To explore the influences of land-use type on soil microbial characters in a peak-cluster depression of Karst region, soil microbial biomass carbon (Cmic), soil microbial biomass nitrogen (Nmic), Cmic to Nmic ratio (Cmic/Nmic), soil basic respiration (SR), SR to Cmic ratio (qCO2) and Cmic to soil organic carbon (Corg) ratio (Cmic/Corg) were studied in four different land-use types. Results showed that there was significant difference among the same microbial character of different land-use types. The variation trends of Cmic/Nmic,...