text: By raising the water table, after damage has been inflicted due to over-intensive drainage, the soils can be restored.
  The following table gives an example.
  Drainage and yield of Malaysian oil palm on acid sulfate soils (after Toh Peng Yin and Poon Yew Chin, 1982)<br>
  Yield in tons of fresh fruit per ha:
  Drainage depth and intensity were increased in 1962. The water table was raised again in 1966 to counter negative effects.
  In the "millennium drought" in the Murray-Darling Basin in Australia, exposure of acid sulfate soils occurred. Large scale engineering interventions were undertaken to prevent further acidification, including construction of a bund and pumping of water to prevent exposure and acidification of Lake Albert. Management of acidification in the Lower Lakes was also undertaken using aerial limestone dosing.