Location: Reedy Dam | Australian Soil Classification: Epicalcareous-Endohypersodic, Self-mulching, Grey VERTOSOL |
Geology: Quaternary (Woorinen Formation). | General Landscape Description: Gently undulating plain. |
Site Description: Ploughed cropping paddock. | Native Vegetation: Mallee. |
Site ORZC5 Landscape |
Ap | 0-12 cm | Dark greyish brown (10YR4/2); light clay; soft surface condition with surface flake; very weak to weak consistence (moist); slightly calcareous; pH 7.9; clear change to: |
Site ORZC5 Profile |
Subsoil | |||
B21 | 12-20 cm | Dark grey (10YR4/1); medium clay; moderate coarse prismatic, parting to moderate coarse blocky structure; moderately calcareous; strong consistence (dry); pH 8.3; clear change to: | |
B22 | 20-35 cm | Grey (10YR5/1); medium heavy clay; very few (2%) fine calcareous nodules; small and medium slickensides present; dark infill material down ped faces; very highly calcareous; strong consistence (dry); pH 8.7; gradual change to: | |
B23 | 35-60 cm | Pale brown (10YR6/2); medium heavy clay; weak to moderate very coarse prismatic structure; dark infill material along ped faces; few (2-5%) fine earth carbonates and fine nodules (2 mm size); slickensides present; strong consistence (dry); pH 9.3; gradual change to: | |
B24k | 60-100 cm | Pale brown (10YR6/3); light medium clay; some ferruginous sandstone; few (10%) fine earth carbonates (and some fine nodules); strong consistence (dry); pH 9.7; gradual change to: | |
B25 | 100-140 cm | Pale brown (10YR6/3) with grey (10YR6/1) mottles; light medium clay; weak very coarse prismatic, parting to moderate coarse to medium polyhedral structure; few (2-5%) calcareous segregations (some fine nodules); moderately calcareous; strong consistence (dry); pH 9.7. |
pH | Salinity Rating | |||
Surface (Ap horizon) | Slightly Alkaline | Low | Non-Sodic | None1 |
Upper subsoil (12-20 cm) | Moderately Alkaline | Low | Non-Sodic | None |
Deeper subsoil (at 35-60 cm) | Very Strongly Alkaline | Low | Strongly Sodic | Strong |
Deeper subsoil (at 100-140 cm) | Extremely Alkaline | Low | Strongly Sodic | Strong |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | NaCl % | Boron mg/kg | Exchangeable Cations | Field Capacity pF 2.5 | Wilting Point pF 4.2 | Coarse Sand (0.2-2 mm) | Fine Sand (0.02-0.2 mm) | Silt (0.002-0.02 mm) | Clay (<0.002 mm) | |||
Ca | Mg | K | Na | |||||||||||||
meq/100g | ||||||||||||||||
Ap | 0-12 | 7.9 | 7.5 | 0.37 | <0.01 | 2.7 | 23 | 4.0 | 1.9 | 0.7 | 31 | 17 | 20 | 25 | 13 | 37 |
B21 | 12-20 | 8.3 | 7.9 | 0.41 | <0.01 | 4.5 | 27 | 8.2 | 1.0 | 0.7 | 38 | 21 | 17 | 18 | 9 | 46 |
B22 | 20-35 | 8.7 | 8.1 | 0.34 | <0.01 | 9.7 | 19 | 14 | 1.1 | 2.3 | 45 | 26 | 14 | 15 | 9 | 53 |
B23 | 35-60 | 9.3 | 8.5 | 0.44 | <0.01 | 22 | 11 | 18 | 1.5 | 6.7 | 53 | 27 | 13 | 14 | 10 | 51 |
B24k | 60-100 | 9.7 | 8.8 | 0.58 | <0.01 | 17 | 5.9 | 12 | 1.2 | 9.6 | 49 | 21 | 21 | 21 | 5 | 44 |
B25 | 100-140 | 9.7 | 8.9 | 0.61 | <0.01 | 19 | 4.6 | 9.6 | 1.1 | 9.1 |