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Basic Earth System Analysis

Black Saturday Bushfires

The Bushfires

The Atmosphere

The Lithosphere

How do the bushfires

effect....

Fire's produce Carbon DIoxide and Carbon Monoxide. In a normal house fire the effect of these gases is minimal because the amount of gas produced is not big enough to make any impact. Bushfires as big as the Black Saturday fires have a large impact and largely contribute to the greenhouse effect.

In Victoria, Australia around 14 fires were ignited on and around Saturday the 7th of February, 2009. Black Saturday is known as the bushfire with Australia's highest ever death toll. There were 173 deaths and 414 people were injured around Victoria.

In large bushfires such as the Black Saturday Bushfires rocks can split and break down due to the extreme temperatures.

  • The Atmosphere
  • The Lithosphere
  • The Hydrosphere
  • The Biosphere

Bibliography

Facts

The Hydrosphere

The Biosphere

https://sites.google.com/site/geographicalhazardsbushfires/home

http://www.zephyrus.co.uk/firedispersal.html

http://www.blacksaturdaybushfires.com.au/

The temperature changes caused by the fire triggered erratic weather and rainfall.

Bushfires can cause erosion around streams and rivers letting sediment into the water negatively affecting the quality of the water.

  • The Black Saturday Bushfires were so big that the smoke reached the Antarctic
  • The weather recorded on the 7th were some of the worst bushfire conditions ever recorded
  • The heat produced in some of the fires was enough to kill people 400 m away
  • During the fires 2100 homes were destroyed
  • There were 5000 firefighters coming from Australia, New Zealand and the US.

Because the smoke from the fire blocks sunlight, the plants in the area have less light for photosynthesis and therefore aren't as healthy.

Bushfires can actually help some plants such as the serotinus pine. The pine cone only opens and produces seeds when the fire reaches a certain temperature.

Water Catchment in Melbourne after fires.

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