Table 4.

Mean soil and foliar properties for decline classes of urban sugar maples.

Decline class	Soil Properties
Decline class	Na	K	Mg	Ca	P	N
meg/100g of soil				PPM
Yard, non declined	0.061	1.125	0.407	1.77	8.72	0.112
Road, moderately declined	0.099	0.139	0.470	2.11	9.38	0.120
Road, severely declined	0.201	0.129	0.422	2.15	19.67	0.142
Road, non declined	0.150	0.124	0.367	2.07	15.43	0.117
	Sand	Silt	Clay	Bulk Density^¹	Bulk Density^²
	%			S/cc
Yard, Non Declined	77.73	15.62	2.73	0.98	1.06
Road, Moderatley Declined	68.43	21.46	3.29	.098	1.07
Road, Severely Declined	51.16	28.22	5.38	1.14	1.22
Road, Non Declined	56.74	23.74	5.94	1.07	1.16
	Foliar Properties
	Na	K	Mg	Ca	N	P	Cl
	%
Yard, non declined	0.008	0.895	0.397	2.19	1.95	0.178	0.149
Road, moderately declined	0.018	1.036	0.392	2.19	1.84	0.210	0.160
Road, severely declined	0.032	0.715	0.352	1.99	1.63	0.152	0.215
Road, non declined	0.018	0.853	0.338	2.05	1.81	0.187	0.215

↵1 Taken at a depth of 0-15 cm
↵2 Taken at a depth of 15-10 cm