Conservation Priority: Medium
Area in yellow is plantation area destroyed by January 2013 fires. The entire plantation (1050ha) LEGL93-12 has been destroyed by the fire, with approximately 60ha of a neighbouring GTFP plantation burnt. The fire of of January 7 had also destroyed ~6000 of the Lower Glenelg National Park and farmland and threatens the communities of Drik Drik and Dartmoor. How did this fire manage to start in pine plantations? Who is responsible?
Sep 14: 18 months after the fires, the plantation that burnt is still being salvage logged.
Photo looking south: Stewart Beaton/DSE
January 4 2013: Hundreds of hectares of Kentbruck plantation and neighbouring Lower Glenelg National Park goes up in smoke: Image courtesy Fairfax media (Warrnambool Standard)
January 5 2013: "The fire, which started on Friday, has burned through the Kentbruck, Lower Glenelg National Park area, including 1000 hectares of commercial pine plantation, valued at over $2 million".
Plantation within S.E.A.S Sapfor (Auspine) area of supply.
Plantation located in Glenelg Water Supply Protection Area
May 04: Prolific regeneration of native and weed species has occurred in this plantation post logging. This photo shows Kangaroo Apple (Solanium) and Coast Wattle (Acacia longifolia). If these plantations outcompete the planted pine, aerial application of herbicides such as Hexazinone may soon eventuate. Hexazinone can pollute groundwater especially if it is used on sandy soils.
Aerial View of Kentbruck Plantations looking west adjoining Lower Glenelg National Park. Photo dates from approximately 2001.
This plantation was very likely to be aerially sprayed with 2,4,5-T between 1968 and 1977. The Dioxin TCDD may still exist in soil in this plantation. For more historical data on 2,4,5-T click here. For more information concerning the continuing health crisis concerning 2,4,5-T please forward to here.
Herbicides Used by Hancock in Pine Plantations South Western Victoria
May 04: Prolific regeneration
of Acacia longifolia (Coast Wattle) has occurred in this plantation
post logging. Aerial application of Hexazinone
may eventuate at this location to kill this and other 'pine competitors'.
"Groundwater: "In south-western Victoria the Otway Basin stretches from the South Australian border almost to the west of Geelong. It contains older sediments of Upper Cretaceous and Lower Tertiary age, up to 2000 m in thickness. These include four sand aquifers and two limestone aquifers. The sand aquifers of the Wangerrip Group are confined over most of the Basin and their recharge zones are located on the margins of the Otway Range in the east and the Merino Tablelands in the West. The groundwater moves towards the coast, increasing in salinity along its floorpath . . ." p268 State of the Environment Report 1988 Victoria's Inland Waters. Office of the Commissioner for the Environment.
"Shallow aquifers in the Glenelg River Basin occur in four main geologic units . . . The third unit is a Newer Volcanic aquifer which lies along much of the Basin's southern boundary, particularly in the east. This fractured rock aquifer is composed of basalt, scoria and tuff. The fourth unit is composed of dune sand and beach deposits extending from the south-west corner of the Basin up to the western boundary and along the northern boundary. It is known as the Bridgewater formation.
A deep aquifer system exists in the south-west of the Basin and extends to the top of the western boundary and half-way across the southern boundary. This sand aquifer, which is significant as a water source, occurs within the Wangerrip Group.
Generally, groundwater quality in the Basin decreases towards the north where it is saline. A large reserve of fresh water is held in the north-east corner of the catchment and in the south-west the water is of marginal quality . . ." p295 Water Victoria A Resource Handbook - Department of Water Resources Victoria 1989.