silver birch (Betula pendula)

We are sorry, the portraits of the tree species are only available in German, French and Italian.

NFI sample plots with species occurrences between 1983 and *

* An occurrence is only shown with a dot on the map if the selected tree or shrub species were detected in at least two inventories.

key figures

NFI4
state 2009/17
	production region
	Jura		Plateau		Pre-Alps		Alps		Southern Alps		Switzerland
topic (target variable)	mean	±	mean	±	mean	±	mean	±	mean	±	mean	±
number of stems 1000 n	46	21	325	94	234	75	2821	414	6676	740	10102	857
number of stems %	0.1	0.0	0.4	0.1	0.2	0.1	1.7	0.2	9.6	1.0	2.0	0.2
growing stock (stemwood) 1000 m³	28	15	168	70	80	29	648	104	1869	214	2794	250
growing stock (stemwood) %	0.0	0.0	0.2	0.1	0.1	0.0	0.5	0.1	4.9	0.6	0.7	0.1
growing stock (stemwood)/number of stems m³/n	0.61	0.22	0.52	0.11	0.34	0.08	0.23	0.03	0.28	0.02	0.28	0.02

The mean ± absolute standard error of the estimate is given in each case.

evaluation area: accessible forest without shrub forest

grid: 1.4 x 1.4 km grid

NFI3–NFI4
change 2004/06–2009/17
	production region
	Jura		Plateau		Pre-Alps		Alps		Southern Alps		Switzerland
topic (target variable)	mean	±	mean	±	mean	±	mean	±	mean	±	mean	±
increment (gross increment) 1000 m³/yr	1	0	10	5	2	1	22	5	56	10	86	12
fellings and mortality 1000 m³/yr	1	1	6	3	0	0	5	2	31	7	41	7

The mean ± absolute standard error of the estimate is given in each case.

evaluation area: accessible forest without shrub forest NFI3/NFI4

grid: 1.4 x 1.4 km grid