Figure 2
From: Relating soil physical properties to other soil properties and crop yields
Principal component analysis for the associations among average slake aggregate (ASA), bulk density (BD), clay concentration, intact core available water capacity (IAWHC), saturated hydraulic conductivity (SHC), wet aggregate stability index (WASI), and soil chemical properties at Froid and Sidney, MT. At Froid, soil chemical properties explained 30.0% of the total variability in the first principal component (PC1) and 24.1% in the second principal component (PC2). At Sidney, chemical properties explained 40.9% of total variability in PC1 and 15.4% in PC2. BpH denotes buffer pH; EC, electrical conductivity; IP, inorganic P concentration; OP, organic P concentration; and SAR, sodium-absorption ratio.
