EG220 | EG221 | EG248 | EG249 | EG250 | EG251 | Site 147 (Rees unpublished) | Site 153 (Rees unpublished)
Geology
Neogene (late Tertiary) alluvial sediments. The Tertiary sediments form the oldest ‘terraces’ and outwash fans from the uplands. The soils close to the Eastern Highlands the soil profile often has a gravelly component, but further south the soils are finer textured, with loamy fine sands to fine sandy loams overlying clays.
This early depositional sequence has been strongly dissected over time and sands, probably windblown from the many drainage lines, cover about 10 – 30% of the area. These soils often have organic matter and iron cemented sands in the subsoil, generally from about 70 cm – 1m.
Landform
The Waygara map unit encompasses undulating rises to rolling low hills. In the late Tertiary it is most likely that the area was an alluvial plain but since then this has been dissected and subject to periods of aridity, resulting in areas of deep sand cover. Consequently the map unit may be subdivided into two components.
Original vegetation
Lowland forest.
Soils
Component 1
Most of the soils of the Waygara map unit are texture contrast soils. The surface soils are strongly to moderately acidic and range from dark greyish brown loamy sands to sandy loams generally with a bleached subsurface soil. Brown medium to heavy clays, which are generally strongly to moderately acidic, occur at a variable depth, generally before 50 cm, typically with yellowish brown, grey or strong brown mottles. The sandy surface soils have a low nutrient and water holding capacity where the organic matter levels are low and are also prone to wind erosion; see EG 221, EG 248, EG 249, EG 250, EG 251. Areas of soils with sandy clay loam subsoils may also occur (Newell and Woodruff, 1962); see Site 147 Rees (unpublished).
Component 2
About 10 – 30% of the area is covered by deep sand generally with organic matter and iron cemented sands in the subsoil. In the Newell and Woodruff report (1962) it is called the Tostaree map unit (See EG 220).
Land use
Areas which have been cleared are used for grazing, but most of the uncleared land is public land and subject to forestry or is national park.
Previous maps and reports
A reconnaissance of soil and vegetation was made of an area south of Princes Highway between the Nowa Nowa River and Newmerella comprising about 20 250 ha, as well as a detailed survey of about 450 ha was made by J. W. Newell and B. J. Woodruff in 1962. This report is titled ‘Soils and Vegetation in the Hartland Area’, Soil Survey Report 34, Soils Section, Department of Agriculture.
Site EG220
Location: Lake Tyers | Geo. Ref. 0597100E 5813000N |
Australian Soil Classification: Melacic, Humosesquic, Aeric PODOSOL | Uniform textured deep sand |
General landscape description: Undulating rises | |
Geology: Tertiary sediments | |
Site description: Simple mid slope 3%, north east aspect | |
Land use: Grazing | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara (Component 2) |
Surface soil | |||
A11 | 0 – 25 cm | Very dark grey (10YR3/1); sand; apedal, single grain structure; diffuse change to: | |
A12 | 25 – 60 cm | Dark grey (10YR4/1); sand; apedal, single grain; clear change to: | |
A2 | 60 – 75 cm | Greyish brown (10YR5/2); sand; apedal, single grain; diffuse change to: | |
Subsoil | |||
Bhs | 75 – 95 cm | Greyish brown (10YR5/2); sand; apedal, single grain; with pockets of a mainly very dark brown (10YR3/2) weakly cemented organic pan; clear change to: | |
C | 95 – 120 cm | Light brownish grey (10YR6/2); sand; apedal, single grain. | |
