Fig. 3
From: Identification of fire severity in peat deposits using carbon and nitrogen isotopes

Principal Component Analysis (PCA) based on peat chemical properties and color-coded by the fire severity. Vectors and score plots indicate the direction of the increasing gradient of each variable, while arrow lengths are proportional to the strength of the correlation with the PCA. (A) Only peat samples performed in analysis; (B) sediments samples are included in analysis.