What is a "wetland" for the purpose of this debate?

What is a "wetland" for the purpose of this debate?

Many formal definitions for wetlands exist, some broad, some detailed and technical. For the purpose of this debate, we want to keep it simple:

Wetlands are shallow freshwater systems - marches and swamps, as well as the margins and floodplains of rivers and lakes. Two characteristics of such wetlands carry the inherent potential for policy conflicts: On the one hand, they provide complex habitats essential to sustain biodiversity. On the other hand, they are highly amenable towater 'management' - through draining, damming and channeling.