Research Article

Rehabilitation of Degraded Tropical Rainforest Using Dipterocarp Trees in Sarawak, Malaysia

Table 2

Relative growth rate in height (RGRheight), in diameter (RGRdiameter), and percentage of survivors in relation to all planted individuals over 62 months of seven dipterocarp forest species.

SpeciesRGRheight (cm cm−1 year−1)RGRdiameter (mm mm−1 year−1)Survivor (%)
GrasslandSecondary forestLogged forestGrasslandSecondary forestLogged forestGrasslandSecondary forestLogged forest

Dryobalanops beccarii 0.389 (abc)0.316 (a)0.248 (ab)0.348 (ab)0.328 (a)0.231 (a)11.1 (bc)55.5 (bc)49.9 (ab)
Parashorea macrophylla 0.288 (c)0.188 (c)0.143 (c)0.310 (b)0.200 (c)0.095 (d)15.5 (bc)83.2 (a)43.8 (ab)
Shorea  macrophylla 0.455 (ab)0.105 (d)0.191 (bc)0.448 (a)0.124 (d)0.162 (bc)5.2 (bc)53.2 (bc)62.8 (a)
S.  ovata 0.233 (bc)0.275 (ab)0.283 (ab)0.254 (b)0.274 (b)0.185 (ab)1.9 (c)62.0 (abc)11.5 (c)
S.  parvifolia 0.420 (ab)0.328 (a)0.220 (ab)0.363 (ab)0.308 (ab)0.123 (cd)17.1 (bc)40.7 (c)27.1 (bc)
S.  seminis 0.351 (bc)0.225 (bc)0.186 (bc)0.344 (b)0.277 (b)0.186 (ab)46.3 (a) 61.5 (abc)63.2 (a)
S.  virescens 0.458 (a)0.207 (bc)0.295 (a)0.401 (a)0.217 (c)0.205 (ab)25.4 (ab)78.6 (ab)53.2 (ab)

Different letters indicate significant differences among species in each treatment by ANOVA with Bonferroni test ( ).