Figure 5 | Scientific Reports

Figure 5

From: Tillage practices and straw-returning methods affect topsoil bacterial community and organic C under a rice-wheat cropping system in central China

Figure 5

Structural equation model relating tillage systems, straw systems and bacteria communities to SOC (a1, χ2 = 124.867, df = 51, p = 0.525, CFI = 0.952, GFI = 0.923, RMSEA = 0.010; a2, χ2 = 114.847, df = 51, p = 0.565, CFI = 0.962, GFI = 0.915, RMSEA = 0.001).

Rectangles represent observed variables. Arrow thickness represents the magnitude of the path coefficient. Values associated with solid arrows represent the path coefficients. Solid and dashed arrows indicate significance (P < 0.05) and non-significance (P > 0.05), respectively. Straw, straw systems; DOC, dissolved organic C; MBC, microbial biomass C; SOC, soil organic C.

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