Effects of afforestation of agricultural land with grey alder (Alnus incana (L.) Moench) on soil chemical properties, comparing two contrasting soil groups

Forest Ecosystems

Table 2 Three-way ANOVA effects of soil, horizon and location under grey alder canopy on soil chemistry

Effects	N_tot	C_tot	P	Mg²⁺	K⁺	Ca²⁺	Al³⁺	Fe³⁺	Mn²⁺	pH
Soil	n.s.	*******	*******	*******	*******	*******	*******	*******	*******	*******
Horizon	*******	*******	*******	*******	*******	*******	*******	**	*******	*******
Location	*******	*******	*	*	*******	n.s.	*******	*******	*******	n.s.
Soil × Horizon	*	n.s.	n.s.	n.s.	*	*******	**	n.s.	n.s.	**
Soil × location	**	*	*	*******	*******	n.s.	*******	n.s.	n.s.	n.s.
Horizon × location	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.
Soil × Horizon × location	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.	n.s.

p values are shown: * p < 0.05; ** p < 0.01; *** p < 0.001; n.s. not significant