Norway spruce (Picea abies)

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	20252	1194	25949	1336	43668	1697	81929	2371	12103	941	183902	3550
number of stems %	24.7	1.3	30.5	1.3	45.6	1.3	49.7	1.1	17.4	1.3	37.0	0.6
growing stock (stemwood) 1000 m³	21404	996	26545	1252	49891	1728	72344	1939	11084	867	181268	3171
growing stock (stemwood) %	28.3	1.1	30.6	1.3	51.2	1.3	59.0	1.1	28.9	1.9	43.1	0.6
growing stock (stemwood)/number of stems m³/n	1.06	0.05	1.02	0.04	1.14	0.04	0.88	0.02	0.92	0.05	0.99	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	570	37	1068	54	1139	53	1532	65	280	29	4606	110
fellings and mortality 1000 m³/yr	593	58	1538	107	1177	106	965	90	120	36	4479	191

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