Table 2.

Description of the sampled trees. DBH, tree height, estimated age, TRW (tree-ring width of the period 2000–2020), competition (Hegyi index) and intraspecific competition are given with mean ± standard deviation of four trees for each mixture group.

Species	Site	Mixture	DBH (cm)	Tree height (m)	Est. age (years)	TRW (mm)	Competition (unitless)	Intraspecific competition (%)
Silver fir	Ges	Pure	49.1 ± 2.9	27.4 ± 2.9	38 ± 7	7.36 ± 2.36	1.5 ± 0.1	88 ± 3
		Mixed	50.1 ± 3.8	26.0 ± 0.7	38 ± 10	5.54 ± 2.70	1.1 ± 0.4	8 ± 5
	Kun	Pure	68.7 ± 10.8	36.0 ± 3.3	103 ± 19	2.01 ± 1.23	0.8 ± 0.2	84 ± 7
		Mixed	72.3 ± 1.7	38.4 ± 2.2	92 ± 8	4.09 ± 3.07	0.6 ± 0.2	3 ± 6
	Som	Pure	39.4 ± 11.7	30.9 ± 3.9	46 ± 10	4.12 ± 2.02	1.8 ± 0.6	59 ± 10
		Mixed	56.7 ± 8.7	35.6 ± 1.6	66 ± 15	5.98 ± 3.32	0.8 ± 0.2	0 ± 0
Douglas-fir	Ges	Pure	99.1 ± 7.4	51.6 ± 1.8	103 ± 8	2.78 ± 1.04	0.8 ± 0.1	63 ± 7
		Mixed	109.9 ± 16.2	50.4 ± 3.4	105 ± 7	3.27 ± 2.14	0.7 ± 0.2	7 ± 7
	Kun	Pure	81.4 ± 12.6	50.7 ± 3.3	102 ± 9	3.56 ± 1.86	1.0 ± 0.2	55 ± 2
		Mixed	90.3 ± 11.7	48.8 ± 2.6	96 ± 7	4.69 ± 2.30	0.6 ± 0.2	0 ± 0
	Som	Pure	71.6 ± 8.6	48.0 ± 3.4	88 ± 15	3.45 ± 1.21	0.7 ± 0.2	82 ± 7
		Mixed	84.9 ± 16.8	43.7 ± 4.8	88 ± 19	4.06 ± 1.53	0.5 ± 0.1	19 ± 17