Description
The marshes consist of a system of freshwater channels and streams, some of which are permanent following construction of water regulation devices, with semi-permanent and ephemeral swamps and floodplains. The extent of the marshes varies according to the extent of flooding. The historical maximum flooding of 4,780 square kilometres (1,850 sq mi) was recorded in the mid 1950s; since then flooding has become both less frequent and less extensive. Most of the area covered by the marshes is used as rangeland or pasture; some 10% is protected in the Macquarie Marshes Nature Reserve. Among the variety of vegetation types supported by the marshes are River Red Gum forest and woodland, extensive beds of Common Reed, and meadows of Water Couch. Daily temperatures in the area vary from about 4 °C (39 °F) in July to 36 °C (97 °F) in January, with an average annual rainfall of 300 millimetres (12 in) to 400 millimetres (16 in).
Read more about this topic: Macquarie Marshes
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