Research
Coalburn long-term forest monitoring plot – Soil analysis
Research Status:completed
| Depth | Horizon | Detail |
|---|---|---|
| 3 cm | LF | 50:50 L and F |
| 17 cm | H | Very humose (7.5 Y 2/1) abundant fine roots containing common mycorrhiza nodules; diffuse boundary. LF and H contain 80% of the root mass |
| 2.5 to 10 cm | AH(g) | Dark brown (7.5YR 3/2) humose sandy clay loam with small pockets of very fine sand. Lightly gleyed light grey (7.5 YR 5/6) surrounding a strong brown (7.5 YR 5/6) mottle. |
| 10 to 23 cm | Eg | Pale brown (10YR 6/3) strongly gleyed (10YR 6/6-6/8) moderately stony clay; coarse sandstone subangular fragments (10-30 mm) weathering in situ; 70% matrix, 30% mottle; non-sticky; non-plastic; weak structure; common fine fibrous and semi-fibrous roots; Fe concentrations forming along root channels; not cemented or compacted; no faunal activity; clear distinct boundary. |
| 23 to 43 cm | Bg | Greenish grey (10BG 5/1) strongly gleyed with strong brown (7.5YR 5/8) mottle; moderately stoney clay loam; coarse sandstone subangular fragments (10-30 mm) weathering in situ, causing localised coarse sandy pockets; sticky; plastic; weak blocky structure; common dead white fine fibrous roots (due to water table movement); Fe concentrations forming along root channels; not cemented or compacted; no faunal activity; very clear distinct boundary. |
| 43 to 100+ cm | Bg | Bluish grey (10BG 6/1) very strongly gleyed with brownish yellow (10YR 6/8) mottle moderately stoney clay loam; coarse sandstone subangular fragments (10-30 mm) weathering in situ, sticky, slightly plastic; weak blocky structure; few dead fine fibrous root; common manganese nodules; anaerobic; not cemented or compacted; no faunal activity. |
Soil chemistry and particle size distribution (%) data are also available for various horizons (sample date: 02/05/96). Contact Sue Benham.