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Answer
== Dryland salinity is a major problem in the Macquarie catchment, with over 3850 ha of land affected. Dubbo also has problems with urban salinity due to excessive watering, stormwater runoff and agricultural activities in the surrounding areas. == Across different parts of the catchment there are increasing problems with contamination of the waterways from nutrients, pesticides, bacteria and metals.
Some parts of the catchment have high phosphorus and nitrogen levels, thought to be caused by nutrient input from grazing animals.
Chemicals used on cotton crops may flow into the waterways, causing concern. == Wind and water erosion is a serious problem. Large areas of the catchment suffer from stream bank, gully and sheet erosion.
Wind erosion generally occurs during dry periods on cultivated lands or on grassland and shrubland that have been overgrazed and are bare of vegetation. == It is estimated that over 3000 km of waterways in this catchment suffer from cold water pollution from water released from Burrendong Dam. The addition of this colder water can make it too cold to allow native fish to breed and reduce the growth of plants and algae important for aquatic food chains.
What else can I help you with?
How big is the Macquarie River?
The length of the Macquarie River is around 626 km in total.
Into which river do the bogan and the macquarie flow?
darling river
Into what harbor does the Gordon river flow?
The Gordon River flows Westward into Macquarie Harbour on the West Coast of Tasmania.
Name 4 rivers in New South Wales?
* Lachlan River * Darling River * Bogan River * Murrumbidgee River * Macquarie River * Namoi River (not Naomi River) * Hunter River * Parramatta River * Gwydir River
Where did Charles Sturt go on his expedition to the Darling River?
Captain Charles Sturt discovered the Darling River whilst tracing the Macquarie River. Following the Macquarie inland, he came to a smaller river, the Bogan, which, due to the drought, was merely a series of waterholes. Sturt followed the Bogan downstream until he arrived suddenly at what he described as "a noble river", on 2 February 1829. This was the Darling, which Sturt named after Governor Darling.
How did the Darling River get its name?
The Darling River was named by Charles Sturt in 1829. During an expedition in which he traced the Macquarie River, Sturt arrived suddenly at what he described as "a noble river". This was the Darling, which he named after Governor Darling.
What are the five inland waterways Australia?
Australia is known to have quite a number of features including deserts, lakes and rivers. Some of its waterways include river Macquarie, river Lachlan, river Diamantina, river Murrumbidgee, and river Darling.
Why did Governor Macquarie order John Oxley to go on an expedition?
It depends on which expedition is meant.Governor Macquarie was puzzled about the direction Australia's rivers flowed. Australia's rivers are unusual because they flow away from the coast rather than towards the coast. On all other continents, the rivers flow towards the sea. Therefore, Macquarie ordered John Oxley to follow the rivers of inland NSW to find out why they flowed away from the coast instead of towards the coast.In 1817, Oxley was sent by Governor Macquarie to follow the Lachlan River, to determine where it finished. Oxley was unable to complete this journey, as his way was barred by huge wetlands.As the Lachlan River expedition was unsuccessful, in 1818, Oxley was then sent to follow the Macquarie River. Oxley had the same problem.
Why did Charles Sturt choose to take on the exploration of the Macquarie River?
The exploration of the Macquarie River was undertaken by Charles Sturt in an attempt to solve the mystery of the westward-flowing rivers. Because they appeared to flow towards the centre of the continent, it was believed that they emptied into an inland sea, and Sturt's exploration was to either prove or disprove this fact.
What is the postcode for Macquarie Centre?
The postcode for Macquarie Centre is 2113.
What is MGPA?
Macquarie Global Property Advisors (Macquarie Group)
When was Macquarie Lighthouse created?
Macquarie Lighthouse was created in 1883.
