Table 1.

Soil properties (mean ± 1 se) assessed for microbial community compositions in this study.

Site	1989 Site		2006 Site
Treatment	Control	Fertilized	Control	Fertilized
Organic
Bulk density (g cm-3)	0.13 ± 0.03	0.31 ± 0.22	0.07 ± 0.01	0.11 ± 0.03
Horizon depth (cm)	11.88 ± 3.63	9.50 ± 1.55	4.67 ± 0.44	4.50 ± 1.04
SOC (%)	39.34 ± 1.98	39.18 ± 5.09	45.74 ± 0.81	33.90 ± 6.50
Total N (%)	0.85 ± 0.11	1.81 ± 0.24	0.89 ± 0.08	1.24 ± 0.26
C:N ratio	48.45 ± 5.70	21.69 ± 0.82	52.10 ± 4.98	27.51 ± 2.37
Mineral
Bulk density (g cm-3)	1.09 ± 0.22	0.97 ± 0.36	0.95 ± 0.14	1.08 ± 0.26
Horizon depth (cm)	10.75 ± 3.25	15.25 ± 2.95	16.67 ± 3.33	17.67 ± 2.33
SOC (%)	8.75 ± 2.42	9.05 ± 3.08	3.14 ± 0.51	3.70 ± 0.79
Total N (%)	0.39 ± 0.11	0.44 ± 0.15	0.17 ± 0.03	0.20 ± 0.03
C:N ratio	22.52 ± 1.34	20.80 ± 0.33	18.93 ± 0.62	18.35 ± 0.72