Booran 2 (B2)

	Area: 3 sq. km (-%) Wave action on Lake Wellington has deposited sand on the eastern shore. A low-angle beach has formed there with a beach ridge. now partly reworked by wind into a low, discontinuous, frontal dune and a higher, continuous, rear dune. The rear dune tends to be about 3 times higher than the front dune, but it does not appear to exceed 10 m in height above lake level. To the south of these parallel dunes, near the lake outlet, is a series of relict beach ridges and recurved spits. The swale between the parallel dunes is mostly narrower and drier than the swales between the beach ridges and spits. The area is mapped in Booran 2 land system. In contrast to Booran 1 land system. this was formed in a freshwater environment and is more stable.	The low foredune with Banksia serrata (saw banksia) on the eastern shore of Lake Wellington.
The soils have formed on sands and the reaction is generally slightly acidic to neutral. The dominant well-drained, sandy soils have accumulated a little surface organic matter giving a slight darkening of the topsoil. This appears to he a little more prominent on the beach ridges than on the dunes. The soils are loose, apedal and of low fertility and water-holding capacity. Consequently, they are susceptible to wind erosion and leaching of nutrients. Old blowouts are common in the dunes. The soil of the dry, interdune swale is very similar to that of the dunes. In the wet swales between the beach ridges the situation appears to he very different. Here, shallow peaty topsoils and subsoils of silty and clayey textures have developed. Undifferentiated sands occur on the beach. The native vegetation is mostly grassy open woodland I or II with closed scrub in wetter swales in the south.

CLIMATE Rainfall, mean (mm) Temperature, mean (°C) Seasonal growth limitations	Annual 500 - 800: lowest January (30 - 50), highest October (40 - 70) Annual 14: lowest July (10). highest February (19) Temperature <10°C (av.): July Rainfall < potential evapotranspiration: November – March
GEOLOGY Age, lithology	Holocene lacustrine sand deposits
PHYSIOGRAPHY Landscape Elevation range (m) Relative relief (m) Drainage pattern Drainage density (km/km²)	Beaches, coastal dunes and beach ridges 0 - 17 0 - 10 Nil 0
PRESENT LAND USE	Mostly uncleared: recreation — fishing and shooting: hush grazing of cattle (minor) Minor proportion cleared: grazing of beef cattle and sheep on native and improved pastures

A study of the land in the Catchment of Gippsland Lakes - Vol 2 - land system Booran2- cs

A study of the land in the Catchment of Gippsland Lakes - Vol 2 - land system Booran2- graph

LAND COMPONENT Percentage of land system Diagnostic features	1 40 Beach	2 30 Low foredune and higher rear dune	3 20 Beach ridges and recurved spits	4 5 Interdune swales (dry)	5 5 Swales between beach ridges and spits (wet)
PHYSIOGRAPHY Slope %, typical and (range) Slope shape	3-5,(2-7) Straight	12-16,(10-25) Straight (front): concave (rear)	3-5,(0-8) Convex, concave	<1,(0-2) Concave	<l.(0-2) Concave
SOIL
Parent material	Wind-sorted sands of lacustrine origin, probably non-calcareous
Description	Undifferentiated, relatively fine-grained sand	Greyish brown to brown loose sand grading into yellowish brown to brownish yellow sand at depth, slightly acid throughout	Very dark grey to dark greyish brown very friable loamy sand grading into brown to light grey sand subsoil, often neutral	Soils as in component 2	Single observation — black peaty topsoil over grey and yellowish brown mottled, variable textured, alkaline subsoil
Classification	Alluvial Soils Uc1.21	Siliceous Sands (pale) Uc1.21	Alluvial Soils, Siliceous Sands Uc1.41, Uc1.21	Siliceous Sands (pale) Uc1.21	Humic Gleys Um1.41/O
Surface texture	Sand	Sand	Sand	Sand	Peaty loam
Surface consistence	Loose when dry	Loose when dry	Very friable when moist	Loose when dry	Friable when moist
Depth (m)	>2.0	>2.0	>2.0	>2.0	>2.0
Nutrient status	Very low	Very low	Low	Very low	Low
Available soil water capacity	Very low	Very low	Low	Very low	High
Perviousness to water	Very rapid	Very rapid	Rapid	Very rapid	Rapid
Drainage	Poor (high water table)	Good to excessive	Good	Good to excessive	Very poor
Exposed stone (%)	0	0	0	0	0
Sampled profile number	-	-	-	-	-
NATIVE VEGETATION Structure of vegetation and characteristic species of dominant stratum (+ Predominant species)	Zoysia macrantha, sometimes with Pteridium esculentum growing higher up the beach	Grassy open woodland I of Banksia integrifolia+ (on deeper sands — mostly dunes in the north) Grassy open woodland I or II of E. tereticornis+ with or without Banksia integrifolia(on drier spits. beach ridges and swales and lower dunes) Melaleuca ericifolia dominates understorey on wetter beach ridges and spits and may form closed scrub in wet swales

Disturbance	Affected process and trend	Primary resultant deterioration			Casual activities	Primary off-site process
Disturbance	Affected process and trend	Form	Susceptibility of components	Incidence with components	Casual activities	Primary off-site process
Alteration of vegetation: — reduction in leaf area, rooting depth and/or perenniality	Reduced transpiration, resulting in increased deep percolation and leaching	Nutrient loss	1; moderate 2.3; high 4; moderate - high 5; low	Not determined	Removal of trees	Increased movement of water to groundwater.
Increased exposure of surface soil	Increased wind velocity over soil and increased detachment of sand	Wind erosion	1,2; high - very high 3; moderate 4; low	Common	Clearing, burning, trafficking by humans and vehicles.	Encroachment by sand.
Increased physical pressure on soil	Increased compaction	Structure decline	12,3; very low 4; low 5: moderate	Uncommon	Increased trafficking	-
Increased soil disruption	Increased loosening of sand	Wind erosion	1,2; high - very high 4; low 5; moderate	Common	As for wind erosion above	Encroachment by sand

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