Key profile features
|
pH | Sodicity | Slaking | Dispersion Dry | Dispersion Remoulded | |
Surface soil (A1 horizon) | Strongly acid | Non sodic | Minimal aggregation | Minimal aggregation | Minimal aggregation |
Subsurface (A2horizon) | Strongly acid | Non sodic | Minimal aggregation | Minimal aggregation | Minimal aggregation |
Deeper subsoil (70-95 cm) | Moderately acid | Non sodic | Minimal aggregation | Minimal aggregation | Minimal aggregation |
Horizon | Depth cm | Field texture | pH water | pH CaCl2 | EC dS/m | Coarse sand % | Fine sand % | Silt % | Clay % | Field cap. % w/w | Wilt. point % w/w | PAW* water % w/w |
A1 | 0-25 | S | 5.3 | 4.2 | <0.05 | 69 | 20 | 1 | 2 | 10.6 | 5.4 | 5.2 |
A2 | 25-60 | S | 5.5 | 4.3 | <0.05 | 68 | 24 | 1 | 2 | 8.4 | 1.5 | 6.9 |
A3 | 60-75 | S | 5.9 | 4.8 | <0.05 | 64 | 27 | 1 | 3 | 6.7 | 1.2 | 5.5 |
Bhs | 75-95 | S | 6.0 | 5.0 | <0.05 | 58 | 30 | 4 | 4 | 9.2 | 2.4 | 6.8 |
Depth | OrgC# | Total N | Free Fe2O3 | Exch. Al | Exchangeable cations cmol(+)/kg | Ca:Mg | ESP | ||||||
cm | % | % | % w/w | ppm | Ca | Mg | K | Na | Total | H | CEC | ||
0-25 | 1.8 | <10 | 2.2 | 0.77 | 0.18 | 0.1 | 3.2 | 7.1 | 10.3 | 2.8 | 1 | ||
25-60 | 0.66 | <0.05 | 20 | 0.76 | 0.22 | <0.05 | 0.06 | 1.1 | 4.0 | 5.1 | 3.4 | 1 | |
60-75 | <0.30 | <0.05 | <10 | 0.55 | 0.38 | <0.05 | 0.08 | 1.1 | 1.4 | 2.5 | 1.4 | 3 | |
75-95 | 0.5 | <0.05 | <10 | 1.1 | 1.4 | <0.05 | 0.18 | 2.6 | 4.9 | 7.5 | 0.8 | 2 |
Location: Lake Tyers | Geo. Ref. 597003E 5812972N |
Australian Soil Classification: Bleached Sodic, Magnesic, Brown KUROSOL | Sodic brown texture contrast soil |
General landscape description: Undulating rises | |
Geology: Neogene sediments (Late Tertiary) | |
Site description: Simple upper slope 2%, north east aspect | |
Land use: Grazing | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara |
Surface soil | |||
A1 | 0 – 20/30 cm | Dark greyish brown (10YR4/2); sandy loam; weak medium (10 – 20 mm) polyhedral structure; firm moist; clear wavy change to: | |
A2 | 20/30 – 50/35 cm | Pale brown (10YR6/3) conspicuously bleached (10YR/8/1d); sandy loam or loamy sand; apedal, single grain; firm consistence dry; sharp change to: | |
Subsoil | |||
B21 | 50/35 – 80 cm | Yellowish brown (10YR5/6); heavy clay; moderate coarse (20 – 50 mm) polyhedral structure; strong consistence moist; diffuse change to: | |
B22 | 80 – 110 cm | Yellowish brown (10YR5/6) with greyish brown (10YR5/2) and increasing yellowish red (5YR5/6) mottles; heavy clay; moderate coarse (20 – 50 mm) lenticular structure; strong consistence moist. | |
Key profile features
|
pH | Sodicity | Slaking | Dispersion Dry | Dispersion Remoulded | |
Surface soil (A1 horizon) | Moderately acid | Non sodic | Water stable | Nil (2 hours), Nil (20 hours) | Nil (2 hours), Nil (20 hours) |
Subsoil (B21 horizon) | Strongly acid | Sodic | Partial | Slight (2 hours), Slight (20 hours) | Nil (2 hours), Slight (20 hours) |
Deeper subsoil (80-110 cm) | Strongly acid | Strongly sodic | Considerable | Nil (2 hours), Nil (20 hours) | Slight (2 hours), Slight (20 hours) |
Horizon | Depth cm | Field texture | pH water | pH CaCl2 | EC dS/m | Coarse sand % | Fine sand % | Silt % | Clay % | Field cap. % w/w | Wilt. point % w/w | PAW* water % w/w |
A1 | 0-20/30 | SL | 5.9 | 4.6 | 0.06 | 43 | 29 | 11 | 8 | 12.9 | 5.7 | 7.2 |
A2 | 20/30-50/35 | LS | 5.3 | 4.1 | <0.05 | 48 | 29 | 12 | 6 | 13.9 | 3.0 | 10.9 |
B21 | 50/35-80 | HC | 5.0 | 4.0 | <0.05 | 12 | 14 | 13 | 59 | 39.2 | 22.3 | 16.9 |
