Coastal Management Long Reef Notes Geography

1411 words 6 pages
Coastal management
The aim of this report is to investigate Long Reef and Collaroy Beach’s coastal management.

Sand Dunes
The Importance of Vegetation
Sand dunes are a valid indication of the quality of the soil and the surrounding ocean. When vegetation is established in sand dunes, it stabilises it- i.e. gives the dunes structure. This structure helps prevent erosion by using the plant life to trap the sand. Without these plants (and ultimately the sand dunes) sand will be subject to many natural forces without protection, meaning any major storm could theoretically remove large amounts of sand from the beach with no natural means of replenishing it. Long Reef Beach is commendable in the amount of vegetation it has produced.
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By repurchasing properties, these developments can then be demolished and can then be used as primary dunes for Collaroy Beach. By establishing the primary dune, Collaroy Beach can then begin trapping sand and will not be as prone to erosion, as vegetation will be stabilising the area. This management plan may not be considered economical in the short-term, however it can potentially save tax payers millions of dollars in the long run as sand nourishment will no longer need to be implemented, or at the very least occasionally. It is the best option for the environment as well, allowing flora and fauna to thrive in a previously uninhabitable area. In terms of aesthetics it eventually depends on the individual, as many are used to seeing the beach without dunes and many perceive Collaroy Beach as your standard beach. However, more plants provides more biodiversity and more scenery for those whom wish to enjoy the beach.

Concluding statement
Due to natural processes, Collaroy Beach is progressively losing its sand, which is presently being replenished periodically using sand nourishment. The Warringah Council should continue its sand nourishment; however it should not look to it as a permanent solution. Warringah Council should be developing methods of introducing more vegetation in the area, so sand can be trapped over time, overcoming longshore drift. It should be noted that Long Reef beach can be considered an exemplary