Agency Code: 501 Project Code: JSI Site Code: 1139
Described by: Tim Overheu Date: 29/11/1994

Observation type: soil pit Category: full description
Lab Analyses: Detailed chemical and physical analyses.

Location: MGA94 Zone: 50  681919 mE  6238962 mN Map sheet:  Bremer 100K
Location notes: 
Site notes: Site located higher in landscape above a minor drainage line. Contour banks constructed nearby. Nearby paddocks have various planted tree species.  
Disturbance: Complete clearing; past cultivation.

Landform
Landform pattern: rises
Relief/modal slope: gently undulating rises
Landform element: hillslope
Morphological type: upper slope
Pattern Relief:  rises	Microrelief: 15 m

Surface and Hydrological Properties
Rock outcrop: 0 %  
Surface coarse fragments: very few subangular gravel sized igneous rock (unidentified); few subangular stones and boulder sized igneous rock (unidentified)
Physical properties: loose; ; shallow soil

Geology/parent material
Soil parent material:
Granite - weathered material.

Vegetation
Notes: Allocas huegliana, dominant vegetation.

Land use
Site: Grazing (grazing of vegetation planted by man). Surrounds: Grazing (grazing of vegetation planted by man).

Visible erosion, assessed flooding and salinity
no flooding, no ponding, no salinity.

Current Classification
WA Soil Group: (1999) Yellow/brown deep sandy duplex
Australian Soil Classification: (2002) Mesotrophic Mottled-Mesonatric Brown Sodosol
ASC confidence: very high
Soil Series: Courang
Map Unit: 243Jm_2

Other Classifications
Northcote PPF: Dy5.82

Soil Profile Description

Horizon | Depth (cm) | Description
Ap | 0-10 | Very dark greyish brown (10YR 3/2 moist) loamy sand; no mottles; loose dry consistence; sandy fabric; apedal, single grain structure; no segregations segregations; subangular quartz medium gravel sized coarse fragments; non-dispersing, non-slaking, water repellent, non-calcareous; no pan; pH 6.2; EC 30 mS/m; abrupt boundary.
A21 | 10-22 | Dark yellowish brown (10YR 4/6 moist) sand; no mottles; loose dry consistence; sandy fabric; apedal, single grain structure; no segregations segregations; subangular quartz fine gravel sized coarse fragments; non-dispersing, non-slaking, non water repellent, non-calcareous; no pan; pH 6.7; EC 10 mS/m; clear boundary.
A3 | 22-30 | Brownish yellow (10YR 6/6 moist) sand; few fine prominent mottles; loose dry consistence; sandy fabric; apedal, single grain structure; no segregations segregations; non-dispersing, non-slaking, non water repellent, non-calcareous; no pan; pH 7.1; EC 50 mS/m; abrupt boundary.
B21 | 30-70 | Yellowish brown (10YR 5/6 moist) gritty medium clay; yellowish red (5YR 5/8 moist)  mottles; very firm moderately moist consistence; smooth-ped fabric; pedal, strong, 2-5 mm, subangular blocky structure; no segregations segregations; slow dispersion, non-slaking, non water repellent, non-calcareous; no pan; pH 8; EC 180 mS/m.

Lab Results (501 JSI 1139)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | pH_CaCl2 | EC | OC_wb | N_kjel | P_kjel | PRI | K_xrf | Al_CaCl2
A | 1 | A | 0-10 | 5.3 | 4.4 | 8 | 1.33 | 0.105 | 170 | 1.1 | 1.3 | 3
B | 2 | A | 10-22 | 5 | 4.2 | 3 | 0.33 | 0.026 | 75 | 2 | 1.4 | 3
C | 3 | A | 22-30 | 6.1 | 5 | 4 | 0.16 | 0.012 | 71 | 5.4 | 1.5 | <1
D | 4 | A | 30-70 | 6.8 | 5.9 | 18 | 0.23 | 0.028 | 76 | 870 | 0.8 |

Exchangeable Cations

Sample | Horizon | Match | Depth | CEC | Exch_Ca | Exch_Na | Exch_K | Exch_Mg | Exch_Mn | Exch_Al | Sum_Exch | ESP | CaMgR_Exch | Exch_cats% | Base_stat
A | 1 | A | 0-10 | | 1.7 (2) | 0.21 (2) | 0.34 (2) | 0.36 (2) | <0.02 (2) | 0.24 (2) | 2.61 (1) | 8 (3) | 4.72 (1) | | 72.5 (2)
B | 2 | A | 10-22 | | 0.63 (2) | 0.09 (2) | 0.14 (2) | 0.2 (2) | <0.02 (2) | 0.2 (2) | 1.06 (1) | 8 (3) | 3.15 (1) | | 25.24 (2)
C | 3 | A | 22-30 | | 0.7 (2) | 0.24 (2) | 0.1 (2) | 0.66 (2) | <0.02 (2) | 0.06 (2) | 1.7 (1) | 14 (3) | 1.06 (1) | | 18.89 (2)
D | 4 | A | 30-70 | 13 (1) | 2.3 (1) | 3.2 (1) | 0.59 (1) | 5.9 (1) | | | 11.99 (1) | 25 (2) | 0.39 (1) | 92 (2) | 19.37 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | s1000_2000 | s600_1000u | s300_600u | s180_300u | s150_180u | s106_150u | s75_106u | s20_75u | silt | clay
A | 1 | A | 0-10 | 7.5 | 11.2 | 22.3 | 15.9 | 5 | 7.1 | 6.6 | 16.4 | 4.4 | 3.6
B | 2 | A | 10-22 | 9.6 | 10.8 | 19 | 15.7 | 5.2 | 7.8 | 8 | 15.3 | 4.4 | 4.2
C | 3 | A | 22-30 | 9.2 | 12.8 | 20.9 | 13.7 | 4.1 | 6.7 | 5.8 | 10.9 | 6.9 | 9
D | 4 | A | 30-70 | 4.4 | 5.4 | 9.1 | 5 | 1.8 | 2.2 | 1.8 | 3.7 | 4.7 | 61.9