Table 4: Statistical parameters of calcium carbonate associated with the various microenvironments.
For each position and for each depth, means within a column followed by different letters differ at p = 0.05. BS = bare soil, ERS and ORM = embedded and on-top small rock fragments (RFs), ERM and ORM = embedded and on-top medium RFs, respectively; ERL and ORM = embedded and on-top large RFs, respectively; CV = coefficient of variation.
| Depth (cm) | Cover type | Mean Std. | CV (%) |
| (g kg-1) |
| 0-2 | BS | 279.7 a | 16.1 | 5.8 |
| ERS | 288.8 a | 15.5 | 3.4 |
| ERM | 276.9 a | 27.7 | 10.0 |
| ERL | 281.8 a | 25.6 | 9.1 |
| 5-10 | BS | 273.2 b | 30.8 | 11.3 |
| ERS | 300.0 a | 25.2 | 8.4 |
| ERM | 283.5 ab | 27.9 | 9.9 |
| ERL | 284.8 ab | 27.1 | 9.5 |
| 0-2 | BS | 279.7 c | 16.1 | 5.8 |
| ORS | 303.0 a | 19.8 | 6.5 |
| ORM | 294.2 ab | 14.0 | 4.8 |
| ORL | 282.3 bc | 19.2 | 6.8 |
| 5-10 | BS | 273.2 b | 30.8 | 11.3 |
| ORS | 300.7 a | 22.0 | 7.3 |
| ORM | 295.1 ab | 21.4 | 7.3 |
| ORL | 286.2 ab | 38.3 | 13.4 |