Background Info
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<strong>Background</strong> <strong>Info</strong>: Springbrook National Park is listed as a world heritage site as it is a<br />
remanet of the north side of a volcano shield that was believed to dominate around 23<br />
million years ago. The shield rapped around all of the Tweed Valley with Mt Warning being<br />
the centre. On the December of 1994 UNESCO (World Heritage Committee) Committee<br />
officially declared that the Gondwana Rainforest this area includes places like Lamington<br />
and Springbrook National Parks and the main parts of Mt Barneys range. In the past 200<br />
years 3 quarters of all Australian rainforests have been destroyed. However, the Gondwana<br />
region has continued to survive and will for many years to come as it is home to over 1700<br />
different types of flowering plants and over 500 different vertebrate animals.<br />
The Undisturbed and The Disturbed Site: On the day of the testing, the results were<br />
recorded in two different places (An undisturbed site and a disturbed site) to compare<br />
between the different areas of the Mt Cougal area the first being an undisturbed site off track<br />
from the normal route and the second being a disturbed site with human impacts<br />
Undisturbed site<br />
At the undisturbed site, there was a small stream running with large rocks no canopy cover<br />
over the stream and dense forest surrounding the area and abundance of small seedlings and<br />
saplings. The time taken to conduct the measurements was 50 minutes, there was a total of 25<br />
seedlings and 17 saplings with leaf litter just under half of the quadrat. The three trees in the<br />
4 metre by 4 metre square quadrat were 2.31 metres, 2.12 metres and 3.08 metres with an<br />
average height of 2.5 metres tall. The average air temperature was 17.1° C, the average<br />
ground temperature was 14.04° C and the soil pH was 5.7. At this site, the average light<br />
intensity 602.1 LUX, an average 70% canopy cover and an average of 42.50% ground cover.<br />
The human impacts found in the area were beer bottles, thongs, plastic wrappers and pink<br />
plastic markers on trees. The abiotic factors in the include soil, water, rocks, temperature and<br />
humidity.<br />
Disturbed site<br />
The disturbed site consists of an open area with no canopy surrounding an abandon drilling<br />
station with tall trees and closed canopy to the side with few seedlings and saplings. There<br />
was a total of 15 seedlings and 12 saplings with leaf litter covering just of half of the quadrat.