Laboratory number: | 0980 | Profile Description | |||
Site number: | 36 | A1 | 0 - 5 cm | Dark brown to brown (7.5YR 4/4) gravelly clay loam; apedal; earthy fabric; slightly hard when dry; 30% small bedrock fragments up to 20 mm; pH 4.0; clear boundary | |
Classification: | Northcote (1979) - Um1.42 Stace et al (1972) – Lithosol | B | 5 - 22 cm | Strong brown (7.5YR 5/6) gravelly clay loam; apedal; earthy fabric; friable when moist; 30% small bedrock fragments up to 20 mm; fragments up to 80 mm common below 10 cm; pH 4.0 | |
Location: | Dargo 8323, grid ref. 119672 17 km NW of Dargo | R | 22+ cm | Bedrock | |
Land system, component: | Talbotville, 1 | ||||
Topography: | Upper slope of mountain ridge, N aspect, 28% gradient | ||||
Elevation: | 1100 m | ||||
Drainage: | Good | ||||
Parent material: | Mainly siltstone and shale | ||||
Vegetation: | Shrubby forest I: Eucalyptus dives and predominantly Oxylobium ellipticum and Leucopogon suaveolens in the shrub layer. Very sparse herb layer. | ||||
Remarks: | 40% surface stone about 10 mm |
LABORATORY ANALYSES 980 | |||||||||||||||||||
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 % | ||||||
Al | 0 - 5 | SiL | 39 | 18 | 18 | 31 | 19 | 4.8 | 38 | 0.003 | |||||||||
B | 5 - 10 | SiL | 28 | 15 | 23 | 34 | 23 | 50 | 32 | 18 | 8.0 | 5.0 | 35 | 0.002 | |||||
B | 10 - 20 | SiCL | 22 | 13 | 22 | 35 | 28 | 5.0 | 34 | 0.002 | |||||||||
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 | |||||||||||||||||||
Al B B | 0 - 5 5 - 10 10 - 20 | 3.8 1.8 1.8 | 0.19 0.11 0.098 | 26 21 24 | 2.6 2.9 3.3 | 5 2 3 | 240 260 260 | 0.018 0.016 0.015 | 0.21 0.26 0.30 | 0.05 <0.05 <0.05 | 0.09 0.05 0.08 | 0.7 0.7 0.7 | 0.07 0.09 0.05 | 31.4 21.6 22.1 | <1 <1 <1 | <1 <1 <1 | 2 3 3 | <1 <1 <1 | 98 97 97 |