Table 2.

Element concentration (average ± standard deviation, mg kg^-1 DW) in the washwater of hornbeam leaves.

mg kg-1 DW	Białowieża	Bóbrka	Warsaw
Macronutrients
Mg	1.79 ± 0.42	1.94 ± 0.59	1.79 ± 0.43
P	1.66 ± 0.23	1.41 ± 0.25∗∗∗	1.39 ± 0.19∗∗∗
Ca	9.73 ± 1.65	11.44 ± 1.67∗∗∗	13.26 ± 2.37∗∗∗
S	1.21 ± 0.14	1.39 ± 0.19∗	1.64 ± 0.69∗∗∗
K	3.70 ± 0.56	4.15 ± 0.32∗∗∗	4.81 ± 0.75∗∗∗
Micronutrients
Fe	0.060 ± 0.0100	0.090 ± 0.0130∗∗∗	0.160 ± 0.0300∗∗∗
Mn	1.660 ± 0.5000	1.000 ± 0.7800∗∗∗	0.120 ± 0.1600∗∗∗
Cu	0.004 ± 0.0010	0.001 ± 0.0010∗∗	0.003 ± 0.0010∗∗
Zn	0.025 ± 0.0070	0.026 ± 0.0080	0.024 ± 0.0050
Trace metals
Na	0.0150 ± 0.0030	0.0140 ± 0.0070∗∗∗	0.0420 ± 0.0170∗∗
Pb	0.0006 ± 0.0004	0.0007 ± 0.0004	0.0006 ± 0.0014
Pt	0.0010 ± 0.0001	0.0040 ± 0.0080∗∗	0.0010 ± 0.0010∗
Rh	0.0002 ± 0.0001	0.0002 ± 0.0001	0.0003 ± 0.0001∗
Pd	0.0002 ± 0.0001	0.0003 ± 0.0001	0.0003 ± 0.0001

The statistical differences were tested with one-way ANOVA tests followed by Tukey–Kramer post hoc tests: ^∗p ≤ 0.05, ^∗∗p ≤ 0.01, and ^∗∗∗p ≤ 0.001; post hoc results of the comparison with Białowieża.