Sunday, March 13, 2011

9.1 Questions

9.1 Questions

1. What is meant by the term "Urban Sprawl"? The uncontrollable spread of urban development into neighbouring regions.
 2.What is meant by the term "Urban Consolidation"? Land within an existing city's boundary is developed with high-rise apartments complexes, townhouses and villa developments.
3.What is meant by a highly urbanised country? Where the majority of the population lives in urban areas.

4. List three statistics that suggest Australia is a higly urbanised country?  Has a high population density, not tolerable conditions apart from urban areas and most employment is in the major centres.
5.What factors have influenced the location of Australia's capital cities? A high population density, a high proportion of the population working in manufacturing and/or professional or service related industries and they are centres of business, trade, tourism, entertainment and finance.

6.What is popultion density and how is it related to urban sprawl? The number of people living per unit of an area and it is related to urban sprawl as it shows how many people live in each region.

7.How do Australian cities compare to other cities in the world in terms of their population density?  They have very small population density compared to many other cities around the world such as Cairo or Paris.
8.Describe the advantage, in terms of the provision of infrastructure, urban consolidation has over urban sprawl? It shows that you can have a dense population at a such a small area as in high-rise apartments. More facilities can be available but using less space.

9.How have urban planners responderd to the issue of urban sprawl in Australia? Urban planners have had to be innovative in their design of apartments and new estates to manage the impacts of population growth in cities

10. a) Which Australian City covers the greatest land area? Melbourne

b) Describe how population density is calculated? It is calculated by dividing population by land area

c) Rank Australia's cities in terms of their population density . Sydney, Melbourne, Adelaide, Wollongong, Perth, Gold Coast, Newcastle, Canberra, Brisbane, Gosford

11. Discuss the opinions the residents in the detatched housing in the foreground might have to the apartment buildings being constructed. What impact will the construction have on their community. The construction will have a large impact as it will greatly oveshadow the smaller houses around the large apartment developments. They will cause about 75% increase in the number of people living in that area. It will also cause shadowing over the smaller houses as the apartment buildings are so large and bulky.
12. Discuss the advantages and disadvantages of living in a detached style housing estate compared to apartment living.  A detached house will be better to live in as you have more room to go around and more freedom than compared to an apartment building where you are cramped into a little room with about 100 other people in the same building. It allows there to be more space and make people less stressed as it has more freedom.

Urban Renewal Vocab

Urban Renewal Vocab


Aesthetics - The appreciation of, and sensitivity towards, works of art, designs, products, objects or artifacts. An example is the aesthetics of a building. This example relates to the word as people's feelings and mindset change around the relative looks of a building, inside and outside. If its a warm, colorful and well presented building, people will feel more at home and more comfortable. If its a run-down, rotting building, people will be anxious and uncomfortable.

Safety - The condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types or consequences. An example is OH&S regulations. OH&S regulations ensure the wellbeing of a person in the outdoors or the workplace. This relates to safety as the person would be safe from most types of harm, especially physical

Slums - A district of a city marked by poverty and inferior living conditions. An example is a third world area or overpopulated city such as Mumbai. Mumbai's living conditions include 55% of people living in a slum within a 6% area of Mumbai's living space. Slum growth rate is much higher than urban growth.

Decay - The organic phenomenon of rotting. A badly maintained house is an example of decay. This relates to the word as a house that isn't maintained properly would have termites, fungus, collapsing supports and items. This would be uncomfortable for the resident

Reconstruction and renewal - Turning an area to become hospitable or able to be cultivated. A slum would be an example as it would have to be renewed of its waste, decay and poor living conditions to be made properly hospitable and cultivated.

Transport - Moving something or somebody around from one place to the other. An example is public transport. This allows people to catch buses, ferries or trains to get from one place to another easily


Suburbanization - A term used to describe the growth of areas on the fringes of major cities. It is one of the many causes of the increase in urban sprawl. An example is Surry Hills, where the growth of population in that area has increased greatly over the years. In this case, there was no urban sprawl and the area has been increased in value and average income of each resident


Environmental Factors - Factors in the environment that may have an effect on our development or growth eg diet, atmospheric pollutants, cigarette smoke, preservatives, X-rays. These are linked as they would change the way people would consider about living or going to an area. E.g. Going to King's Cross at night or going to Hornsby is clear example as many people would rather Hornsby because of King's Cross' reputation.


