La Perouse Field Report Geography
La Perouse field report
Earth and Environmental science - Angus Kwan
The area of La Perouse is a place featuring incredible landscapes, historical sites that has significant natural and cultural heritage to Australia. In this report i will be conducting research and primary investigation of the following topics in the coastal area of La Perouse and Botany Bay.
• Geological features and history that it provides
• The type of soils present how it effects vegetation.
• The dominant flora and fauna present in the area
• impacts of humans on the local abiotic and biotic environment
• European, Aboriginal impacts on local environment and effects
The area is home to remarkable landscapes, rock formations, flora and fauna that were recorded by the …show more content…
Columnar Sandstone can be formed in many different ways but requires volcanic levels of heat to do so. This particular feature was first recorded by Captain John
Hunter second in command of the First Fleet.
On 27th February 1788 Hunter was shown the
Outcrops of Columnar outcrop by the officers of the French
Sandstone at La Perouse expedition. Hunter writes his astonishment of seeing the feature and describes it to be
"exactly(in miniature) resembling the Giants Causeway in the north of Ireland". It is a significant geological discovery and it 's description is the first account of volcanic material in the Sydney Basin and Australia.
Soil type of La Perouse:
Soil type: Sand
The parent material triassic age sandstone eroded over time from climate, organisms and topographical location.
Sandstone is made of nutrient poor, silica sands and erosion over time produced infertile soil.
Ph content: Ph is a measurement of the hydrogen ion concentration which can detect the acidic or alkaline content of soil. Ph content of 7 is neutral neither alkaline or acidic, numbers under 7 being acidic and above 7 is alkalinity. As each number increases the alkalinity or acidic content is 10 times then the previous number. A soils ph content is of significant importance …show more content…
The lack of written records makes it difficult to understand the conditions of the time.
Aboriginals changed the local environment by their practice of controlled burning off. The benefits of burning off are:
• Reduce fire hazard
• Make bush more accessible for passage and hunting
The photo depicts the Aboriginal practice of
• Promote the growth of Valued vegetation controlled burning off
• drive out animals for hunting
Fire resistant tree 's can be seen unaffected by
Effects: This burning process transformed the Australian the fire landscape with large area of forest being replaced by open grasslands. A number of flora species didn 't cope with fires as well and weren 't able to regrow in time. However fire resistant species such as grass trees, eucalyptus and acacias dominated the landscape.
European impact on the local environment (post 1788):
European 's have had a far more devastating effect on the local environment. Being agriculturalists, large pieces
Earth and Environmental science - Angus Kwan
The area of La Perouse is a place featuring incredible landscapes, historical sites that has significant natural and cultural heritage to Australia. In this report i will be conducting research and primary investigation of the following topics in the coastal area of La Perouse and Botany Bay.
• Geological features and history that it provides
• The type of soils present how it effects vegetation.
• The dominant flora and fauna present in the area
• impacts of humans on the local abiotic and biotic environment
• European, Aboriginal impacts on local environment and effects
The area is home to remarkable landscapes, rock formations, flora and fauna that were recorded by the …show more content…
Columnar Sandstone can be formed in many different ways but requires volcanic levels of heat to do so. This particular feature was first recorded by Captain John
Hunter second in command of the First Fleet.
On 27th February 1788 Hunter was shown the
Outcrops of Columnar outcrop by the officers of the French
Sandstone at La Perouse expedition. Hunter writes his astonishment of seeing the feature and describes it to be
"exactly(in miniature) resembling the Giants Causeway in the north of Ireland". It is a significant geological discovery and it 's description is the first account of volcanic material in the Sydney Basin and Australia.
Soil type of La Perouse:
Soil type: Sand
The parent material triassic age sandstone eroded over time from climate, organisms and topographical location.
Sandstone is made of nutrient poor, silica sands and erosion over time produced infertile soil.
Ph content: Ph is a measurement of the hydrogen ion concentration which can detect the acidic or alkaline content of soil. Ph content of 7 is neutral neither alkaline or acidic, numbers under 7 being acidic and above 7 is alkalinity. As each number increases the alkalinity or acidic content is 10 times then the previous number. A soils ph content is of significant importance …show more content…
The lack of written records makes it difficult to understand the conditions of the time.
Aboriginals changed the local environment by their practice of controlled burning off. The benefits of burning off are:
• Reduce fire hazard
• Make bush more accessible for passage and hunting
The photo depicts the Aboriginal practice of
• Promote the growth of Valued vegetation controlled burning off
• drive out animals for hunting
Fire resistant tree 's can be seen unaffected by
Effects: This burning process transformed the Australian the fire landscape with large area of forest being replaced by open grasslands. A number of flora species didn 't cope with fires as well and weren 't able to regrow in time. However fire resistant species such as grass trees, eucalyptus and acacias dominated the landscape.
European impact on the local environment (post 1788):
European 's have had a far more devastating effect on the local environment. Being agriculturalists, large pieces