Murray Darling Basin.

By Rhiannon Nicholls 9L.

What Is The Basin?

The Murray Darling Basin is a large area in South Eastern Australia, the name comes from the two main rivers in the basin, the "Murray River" and the "Darling River".
The basin covers 14% of Australia and is approximately 1,061, 469 square kilometers of area in total and 2,995 kilometers long. The Basin extends 1,250 kilometers wide from the most easterly point at Killarney, near Warwick in Southern Queensland to the north west of Goolwa South Australia. The states formed by the basin are Queensland, New South Wales, Australian Capital Territory, Victoria and South Australia. The environment of the basin is mainly river channels, lakes and wetlands such as billabongs, marshes, mudflat mangroves, and a mountain range that runs eastern side of the basin called the great dividing. In total the basin has over 30,000 wetlands! The basin is a warm, sub-tropical environment. The temperature rangers through cooler, humid to the east.

Stages Of The Water Cycle!

  • Evaporation: This happens when a liquid is heated, the sun then provides heat that turns a liquid into a gas that rises into the air as water vapor.
  • Condensation: This happens during cold weather. When the temperature is lowered,  water changes from a gas into a liquid.
  • Precipitation: This is such things like rain, hail and snow. This occurs when large groups of water molecules condense come together and become too heavy to remain in the atmosphere. Clouds become heavy and gravity pulls the water down to Earth.
  • Transpiration: This is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.
  • Collection: This is when water falls back to Earth as precipitation, it may fall anywhere, such as in the ocean, rivers and lakes, this surface water. The water cycle will then begin again when the water evaporates from these collection areas.

The Water Cycle Rap Video!

The Water Cycle In The Basin.

Water is not an infinite resource, so we have to work out how best we can manage it and share it between everyone in the community. Liquid in the ocean, rivers and/or lakes becomes heated from the sun and evaporate and become a gas and rises into the atmosphere. It then condenses to form clouds which return the water to liquid state of rain, and releases back down to land, water that soaks deep into the ground is known as ground water. Although Australia is subject to more variability of climate than anywhere else in the world, this causes us to have longer droughts and more intense floods.

How Does The Water Cycle Affect The Community?

Even though rainfall may vary across the Murray Darling Basin this water plan an important part in keeping our towns, businesses and environment healthy. Rivers are important for food production because they carry the stored water for us to grow food and fibre to feed humanity. Rivers, creeks and wetlands were created by their ancestral back in the dream time. Most of their medicines and foods grew in and around wetlands. And this provides us with a lot of natural resources that help us make things that we need. School's undertake many learning units to do with water and the connection of families in the area to the river. Many students in the Murray Darling Basin look after the water also.

How Can We Look After Our Water?

  • Reuse your water as much as possible.
  • Turn off dripping taps.
  • Have short and quick showers.
  • Use water saving shower heads.
  • Water your lawn and garden when temperatures are cooler to minimize evaporation.
  • Use a broom instead of a hose to clean your driveways and such.

Effluent Essay.

Because Australia is one of the driest countries in the world water is very important and valuable, so we need to saver it as much as we can. Imagine living your normal day life without water, it would make things very difficult considering water is used throughout your entire day even if you don’t realise it, it’s used for drinking, washing hands, cleaning and more, and this is why water is so vital for humans. But not just humans, animals to and even plants, which in the end all comes back around to humans anyway.

For humans, water is a huge resource used. For a number of things such as growing food, staying hygienic, washing your belongings such as clothes, dishes and of course yourself. The human body is made up of 80% water and needs to be kept hydrated at all times, without water at all the average person could only last about 3 days, although without food we could manage for around a month if lucky.

Forgetting about humans for a moment take into consideration the animals and even plants in the environment that also need water to survive, the Murray Darling Basin is home to a large number of different plants and animals. There are at least 35 endangered species of birds, 16 species of endangered mammals and over 35 different native fish species. Unfortunately, 20 species of mammals have already become extinct so protecting the remaining species is very important.

Keeping our water clean and healthy is very important, so everyone should take some water saving idea into consideration, things such as putting tubs underneath drinking tabs and using the extra water on plants, get a water saving shower head and take shorter showers and of course remember to always turn of dripping taps.

If everyone sticks to these tips then the outcome will be very beneficial for everyone and everything in our community such as humans, plants and animals. We will all remain healthy, clean and happy.

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