At
another level, physical planning legislation may authorise or require local authorities to designate
certain wetlands (and possibly buffer zones, protection strips and even ecological corridors as well)
in the most protected zones of local planning documents. This degree of spatial integration tends
to be reached only when there is political commitment to wise use and nature conservation
authorities are closely involved in the planning process and with local authorities. At yet another
level, special legislation may confer safeguards on wetland areas by providing for integrated
planning and management of river basins and/or coastal areas.