Table 6. Relationship among the measured soil attributes and parameters under different treatments.

	Regression model	R2
Aggregate stability and MSAs	YMWD = 0.073 MSA>5 mm + 0.034 MSA5–2 mm + 0.009 MSA1.0–0.5 mm + 0.006 MSA2–1 mm + 0.211;	0.999** (A)
	YGMD = 0.043 MSA>5 mm + 0.292	0.956** (B)
Aggregate stability and SOC	YMWD = 0.765 SOCMSA>5 mm + 1.116;	0.985** (C)
	YGMD = -1.148 SOCMSA<0.25 mm -0.672 SOCMSA0.50–0.25 mm + 3.850	0.991** (D)
Aggregate stability and TN	YMWD = 6.774 TNMSA>5 mm + 1.332;	0.987** (E)
	YGMD = 4.387 TNMSA>5 mm + 0.365	0.943** (F)
SOC in bulk soils and MSAs	Ysoc = -3.088 SOCMSA>5 mm-6.049 SOCMSA5–2 mm + 4.336 SOCMSA2–1 mm-0.400 SOCMSA0.50–0.25 mm-12.623 SOCMSA<0.25 mm + 39.469	0.965** (G)
TN in bulk soils and MSAs	YTN = 1.725 TNMSA1.0–0.5 mm-10.478 TNMSA5–2 mm + 11.677 TNMSA2–1 mm-0.900 TNMSA0.50–0.25 mm + 5.665 TNMSA<0.25 mm + 0.592	0.976** (H)

R²: Correlation coefficient; Equation (A) Y_MWD: MWD value; MSA _{>5 mm}: MSAs >5 mm size fraction; MSA_{5–2 mm}: MSAs 5–2 mm size fraction; MSA _{2–1 mm}: MSAs 2–1 mm size fraction; MSA _{1.0–0.5 mm}: MSAs 1.0–0.5 mm size fraction; Equation (B) Y_GMD: GMD value; MSA _{>5 mm}: MSAs >5 mm size fraction; Equation (C) SOC_{MSA>5 mm}: SOC in MSAs >5 mm size fraction; Equation (D) SOC_{MSA0.50–0.25 mm}: SOC in MSAs 0.50–0.25 mm size fraction; SOC_{MSA<0.25 mm}: SOC in MSAs <0.25 mm size fraction; Equation (E)(F) TN_{MSA>5 mm}: TN in MSAs >5 mm size fraction; Equation (G) SOC_{MSA>5 mm}: SOC in MSAs >5 mm size fraction; SOC_{MSA5–2 mm}: SOC in MSAs 5–2 mm size fraction; SOC_{MSA2–1 mm}: SOC in MSAs 2–1 mm size fraction; SOC_{MSA0.50–0.25 mm}: SOC in MSAs 0.50–0.25 mm size fraction; SOC_{MSA<0.25 mm}: SOC in MSAs <0.25 mm size fraction; Equation (H) TN_{MSA5–2 mm}: TN in MSAs 5–2 mm size fraction; TN_{MSA2–1 mm}: TN in MSAs 2–1 mm size fraction; TN_{MSA1.0–0.5 mm}: TN in MSAs 1.0–0.5 mm size fraction; TN_{MSA0.50–0.25 mm}: TN in MSAs 0.50–0.25 mm size fraction; TN_{MSA<0.25 mm}: TN in MSAs <0.25 mm size fraction.

**P < 0.01