The total activity of peroxidase but not phenol oxidase was higher in the old plantation soils compared to the forest
and younger plantation soils (Table 3). Total phenol oxidase and peroxidase activities were also affected by the sampling
time in the management cycle. Both were higher in the bare soils compared to the mature plant soils (Table 3). Activities
of both oxidative enzymes were negatively correlated with %C, %N (P , 0.05); peroxidase activity was also significantly
correlated with microbial biomass (P , 0.005).