Recharge and discharge of groundwater in aquic conditions illustrated with flownet analysis

We applied a flownet analysis to several landscapes that we had examined in the past. From a flownet analysis it can be seen that water flow in wetlands acts as a recharge, throughflow, or discharge of groundwater. The long-term direction of the flow alters the type of soil that forms in these condi...

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Bibliographic Details
Published in:Geoderma 1992-05, Vol.53 (1), p.65-78
Main Authors: Richardson, J.L., Wilding, L.P., Daniels, R.B.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Hydrogeology
Hydrology. Hydrogeology
Soils
Surficial geology
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Summary:We applied a flownet analysis to several landscapes that we had examined in the past. From a flownet analysis it can be seen that water flow in wetlands acts as a recharge, throughflow, or discharge of groundwater. The long-term direction of the flow alters the type of soil that forms in these conditions. Recharge waters leach and remove soluble materials. Discharge waters tend to add materials by chemical precipitation. In flowthrough conditions, the lateral water flow changes the direction of most soil processes. Flow direction affects areas next to wetlands (the edge effect). Downward flow results in dissolution, and removal of chemical material while upward flow contributes chemical precipitates at the edge.
ISSN:0016-7061
1872-6259
DOI:10.1016/0016-7061(92)90021-X