B22 | 80-110 | HC | 5.4 | 4.4 | <0.05 | 15 | 13 | 15 | 54 | 36.5 | 20.8 | 15.7 |
Depth | Org C# | Total N | Free Fe2O3 | Exch. Al | Exchangeable cations cmol(+)/kg | Ca:Mg | ESP | ||||||
cm | % | % | % w/w | ppm | Ca | Mg | K | Na | Total | H | CEC | ||
0-20/30 | 2.9 | 0.16 | 22 | 3.3 | 1.3 | 1 | 0.27 | 5.9 | 10.0 | 15.9 | 2.6 | 2 | |
20/30-50/35 | 0.57 | <0.05 | 74 | 0.51 | 0.33 | 0.15 | 0.12 | 1.1 | 3.6 | 4.7 | 1.5 | 3 | |
50/35-80 | 0.49 | <0.05 | 530 | 0.67 | 5.6 | 0.51 | 1.3 | 8.1 | 13.0 | 21.1 | 0.1 | 6 | |
80-110 | 0.37 | <0.05 | 110 | 0.21 | 9.9 | 0.32 | 3.2 | 14 | 8.0 | 22.0 | <0.1 | 15 |
Location: Tostaree | Geo. Ref. 0604500E 5817500N |
Australian Soil Classification: Bleached-Mottled, Eutrophic, Brown KUROSOL (Thick sandy surface horizons) | Brown texture contrast soil |
General landscape description: Undulating rises | |
Geology: Tertiary sediments | |
Site description: 3% slope to east | |
Land use: Plantation forest (Site CFTT 03) | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara |
Surface soil | |||
A1 | 0 – 15 cm | Very dark greyish brown (10YR3/2); loamy fine sand; weak fine granular structure; very weak consistence moist: clear and wavy transition to: | |
A2 | 15 – 55 cm | Light yellowish brown (10YR6/4), conspicuously bleached (10YR7/3d); loamy fine sand; very weak consistence dry; sharp and wavy transition to: | |
Subsoil | |||
B21 | 55 – 100 cm | Dark yellowish brown (10YR4/6) with common, coarse, distinct yellowish red (5YR4/6) mottles; light medium clay; moderate coarse subangular blocky structure; very firm consistence moist; gradual and smooth change to: | |
B22 | 100 – 140 cm | Red (2.5YR4/6, with many, coarse, prominent dark yellowish brown (10YR4/6) and light brownish grey (10YR106/2) mottles; mottling becoming more pronounced with depth; light medium clay; strong medium prismatic structure; strong consistence moist. | |
Key profile features
|
pH | Salinity rating | Sodicity | Dispersion | Slaking | |
Surface soil (A1 horizon) | Strongly acid | Very low | Non sodic | None | |
Subsoil (B21 horizon) | Strongly acid | Very low | Non-Sodic | None | |
Deeper subsoil (at 1 m) | Strongly acid | Very low | Non-Sodic | None |
Horizon | Depth cm | Field texture | pH water | pH CaCl2 | EC dS/m | Coarse sand % | Fine sand % | Silt % | Clay % | Field cap. % w/w | Wilt. point % w/w | PAW* water % w/w |
A1 | 0-15 | LFS | 5.3 | 4.3 | 0.08 | 28 | 44 | 13 | 9 | 17.9 | 8.4 | 9.5 |
A2 | 15-55 | LFS | 5.4 | 4.6 | <0.05 | 32 | 48 | 15 | 6 | 15.5 | 2.3 | 13.2 |
B21 | 55-100 | LMC | 5.5 | 4.9 | 0.11 | 3 | 9 | 4 | 83 | 49.1 | 31.0 | 18.1 |
B22 | 100-140 | LMC | 5.5 | 4.7 | <0.05 | 1 | 20 | 7 | 71 |
Depth | Org C | Total N | Free Fe2O3 | Exch Al | Exchangeable cations cmol(+)/kg | Ca:Mg | ESP | ||||||
cm | % | % | % w/w | ppm | Ca | Mg | K | Na | Total | H | CEC | ||
0-15 | 160 | 0.81 | 0.93 | 0.18 | 0.19 | 2.1 | 16.0 | 18.1 | 0.9 | 1 | |||
15-55 | 22 | 0.33 | 0.19 | 0.08 | 0.06 | 0.66 | 2.3 | 3.0 | 1.7 | 2 | |||
55-100 | 27 | 1.4 | 11.0 | 0.13 | 1.1 | 13.6 | 13.0 | 26.6 | 0.13 | 4 |
Location: Waygara | Geo. Ref. 0615500E 582900N |
Australian Soil Classification: Bleached-Mottled, Magnesic, Yellow CHROMOSOL | Yellow texture contrast soil |
General landscape description: Undulating rises | |
Geology: Tertiary sediments | |
Site description: Level plain | |
Land use: Native forest (Site CFTT 04) | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara |
Surface soil | |||
A1 | 0 – 15 cm | Dark grey (10YR4/1); fine sandy clay loam; weak medium granular structure; weak consistence moist; clear smooth change to: | |
