What are wetlands?
Wetlands are areas where water usually covers the soil for varying periods of time during the year. Six per cent of the New South Wales landscape is wetlands—estuarine wetlands, seagrass, freshwater inland billabongs, ephemeral lakes, claypans and salt lakes.
Wetlands play an important role in keeping rivers and estuaries healthy and productive. In fact, they are among the most biologically productive places on earth providing habitat for a variety of plant and animal species. Many migratory birds depend on Australian wetlands for their survival.
How may an artificial wetland differ from a natural wetland?