|
| SW8 | Sodic, Eutrophic, Brown DERMOSOL | |
| Alvie | |||
| Undulating plains and rises | |||
| Quaternary volcanic ash deposits (Qvs) | |||
| Lower slope | |||
Horizon | Depth (cm) | Description | ||
A1 | 0-15 | Brown (7.5YR4/2) fine sandy clay loam; moderate medium blocky, parting to moderate fine granular structure; firm consistence moderately (moist); pH 6.5; clear boundary to: | ||
B21 | 15-25 | Dark reddish brown (5YR3/3) heavy clay loam (becoming light clay with depth); moderate medium blocky, parting to moderate fine blocky structure; firm consistence moderately (moist); pH 6.6; abrupt boundary to: | ||
B22 | 25-40 | Dark brown (7.5YR3/4) light medium clay; strong medium polyhedral, parting to strong fine polyhedral structure (smooth-faced peds); very firm consistence (dry); pH 6.5; gradual boundary to: | ||
B23 | 40-50 | Dark brown (7.5YR3/2) medium clay; strong coarse blocky, parting to strong medium polyhedral, parting to strong fine polyhedral parting to very coarse polyhedral structure; firm consistence; pH 7.1; gradual boundary to: | ||
B/C | 50-70 | Dark brown (7.5YR3/2) fine sandy clay loam; strong consistence (dry); contains a light (20%) amount of weathered basalt and volcanic ash; pH 8.0. | ||
C | 70 + | Volcanic ash deposits. |
Site SW8 | Sample depth | pH | EC | NaCl | Ex Ca | Ex Mg | Ex K | Ex Na | Ex Al | Ex acidity | FC (-10kPa) | PWP (-150kPa) | KS | FS | Z | C | |
Horizon | cm | H2O | CaCl2 | dS/m | % | cmolc/kg | cmolc/kg | cmolc/kg | cmolc/kg | mg/kg | cmolc/kg | % | % | % | % | % | % |
A1 | 0-15 | 6.5 | 5.5 | 0.11 | N/R | 6.4 | 10 | 0.68 | 0.95 | N/R | N/R | N/R | 17.9 | 7.0 | 31.5 | 14.5 | 41.0 |
B21 | 15-25 | 6.6 | 5.6 | 0.14 | N/R | 7.3 | 7.7 | 0.71 | 1.3 | N/R | N/R | N/R | 16.1 | 7.0 | 34.8 | 21.0 | 30.0 |
B22 | 25-40 | 6.5 | 5.5 | 0.09 | N/R | 7.4 | 19 | 0.85 | 1.1 | N/R | N/R | N/R | 24.6 | 6.7 | 21.8 | 11.0 | 53.5 |
B23 | 40-50 | 7.1 | 5.9 | 0.08 | N/R | 8.2 | 28 | 0.89 | 1.1 | N/R | N/R | N/R | 30.5 | 6.3 | 18.4 | 10.5 | 57.0 |
B/C | 50-70 | 8.0 | 7.2 | 0.22 | N/R | 11 | 26 | 0.83 | 1.7 | N/R | N/R | N/R | 23.7 | 23.4 | 36.0 | 14.0 | 17.5 |