A2 | 15 – 52 cm | Very pale brown (10YR7/4); conspicuously bleached; fine sandy clay loam; massive; weak consistence moist; clear smooth change to: | |
Subsoil | |||
B1 | 52 – 60 cm | Brownish yellow (10YR6/6); with common medium faint yellowish brown (10YR5/4) mottles; sandy clay; massive; weak consistence moist; clear wavy change to: | |
B21 | 60 – 90 cm | Light yellowish brown (10YR6/4), with many coarse distinct red (2.5YR4/6) mottles; light medium clay; moderate coarse polyhedral structure parting to moderate medium polyhedral structure; very firm consistence moist; diffuse change to: | |
B22 | 90 – 140 cm | Grey (10YR6/1) with many coarse prominent dark yellowish brown (10YR4/6) mottles; light medium clay; moderate coarse prismatic parting to fine polyhedral structure. |
Horizon | Depth cm | Field texture | pH water | pH CaCl2 | EC dS/m | Coarse sand % | Fine sand % | Silt % | Clay % | Field cap. % w/w | Wilt. point % w/w | PAW* water % w/w |
B21 | 60-90 | LMC | 5.9 | 5.1 | 0.05 | 21 | 16 | 12 | 50 | 32.4 | 19.1 | 13.3 |
B22 | 90-140 | LMC | 5.7 | 4.8 | 0.07 | 15 | 14 | 11 | 57 | 30.6 | 22.3 | 8.3 |
Depth | Org C | Total N | Free Fe2O3 | Exch Al | Exchangeable cations cmol(+)/kg | Ca:Mg | ESP | ||||||
cm | % | % | % w/w | ppm | Ca | Mg | K | Na | Total | H | CEC | ||
60-90 | <10 | <0.05 | 7.9 | 0.07 | 0.65 | 8.6 | 8.6 | 17.2 | <0.1 | 4 | |||
90-140 | 32 | <0.05 | 8.6 | 0.06 | 0.91 | 9.6 | 9.9 | 19.5 | <0.1 | 5 |
Location: Waygara | Geo. Ref. 604500E 5817500N |
Australian Soil Classification: Grey CHROMOSOL or KUROSOL (depends on pH) | Grey texture contrast soil |
General landscape description: Undulating plain | |
Geology: Tertiary sediments | |
Site description: 4% slope to east | |
Land use: Hardwood plantation (Site CFTT 01) | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara |
Surface soil | |||
A1 | 0 – 15 cm | Very dark greyish brown (10YR3/2); loamy fine sand; weak coarse granular structure; very weak consistence moderately moist; clear and wavy change to: | |
A2 | 15 – 50 cm | Pale brown (10YR6/3), conspicuously bleached (10YR67/2 dry); loamy fine sand; massive; very weak consistence dry; clear and wavy change to: | |
A3 | 50 – 55/65 cm | Greyish brown (10YR5/2), many, coarse, distinct, yellowish brown (10YR5/6) and strong brown (7.5YR4/6) mottles; sandy clay loam; massive; weak consistence dry; abrupt and wavy change to: | |
Subsoil | |||
B21 | 55/65 – 110 cm | Light brownish grey (10YR6/2), many, very coarse, prominent strong brown (7.5YR5/6) mottles; light medium clay; moderate coarse polyhedralstructure, parting to moderate medium polyhedral structure; strong consistence moist; diffuse and smooth change to: | |
B22 | 110 – 150 cm | Grey (10YR5/1), many, very coarse, prominent strong brown (7.5YR5/6) and red (2.5YR4/6) mottles; light medium clay; moderate to coarse polyhedral structure, parting to moderate coarse polyhedral structure; strong consistence moist; veins of similarly coloured sandy clay appear with depth. |
Location: Tostaree | Geo. Ref. 604500E 5817500N |
Australian Soil Classification: Brown CHROMOSOL or KUROSOL (depends on pH) | Brown texture contrast soil |
General landscape description: Undulating plain | |
Geology: Tertiary sediments | |
Site description: 6% slope to south | |
Land use: Hardwood plantation (Site CFTT 02) | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara |
Surface soil | |||
A1 | 0 – 8 cm | Very dark greyish brown (10YR3/2); loamy fine sand; weak fine granular structure; very weak consistence moderately moist; clear and wavy change to: | |
