. 2020 Apr 1;363:114143. doi: 10.1016/j.geoderma.2019.114143

Table 2.

Mean ± standard error of the mean of soil organic C (SOC), total N (N), and soil extracellular polymeric substances (EPS) concentrations (protein, polysaccharide and uronic acid; µg EPS g⁻¹ soil), and stable aggregate mean weight diameter (MWD), grouped by land uses (n = 3), and their interaction (n = 9). Where significant at p < 0.05, the least significant differences (LSD) of means are given (‘ns’ indicates non-significance). Note that some variates were transformed by log₁₀ firstly to normalise the distribution of residuals.

Land use		SOC			N			EPS						MWD
								protein		polysaccharide		uronic acid
		(%)		(log₁₀)%	(%)		(log₁₀)%			(µg g⁻¹)				(µm)		(log₁₀)µm
Previous
Grass		2.83	±0.27	0.439	0.26	±0.02	–0.598	188	±12	327	±16	144	±7	1157	±307	2.96
Arable		1.86	±0.13	0.262	0.18	±0.01	–0.753	186	±10	376	±24	203	±16	718	±124	2.81
Fallow		1.12	±0.09	0.038	0.11	±0.01	–0.974	143	±15	301	±27	180	±17	437	±52	2.61
p				0.017			0.035	0.823		0.285		0.086				0.137
LSD				0.100			0.129	ns		ns		ns				ns
Current
Grass		2.49	±0.36	0.362	0.22	±0.03	–0.681	201	±11	387	±16	209	±16	1354	±276	3.06
Arable		1.73	±0.22	0.211	0.17	±0.02	–0.804	163	±16	298	±22	152	±11	573	±45	2.75
Fallow		1.59	±0.21	0.166	0.15	±0.02	–0.840	153	±11	319	±25	166	±15	384	±37	2.57
p				<0.001			<0.001	0.014		0.005		0.002				<0.001
LSD				0.053			0.052	31		50		28				0.07
Previous	Current
Grass	Grass	3.67	±0.56	0.553	0.32	±0.05	–0.503	213	±21	346	±9	152	±4	2293	±388	3.35
	Arable	2.51	±0.19	0.397	0.23	±0.02	–0.632	195	±11	340	±24	152	±11	684	±43	2.83
	Fallow	2.33	±0.06	0.367	0.22	±0.01	–0.659	157	±20	294	±41	129	±19	494	±49	2.69
Arable	Grass	2.39	±0.09	0.377	0.22	±0.01	–0.653	198	±2	435	±13	248	±2	1174	±109	3.07
	Arable	1.64	±0.04	0.215	0.16	±0.00	–0.787	185	±31	318	±45	167	±34	584	±82	2.76
	Fallow	1.56	±0.03	0.194	0.15	±0.00	–0.818	176	±13	375	±37	194	±12	395	±27	2.60
Fallow	Grass	1.43	±0.05	0.155	0.13	±0.01	–0.888	191	±29	382	±31	227	±19	595	±61	2.77
	Arable	1.05	±0.06	0.021	0.10	±0.00	–0.992	111	±5	236	±3	136	±2	450	±42	2.65
	Fallow	0.87	±0.05	–0.063	0.09	±0.00	–1.041	126	±14	287	±46	177	±30	264	±1	2.42
p				0.988			0.988	0.597		0.133		0.073				0.035
LSD				ns			ns	ns		ns		ns				0.16