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Land Biodegradation Essay

990 Words4 Pages

According to many sources, Sydney 's number-one environmental problem is land degradation. Land degradation is caused by many seriously damaging environmental impacts. The most serious things include overgrazing by sheep, rabbits, soil nutrient exhaustion, soil erosion, man-made droughts, weeds, misguided governmental policies and salinization. In Sydney, the people kill, ruin and pollute more than half of all earthbound animals and plant species, sustainable freshwater supplies and soil. Deforestation can occur quickly especially in the Blue Mountains, through fire or clear-felling to make way for plantations, crops or pasture. Deforestation can also happen gradually over time. For example, as a result of unsustainable logging or climate change. …show more content…

In Sydney, there is an alarming amount of people driving to work and as a result creates congestion and a lot of air pollution. In the last few years there has been an increased amount of people people catching public transport which decreases the traffic as there are multiple people on each form of transport. More people have been using transport since the Opal system has been implicated. The Opal system helps to create an easier trip as you can top up you card online and not worry about bringing money or having multiple tickets to travel on transport. Graph 2 also shows how many cars each person with a license owns. Even Though there looks like there is a lot of people without a car the majority of these people are teenagers and are under the age of 18. Majority of the people in this age category are just borrowing a parent 's motor vehicle as it is too expensive to buy. With an uprising in motor vehicles many people are averaging having more than 1 motor vehicle which leave pollution and our air and causes congestion. In the early prehistory of Australia especially in Sydney the Indigenous Australians used fire-stick farming which was used as a form of land clearing. Consequently, this caused long term changes to the ecology. With the introduction of the European colonisation land clearing continued on an enormous scale for agriculture. Mainly in the area of

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