Research Article
Rehabilitation of Degraded Tropical Rainforest Using Dipterocarp Trees in Sarawak, Malaysia
Table 1
Differences in surface soil properties and relative light intensities in the grassland, secondary forest, and logged forest.
| | | Grassland | Secondary forest |
Loggedforest | n |
| | pH | 5.43 (a) | 4.81 (b) | 4.83 (b) | 7 | | EC (mS m−1) | 4.76 (ab) | 3.83 (a) | 5.22 (b) | 7 | | Exch. Ca (cmolc kg−1) | 4.27 (a) | 1.61 (b) | 2.09 (b) | 7 | | Exch. K (cmolc kg−1) | 0.65 (a) | 0.26 (b) | 0.31 (b) | 7 | | Exch. Mg (cmolc kg−1) | 2.21 (a) | 1.10 (b) | 1.55 (ab) | 7 | | Exch. Al (cmolc kg−1) | 1.07 (a) | 3.59 (b) | 3.11 (ab) | 7 | | CEC (cmolc kg−1) | 18.45 (a) | 14.4 (a) | 18.7 (a) | 7 | | T-C (g kg−1) | 34.8 (ab) | 30.9 (a) | 40.4 (b) | 7 | | Penetrometer count (0–10 cm) | 3.46 (a) | 2.59 (b) | 2.34 (b) | 56 | | Penetrometer count (10–20 cm) | 4.68 (a) | 5.29 (a) | 5.05 (a) | 56 | | Relative light intensity (%) | 79.7 (a) | 7.14 (b) | 4.00 (b) | 210 | | Maximum daily soil temperature (5 cm) (°C) | 34.3 (a) | 27.3 (b) | 25.2 (c) | 30 | | Maximum daily soil temperature (25 cm) (°C) | 29.7 (a) | 25.6 (b) | 24.8 (c) | 30 |
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EC: electric conductivity; Exch. Ca: exchangeable calcium; Exch. Mg: exchangeable magnesium; Exch. K: exchangeable potassium; Exch. Al: exchangeable aluminum; CEC: cation exchange capacity; T-C: total carbon. Values are means.
Different letters indicate significant differences by ANOVA with Bonferroni test ().
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