Fig. 5From: Charcoal kiln sites, associated landscape attributes and historic forest conditions: DTM-based investigations in Hesse (Germany)PCA/biplot of the charcoal kiln sites data. Matrix: 3934 charcoal kiln sites. Reinhardswald (Rw): 2626 kiln sites, Kellerwald-Edersee National Park (Kw): 1308 kiln sites. Axis 1: eigenvalue = 1.67, axis 2: eigenvalue = 1.51, combined R2 of axes 1 and 2 = 0.19Back to article page