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… confined to areas defined by politics, climate, drainage or other natural events. MERA study areas are … take into consideration the long-term effects of acid mine drainage (AMD) and the need to rehabilitate in a manner that …

… conditions in peat swamps and acid-sulphate soils Drainage leads to destruction of vegetation (and peat … Evaporation surplus in saline / alkaline lakes Outfall of drainage water into these lakes changes the water balance …