A2 | 8 – 15/20 cm | Pale brown (10YR6/3); loamy fine sand; very weak consistence dry; sharp and wavy change to: | |
Subsoil | |||
B21 | 15/20 – 85 cm | Yellowish brown (10YR5/4 and 10YR5/6); light medium clay; moderate very coarse angular blocky structure; strong consistence moist; diffuse and smooth change to: | |
B22 | 85 – 120 cm | Brown (10YR5/3), many, very coarse, prominent red (2.5YR4/6) mottles; light medium clay; moderate to very coarse angular blocky structure, parting to moderate medium angular blocky structure; strong consistence moist; diffuse and smooth change to: | |
B23 | 120 – 140 cm | Light grey (10YR6/1), with very many, very coarse, prominent dark red (2.5YR3/6) and yellowish brown (10YR5/6) mottles; sandy medium clay; moderate very coarse angular blocky structure, parting to moderate coarse angular blocky structure; fine subrounded quartz; strong consistence moist. |
Location: 2 km south of Cann River | Geo. Ref. 690000E 5838400N |
Australian Soil Classification: Mottled, Mesotrophic, Brown KUROSOL | Acidic brown texture contrast soil |
General landscape description: Undulating low hills | |
Geology: Tertiary sediments | |
Site description: Simple mid slope | |
Land use: Native vegetation | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara |
Surface soil | ||
A11 | 0 – 20 cm | Dark greyish brown (10YR4/2); sandy loam; clear change to: |
A12 | 20 – 60 cm | Brownish yellow (10YR6/6); sandy loam; clear change to: |
Subsoil | ||
B2 | 60 – 90 cm | Strong brown (7.5YR5/6), few coarse red mottles; coarse sandy clay; apedal (single grain); diffuse change to: |
C | 90 – 110 cm | Strong brown (7.5YR5/6), with few coarse red mottles; sandy clay loam. |
Horizon | Depth | Field texture | pH water | Exch Al | Org C | Exchangeable cations cmol (+)/kg | Ca:Mg | ||||||
cm | ppm | % | Ca | Mg | K | Na | Total | H | CEC | ||||
A!2 | 20-60 | FSL | 4.9 | 90 | 0.35 | 0.3 | 1.1 | 0.4 | 0.1 | 1.9 | 6.8 | 8.7 | 0.3 |
B2 | 60-90 | KSC | 4.9 | 120 | 0.24 | 0.3 | 1.8 | 0.4 | 0.1 | 2.6 | 6.7 | 9.3 | 0.2 |
C | 90-110 | SCL | 4.8 | 110 | 0.18 | 0.3 | 2.5 | 0.5 | 0.1 | 3.4 | 7.2 | 10.6 | 0.1 |
Location: 15 km south of Genoa, just south of Princes Highway | Geo. Ref. 717000E 5841400N |
Australian Soil Classification: Bleached-Mottled, Magnesic, Brown KUROSOL | Acidic brown texture contrast soil |
General landscape description: Undulating low hills | |
Geology: Tertiary sediments | |
Site description: Simple mid slope | |
Land use: Native vegetation | |
Native vegetation: Lowland forest | |
Mapping unit: Waygara (Component 2) |
Surface soil | Red-brown sandy soil on Tertiary sediments. Photo taken near corner of Marlo-Cabbage Tree Road and Princes Highway | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A11 | 0 – 5 cm | Dark greyish brown (10YR4/2); loamy sand; clear change to: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A12 | 5 – 15 cm | Light brownish grey (10YR6/2); loamy sand; clear change to: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subsoil | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
B2 | 15 – 35 cm | Brown (7.5YR5/4), few coarse red mottles; sandy clay; diffuse change to: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
C | 35+ cm | Reddish yellow (7.5YR6/8), few coarse red mottles; coarse sandy clay. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Note: common (10 – 20%) medium quartz sand pebbles throughout the profile | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Soil profile characteristics
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