Wetlands and Environmental Flows. By: Dylan Miszkowiec and Joey Radosevic. Definition and Classification of the Resource. Wetlands may be defined as areas that are permanently or temporarily covered by fresh, brackish or saline water.
By: Dylan Miszkowiec
Macquarie MarshesGeographic Characteristics
There is over 7,000 wetlands in the Murray Darling Basin, covering approx. 222,000 hectares.
The water is used to provide us with another form of resources e.g. Food, cotton etc.
Environmental flows have been allocated to areas in need of more water.
Wetlands support more than 50,000 birds throughout the Murray darling basin.
Floodplains support more then 100,000 birds.
As much as 50% 0f the area of wetland that existed 200 years ago has been lost due to irrigational purposes.
The annual outflow of the river system has been reduced from 13,700GL - 4,900GL.
The constant use of wetlands has degraded them.Positive and Negative impacts of the resource use