Aggregate-related microbial communities and nutrient stoichiometry under different croplands

Ecological Processes

Table 1 Changes in proportion and parameters related to soil aggregates under different croplands

Croplands	ME	MA	MI	SC	MWD	GMD	MWSSA	D
Croplands	%	%	%	%	mm	mm	cm² g⁻¹	–
Rice	14.23 ± 0.18a	52.10 ± 6.99a	25.20 ± 7.08a	8.49 ± 0.09a	0.58 ± 0.04a	0.9915 ± 0.00a	393.68 ± 37.40a	2.20 ± 0.03a
Maize	12.88 ± 2.83a	44.21 ± 2.84a	34.61 ± 0.06ab	8.30 ± 0.07a	0.52 ± 0.01a	0.9901 ± 0.00a	438.60 ± 0.00a	2.22 ± 0.01a
Soybean	3.52 ± 2.00b	28.88 ± 15.92b	47.63 ± 8.83b	19.99 ± 5.08b	0.33 ± 0.08b	0.9836 ± 0.00b	704.11 ± 129.60b	2.49 ± 0.10b

ME, MA, MI, and SC represent soil aggregate fractions with grain sizes of > 1 mm, 0.25–1 mm, 0.053–0.25 mm, and < 0.053 mm, respectively. MWD, GMD, MWSSA, and D represent the mean weight diameter, geometric mean diameter, mean weight specific surface area, and fractal dimension of soil aggregates, respectively. Differences in homogeneous data were performed in SPSS Ver. 20.0 using one-way ANOVA with Duncan's multiple range test (P< 0.05) for means separation