Laboratory number: | 0959 | Profile Description | |||
Site number: | 472 | A1 | 0 - 5 cm | Very dark greyish brown (10YR 3/2) clay loam; moderate medium (15 mm) subangular blocky structure; rough-ped fabric; friable when moist; pH 4.7; clear boundary | |
Classification: | Northcote (1979) - Gn3.21 Stace et al. (1972) - Brown Earth | B1 | 5 - 30 cm | Dark brown (10YR 4/3) silty clay loam; moderate medium to coarse (20 mm) subangular blocky structure; rough-ped fabric; firm when moist; 2% rock fragments up to 10 mm; pH 5.0 | |
Location: | Moe 8121, grid ref. 488425 17 km S of Churchill | B2 | 30 - 110 cm | Dark brown (10YR 4/3) silty clay; few faint yellowish brown (<5 mm) mottles; strong coarse (25 mm) angular blocky structure; smooth-ped fabric; firm when moist; pH 5.0 | |
Land system, component: | Gunyah, 1 | C | 110 - 120+ cm | Yellowish brown (10YR 5/4) silty clay; common faint dark yellowish brown (<5 mm) mottles; weak coarse (50 mm) subangular blocky structure; rough-ped fabric; firm when moist; 5% rock fragments up to 8 mm; pH 5.0 | |
Topography: | Mid-slope of hill, 45% gradient | ||||
Elevation: | 440 m | ||||
Drainage: | Good | ||||
Parent material: | Cretaceous mudstone and siltstone | ||||
Vegetation: | Shrubby open forest II: Eucalyptus regnans with Acacia melanoxylon, Cassinia aculeata, Pomaderris aspera, Olearia argophylla, Goodenia ovata and Tetrarrhena juncea common in understorey | ||||
LABORATORY ANALYSES 959 | |||||||||||||||||||
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 | SiCL | 2 | 11 | 23 | 32 | 29 | 69 | 45 | 24 | 10 | 4.8 | 120 | 0.010 | |||||
B1 | 10 - 20 | SiCL | 0 | 3 | 19 | 37 | 38 | 4.9 | 49 | 0.006 | |||||||||
B2 | 60 - 90 | SiC | 0 | 1 | 16 | 32 | 49 | 59 | 31 | 28 | 14 | 5.0 | 50 | 0.006 | |||||
C | 110 - 120 | SiC | 0 | 2 | 17 | 33 | 45 | 4.9 | 49 | 0.006 | |||||||||
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 | 0 - 5 | 11.2 | 0.44 | 33 | 2.6 | 270 | 580 | 0.11 | 0.39 | 1.7 | 1.7 | 1.5 | 0.4 | 60.4 | 3 | 3 | 2 | 1 | 91 |
Bl | 10 - 20 | 2.6 | 0.21 | 16 | 3.0 | 6 | 120 | 0.025 | 0.36 | 0.7 | 0.8 | 0.4 | 0.3 | 29.7 | 2 | 3 | 1 | 1 | 93 |
B2 | 60 - 90 | 3.5 | 0.017 | 0.37 | 0.6 | 0.7 | 0.6 | 0.3 | 28.0 | 2 | 3 | 2 | 1 | 92 | |||||
C | 110 - 120 | 4.0 | 0.022 | 0.37 | 0.5 | 0.6 | 0.6 | 0.2 | 28.1 | 2 | 2 | 2 | 1 | 93 |