http://www.seipub.org/ijast/paperInfo.aspx?ID=8996
Dryland salinity recharge from agricultural land has been identified as the main source of salinization in the Berg river basin (Western Cape, South Africa), which represents a challenge to water users and water quality managers. The aim of this study was to characterize and quantify regolith salt storage in a small catchment (~ 20 ha) representative of the saline environment and drier bio-climatic conditions of the mid- and lower reaches of the Berg river basin, where storage and potential discharge of salts are likely to be the greatest. Electromagnetic induction measurements with an EM-38 meter indicated that salinity in the landscape is driven by the topo-sequence, anti-erosion contours act as barriers to water and salt fluxes, highly saline scalds are associated with convex hillslopes, and soil salinity is lower at the end of the rainy winter season compared to that at the dry summer. Resistivity tomography measurements tak