DOUGLAS M. JOHNSTON is chair of the Department of Community and Regional Planning and of the Department of Landscape Architecture at ISU wrote a great article about the Iowa floods*
During and after any catastrophe, many will review the events and ask: Why did it happen and what can be done to prevent it? The ongoing flooding in Iowa is no exception.
…….we often fail to remember is that water flows downhill. It comes from somewhere, and it goes somewhere. Anything we do that affects the flow of water will have an impact further downstream. Prairie and forest are good at capturing rainfall. Tile-drained farm fields, roofs, roads, and parking lots are less so. With fewer wetlands, prairies and forest to slow runoff or prevent it, the same rain event will send more water downstream faster.
Read more @ the SOURCE: DesMoinesRegister.com – Guest column: Don’t expect simple solutions to complexities of flooding – The Des Moines Register.