Laboratory number: | 0970 | Profile Description | |||
Site number: | 488 | All | 0 - 20 cm | Black (10YR 2/1) loamy sand; apedal; earthy fabric; soft when dry; common roots; pH 6.0; clear smooth boundary | |
Classification: | Northcote (1979) - Uc3.31 Stace et al. (1972) - Earthy Sand | Al2 | 20 - 45 cm | Very dark grey (10YR 3/1) loamy sand; apedal; earthy fabric; very firm when moist; common roots; pH 4.0; clear wavy boundary | |
Location: | Bairnsdale 8422, grid ref. 791127 10 km NW of Lakes Entrance | A2 | 45 - 87 cm | Pale brown (10YR 6/3) clayey sand, sporadically bleached to light grey (10YR 7/2); apedal; very firm when moist; few roots to 60 cm; 2% charcoal up to 3 mm; pH 6.0 - 7.0; clear wavy boundary | |
Land system, component: | Stockdale, 1 | IIBir | 87 - 120 cm | Brownish yellow (10YR 6/8) sandy clay loam; weak very fine (2 mm) angular blocky structure; smooth-ped fabric; very firm when moist; common prominent grey (>15 mm) mottles; pH 6.0; clear smooth boundary | |
Topography: | Mid - slope of hill, N aspect, 8% gradient | IIC | 120 - 140 cm | Brownish yellow (10YR 6/8) clayey sand; apedal; earthy fabric; firm when moist; pH 5.8 | |
Elevation: | 60 m | ||||
Drainage: | Good | ||||
Parent material: | Tertiary coarse-textured aeolian sand | ||||
Vegetation: | Woodland III: Eucalyptus globoidea, E. bridgesiana and E. cypellocarpa, Pteridium esculentum and Imperata cylindrica predominant understorey sp | ||||
Remarks: | Leached iron compounds appear to have precipitated in the sandy clay loam layer below the A horizon. |
LABORATORY ANALYSES 970 | |||||||||||||||||||
Horizon | Sample Depth cm | Lab. texture | Particle size distribution | Atterberg limits | 1:5 soil water suspension | Clay mineralogy by x-ray diffraction | |||||||||||||
Gravel % | Coarse sand % f.e. | fine sand % f.e. | Silt % f.e. | Clay % f.e. | liquid limit % | plastic limit % | plasticity index % | linear shrinkage % | pH | EC 25°C uS/cm | Cl- % | Depth cm | Composition % | ||||||
All | 0 - 10 | SL | 4 | 51 | 24 | 7 | 15 | 5.9 | 48 | 0.004 | |||||||||
Al2 | 30 - 45 | S | 4 | 63 | 24 | 6 | 4 | 5.2 | 22 | 0.002 | |||||||||
A2 | 60 - 87 | S | 6 | 65 | 26 | 3 | 8 | 6.2 | 17 | 0.002 | |||||||||
IIBir | 90 - 115 | SCL | 14 | 52 | 19 | 7 | 21 | 5.8 | 170 | 0.015 | |||||||||
IIC | 120 - 140 | SL | 16 | 55 | 23 | 8 | 12 | 5.4 | 180 | 0.018 | |||||||||
Horizon | Sample Depth cm | Org. C % | Total N % | 1.3C N | Free Fe2O3 % | Available | HCl extract | Exchangeable cations | |||||||||||
P ppm | K ppm | P % | K % | Ca | Mg | K | Na | CEC | Ca % of CEC | Mg | K | Na | H | ||||||
Milliequivalents/100g | |||||||||||||||||||
All | 0 - 10 | 1.8 | 0.092 | 25 | 0.2 | 6 | 70 | 0.006 | 0.056 | 2.3 | 1.3 | 0.2 | 0.1 | 11.3 | 20 | 12 | 2 | 1 | 65 |
Al2 | 30 - 45 | 0.73 | 0.029 | 33 | 0.1 | 0.002 | 0.032 | 0.2 | 0.4 | 0.06 | 0.1 | 6.5 | 3 | 6 | 1 | 2 | 88 | ||
A2 | 60 - 87 | 0.13 | 0.006 | 28 | 0.1 | 1 | 20 | 0.002 | 0.011 | <0.01 | 0.15 | 0.03 | 0.05 | 1.06 | <1 | 14 | 3 | 5 | 78 |
IIBir | 90 - 115 | 0.11 | 0.015 | 10 | 1.3 | 1 | 30 | 0.002 | 0.075 | 0.1 | 3.2 | 0.09 | 1.2 | 10.1 | 1 | 32 | 1 | 12 | 54 |
IIC | 120 - 140 | 0.06 | 0.011 | 7 | 1.9 | 2 | 20 | 0.005 | 0.061 | 0.09 | 2.0 | 0.06 | 1.0 | 6.3 | 1 | 32 | 1 | 16 | 50 |