Total phosphatase activity was higher and sulphatase activity was lower in the plantation soils compared to the
forest soils. The sampling time in the management cycle did not affect the total activity of these enzymes (Table 3).
Phosphatase was negatively correlated with microbial biomass (P , 0.005) and not correlated with available P,
%C, or %N. Sulphatase activity was not correlated with %C and %N, positively correlated with microbial biomass
(P , 0.0001) and negatively correlated with available S (P , 0.05).