Figure 5

Principal component analysis (PCA) of the soil organic carbon (SOC), total nitrogen TN content, and XCT-derived soil pore characteristics (macroporosity, mesoporosity, porosity, fractal dimension—FD, degree of anisotropy—DA, total number of pores—TP, total number of macropores—Tmacro, total number of mesopores—Tmeso) as influenced by long-term medium fertilizer (MF), high fertilizer (HF), low manure (LM), medium manure (MM), high manure (HM) rate applications, and control (CK) across 0–40 cm soil depth, at Brookings and Beresford sites.