Long-Term Effects of Periodical Fires on Archaeal Communities from Brazilian Cerrado Soils

Figure 2

Principal component analysis (PCA) of soil physicochemical properties based on a correlation matrix performed in Factoextra R package v.1.0.3 (a). OM: organic matter; CEC: cation exchange capacity. (b) NH₄⁺-N concentrations in soils from Control and Burned areas, with asterisk indicating significant difference detected in Welch’s -test.

(a)

(b)