European silver fir – an alternative for the dying Norway spruce in Białowieża Forest?

Figures & Tables

Indicator	d (cm)		h (m)		V (m³)
Groups of trees	*	**	*	**	*	**
Average value	41.94	15.83	27.61	13.08	2.34	0.24
Minimum	27.5	7.5	23	4	0.84	0.02
Maximum	62.5	27.5	33	22	5.46	0.74
Dispersion	111.44	33.33	7.43	40.45	1.77	0.06
Standard deviation	10.56	5.77	2.73	6.36	1.33	0.24
The of variation coefficient (%)	25.18	36.45	9.89	48.62	56.84	100

Numbers and symbols of trees	The middle of the class of diameter [cm]	The height [m]	Form factor f_1,3	The basal area of the tree at a height of 1.3 [m²]	The volume of the trunk [m³]
Mother trees
1	62.5	33	0.54	0.307	5.46
3	42.5	28	0.55	0.142	2.18
4	27.5	26	0.58	0.059	0.90
5	32.5	26	0.58	0.083	1.25
6	57.5	29	0.55	0.260	4.14
8	37.5	27	0.56	0.110	1.67
9	32.5	23	0.59	0.083	1.13
11	57.5	30	0.55	0.260	4.28
12	42.5	28	0.55	0.142	2.18
13	37.5	27	0.56	0.110	1.67
14	47.5	26	0.58	0.177	2.67
15	32.5	26	0.58	0.083	1.25
16	47.5	31	0.55	0.177	3.02
18	32.5	26	0.58	0.083	1.25
19	52.5	33	0.54	0.216	3.86
20	42,5	27	0.56	0.142	2.14
A	42.5	27	0.56	0.142	2.14
F	27.5	24	0.59	0.059	0.84

Indicator	Assessment
	accepted in this classification, maximal		the investigated trees
	positive	negative	the investigated trees
Vitality	1	5	2.08
Relative of the crown length	1	4	1.83
Trend of growth	1	5	2.61
Deformation of crown	1	4	2.11
Quality of trunk	1	4	1.89