Shallow interceptor drains can reduce waterlogging on sloping sites. Such drains will more than pay for themselves from the increased crop yield. Recent work has shown that these drains also decrease salinity so that they are cost-effective in the long as well as the short term.
McFarlane, Don and Cox, Jim
"Seepage interceptor drains for reducing waterlogging and salinity,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 31
, Article 9.
Available at: http://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol31/iss2/9