Premium
Influence of a Compact Zone on Solute Transport During Infiltration of Water
Author(s) -
Hira G. S.,
Singh N. T.
Publication year - 1979
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1979.03615995004300060041x
Subject(s) - distilled water , infiltration (hvac) , chloride , soil water , bulk density , plough , mineralogy , ion , groundwater , dns root zone , soil science , geology , hydrology (agriculture) , chemistry , materials science , composite material , geotechnical engineering , chromatography , metallurgy , organic chemistry , biology , agronomy
In most soils, continuous plowing results in the formation of a compact zone below the plowing depth. Laboratory studies were conducted to examine the effect of such a zone on the displacement of chloride (Cl ‐ ) during infiltration of water. A compact zone of 4‐ or 8‐cm thickness of 1.62 g/cm 3 or 1.80 g/cm 3 bulk density was created at a depth of 8 cm in soil columns. A surface‐applied slug of calcium chloride was leached with 4 or 6 cm of distilled water. The presence of a compact zone in the soil profile pushed the Cl ‐ peak deeper, dispersed the ions in a narrower region, and increased the peak Cl ‐ concentration. Increasing bulk density and thickness of a compact zone increased the depth of the peak Cl ‐ concentration.