Root biomass and soil carbon distribution in hybrid poplar riparian buffers, herbaceous riparian buffers and natural riparian woodlots on farmland

SpringerPlus

Table 1 Soil profile characteristics of three riparian land uses at four sites

		pH			Bulk density (g cm^-3)			Stoniness (%)			Texture (%)(clay-silt-sand)
Land uses	Sites	0-20 cm	20-40 cm	40-60 cm	0-20 cm	20-40 cm	40-60 cm	0-20 cm	20-40 cm	40-60 cm	0-20 cm	20-40 cm	40-60 cm
Woodlot - Hemlock	Brompton	5.35	6.50	6.80	0.76	1.21	1.54	0	0	0	17-44-39	27-27-46	21-18-61
Woodlot - White cedar	Magog	4.53	4.95	5.45	0.85	0.86	0.92	15	12	14	25-34-41	13-30-57	13-28-60
Woodlot - Grey birch	Roxton	4.93	5.15	5.18	1.16	1.33	1.32	0	0	0	16-37-47	18-43-39	21-39-40
Woodlot - Sugar maple	St-Isidore	4.25	4.80	4.90	0.66	0.81	0.99	1	1	10	15-42-43	11-52-37	13-50-37
Hybrid poplar buffer	Brompton	6.37	6.18	6.22	1.14	1.33	1.22	0	0	0	15-38-47	11-44-45	11-33-56
Hybrid poplar buffer	Magog	5.63	5.75	5.85	0.90	1.00	0.87	12	19	35	16-35-49	16-33-51	14-32-54
Hybrid poplar buffer	Roxton	6.18	6.09	6.20	1.23	1.35	1.38	1	3	4	19-29-52	17-35-48	28-26-46
Hybrid poplar buffer	St-Isidore	5.44	5.78	5.95	1.07	1.03	0.92	2	15	36	22-40-38	13-46-40	16-39-45
Herbaceous buffer	Brompton	6.15	5.73	5.95	0.90	1.21	1.32	0	0	0	16-36-48	13-58-29	17-56-27
Herbaceous buffer	Magog	5.73	6.10	6.18	1.12	1.08	1.10	13	3	0	13-32-55	8-15-77	11-10-79
Herbaceous buffer	Roxton	7.23	6.30	6.35	1.22	1.35	1.40	0	0	0	16-31-53	13-24-63	12-11-77
Herbaceous buffer	St-Isidore	5.48	5.78	6.03	0.92	0.98	0.94	1	38	40	21-50-29	13-56-31	13-32-55
Land use × Site	p<	0.01	0.001	0.001	0.01	NS	NS	NS	0.001	0.05
	SE	0.16	0.17	0.13	0.06	0.09	0.09	3	4	7
Land use	p<	0.001	0.001	0.001	0.001	NS	NS	NS	0.05	0.05
	SE	0.08	0.09	0.06	0.03	0.04	0.05	2	2	3
Site	p<	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.001
	SE	0.09	0.10	0.07	0.03	0.05	0.05	2	2	4