(mgCO2 – C/mg biomass/d) Table 3. Landuse change effect on selected biological soil properties Landuse type CTMB (mgCkg-1) CAMB CTMB/Corg (%) BR (mgCO2 C/kg/d) qCO2:T (mgCO2 – C/mg biomass/d) qCO2:A Natural forest 273.9 81.2 2.78 0.83 33.49 6.4 0.068 0.218 Reforested lands 324.6 66.5 4.33 0.89 48.81 8.8 0.072 0.244 Cultivated uplands 176.6 51.4 2.55 0.74 34.24 6.2 0.070 0.262 Swamps 298.2 43.0 5.53 0.79 69.34 5.5 0.056 0.158 Soil around quarry mines 155.0 37.4 3.78 0.91 41.44 4.0 0.049 0.109 Built-up Areas 92.7 17.8 2.27 0.44 52.08 2.6 0.031 0.076 Fallow lands 380.4 102.6 5.36 0.14 37.07 9.1 0.080 0.252 GTMB=Total microbial biomass; CAMB=Active microbial biomass; BR=Basal respiration; Corg=Total Organic Carbon; qCO2:T and qCO2:A=Specific maintenance respiration rates for GTMB and CAMB. Uquetan U. I. et al. Evaluation of Soil Quality in Relation to Landuse Effect in Akamkpa, Cross River State – Nigeria. Applied Ecology and Environmental Sciences, 2017, Vol. 5, No. 2, 35-42. doi:10.12691/aees-5-2-2 © The Author(s) 2015. Published by Science and Education Publishing.