show that the macropores contributed from 6 to 54% of total subsurface #ow and from 1 to 61% of total solute mass transported through the soil pro"le.

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