Table 1.
Chemical analysis of soil samples collected from Saint Katherine protectorate (SKP) mountains at different altitudes (1600–1800, 1800–2000, and 2000–2200 m a.s.l.). Data are means of three replications ± SE.
| Altitude (m a.s.l.) |
pH Value | Anions (ppm) | Cations (ppm) | |||||
|---|---|---|---|---|---|---|---|---|
| HCO3− | SO4− | Cl− | Ca++ | Mg++ | Na+ | K+ | ||
| 1600–1800 | 8.2 ± 0.12 a | 165.6 ± 7.5 b | 95.6 ± 2 a | 34 ± 4.9 a | 79.5 ± 1.5 a | 6.6 ± 0.4 c | 28.0 ± 1.26 a | 7 ± 1.15 b |
| 1800–2000 | 7.8 ± 0.03 ab | 228.7 ± 11.4a | 59.1 ± 1.7 b | 31.2 ± 5.1 a | 42.2 ± 3.5 b | 10.8 ± 0.37 a | 8.6 ± 1.33 b | 14.3 ± 0.88 b |
| 2000–2200 | 7.6 ± 0.22 b | 190.6 ± 5.6 b | 18.6 ± 4.5 c | 27.5 ± 1.3 a | 74.0 ± 0.85 a | 8.9 ± 0.29 b | 8.0 ± 1.15 b | 33.3 ± 3.84 a |
Columns with different letters are significantly different at p < 0.05.