A great deal of attention has been given to wetlands in recent years. Research suggests that natural and/or constructed wetlands may play a valuable role in flood flow moderation, sediment retention and stabilization, and waste water treatment while providing habitat for game and nongame wildlife. Only within the last 10 years have wetlands received serious attention in the treatment of acid mine drainage (AMD).
Ditsch, David C. and Karathanasis, Anastasios D., "Wetlands: Mechanisms For Treating Acid Mine Drainage" (1994). Agronomy Notes. 47.