Fig. 6

Correlation matrix illustrating relationships among soil physico-chemical and microbiological properties. Data pooled for soils from different cropping systems. EC = Electrical conductivity, TC: Total carbon; TIC: Total inorganic carbon; SOC: Soil organic carbon; DOC: Dissolved organic carbon; MBC: Microbial biomass carbon; DHA: Dehydrogenase activity. Correlation is significant at p < 0.05 level (2-tailed).