Light and Sound - Factors which are technically environmental as they affect the outlook of an area greatly. An example is urbanization and developing of technology. As technology and vehicles such as trains are introduced or used more often, would create much more sound than a regular area with no trains. Light would be a factor as lighting or the brightness (sunlight) of an area would affect people's moods and feelings about that particular place


Sunday, March 6, 2011

7.8 Dune Revegetation at Stuarts Point

7.8 Dune Revegetation at Stuarts Point  
1. Name and locate the coastal dune management area discussed in this unit.
The area discussed in this unit is Stuarts Point. Stuarts Point is located at the mouth of the Macleay River just south of Grassy Head headland and North of Shark Island and South West Rocks. 


2. Using the material in the unit, construct a timeline that highlights the changes in the Stuarts Point sand dune ecosystem
. 
1893
-
A large flood opened up a gap for the Macleay River at South West Rocks causing the original mouth of the Macleay River to close due to build up of silt and lessen in flow. 
Early 1900's
- The gap closed allowing cattle to graze along the dune barrier system. Eventually the vegetation was lost and on three consecutive occasions of heavy storms the dunes were drowned. The idea of the dunes being lost caused action from the community as there was threat against some property.
1965
-
After approaching the Soil Conservation Service of New South Wales for advice and assistance, they provided native plant seedlings to what was going to be the start of the revegetation program for Stuarts Point. Unfortunately, this scheme failed in August due to cattle grazing. 
1970
-
With all the organisations working together, they developed a scheme that would re-establish the dunes in three parts. They would have a primary dune consisting of grasses and creepers, a secondary species consisting of shrubs and short-lived trees and a tertiary species consisting of long-lived trees. 
Today
-
It continues to be a success today with the plan still intact and very few issues. 

3. Describe the role of the local community in managing the sand dune area.

The community had a large role in making the management of the sand dunes successful. They had the responsibility to keep on the walking tracks, keep litter to a minimum and some people from the communities even volunteered.  Their involvement was a key area of the re-establishment of Stuarts Point. 

4. Why is the sand dune area important to the people of Stuarts Point?
The dune area is very important to the the people of Stuarts Point. Without it, some properties would be lost making it almost crucial to have the dunes in place. 

5. Using 7.35 describe the natural vegetation succession on sand dunes.

The sand dunes are built up of three separate and different plant types.  The first section being made up of grasses and creepers that trap dry sand in the frontal dunes and reduce the sand and spray onto dunes behind it. The second section is made up of  shrubs and short lived trees that are highly adapted prolific re-seeders, fast-growing plants. Finally the third section is made up of long-lived trees that are permanent, highly interdependent, surviving in protection of dune and secondary species. 

6. Explain why vegetation is so important in stabilising sand dunes.
 
Vegetation is important in stabilising sand dunes as it stops the wind from blowing the sand away and keeps the sand firm from being washed away by long shore transportation. 
7. What impact did cattle grazing have on the sand dune area?
Cattle grazing meant that the vegetation was lost and therefore the were no longer any plants to keep it firm/strong. 

8. Describe the changes to the sand dune area that would have occurred after cattle grazing. Identify the geographical processes that would have been altered as a result of the removal of vegetation from the dunes.
 
The sand dune would have become less dense or firm and there would be great loss of sand due the the natural process of long shore transportation. 


9. Identify the groups involved in the rehabilitation program.

The groups involved in the rehabilitation of the sand dune were the Department of Lands, the Department of Public Works, the Macleay Shire Council and he Soil Conservation Service of New South Wales. 

10. Outline the stages involved in the management program undertaken to re-establish the coastal vegetation.
 The stages taken to re-establish the coastal vegetation included; using a tractor to form a small foredune, then they planted trees along the river band, then they planted the native seedlings between the foredune and the river band and finally once the plants were established coastal tertiary species. 


12. Use maps to explain the geographical process that would have caused the river mouth to silt up.
 
The geographical processes that would have caused the Macleay River to silt up include; long shore transportation from the southern parts of the beach as well as wave refraction because the beach faces east. 

13. Evaluate the success of the revegation program in the following areas:
a) Stabilising the sand dunes. 
The stabilising of sand dunes through revegetation was an enormous success as the sand dunes are still standing strong. By using a multi-part system they made a successful stabilised dune. 
b) Protecting the Macleay River ecosystem.
The success of protecting the Macleay River ecosystem was very true, they managed to replant native bushes and trees without causing harm to the dune system. They only issue was that Bitou Bush, a toxic weed that spread all of the fore and hind dunes. 
c) Benefiting groups from the local community. The community benefited immensely from this project. They now had a clear pathway which occasionally needs maintenance and a sand barrier to protect some properties.