TABLE 2.
Monthly mean ± SE (n = 72) soil gravimetric moisture (m G), NH4 + and NO3 − contents, net mineralization rate (Net Min) and net nitrification rate (Net Nit) around live palms at the Intact, moderately (mDeg) and heavily (hDeg) degraded sites according to microtopography
| Site | m G (%) | NH4 + (mg N kg−1 d.m.) | NO3 − (mg N kg−1 d.m.) | Net Min (mg N kg−1 d.m. day−1) | Net Nit (mg N kg−1 d.m. day−1) |
|---|---|---|---|---|---|
| Intact hummock | 478.8 ± 16.0a1 | 806.9 ± 56.72 | 3.8 ± 0.7 | −18.8 ± 10.6b1 | 0.0 ± 0.1 |
| Intact hollow | 1,032.4 ± 44.0b2 | 1,031.5 ± 103.52 | 2.6 ± 0.6 | −63.4 ± 9.1a1 | 0.1 ± 0.1 |
| mDeg hummock | 643.1 ± 18.8a2 | 907.9 ± 61.72 | 4.0 ± 1.0 | 87.4 ± 28.32 | 0.4 ± 0.2 |
| mDeg hollow | 980.3 ± 19.1b12 | 930.7 ± 68.12 | 3.0 ± 0.8 | 30.9 ± 15.82 | 0.2 ± 0.1 |
| hDeg hummock | 640.3 ± 35.6a2 | 571.9 ± 57.0b1 | 2.2 ± 0.6 | 80.4 ± 28.12 | 1.1 ± 0.4 |
| hDeg hollow | 856.0 ± 12.5b1 | 389.5 ± 53.9a1 | 2.7 ± 0.7 | 52.4 ± 20.23 | 0.4 ± 0.3 |
Lowercase letters indicate significant differences between microtopographies within a site. Numbers indicate significant differences between sites within a microtopography. No letters or numbers are displayed in the absence of a significant difference.