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Inventory

(24)
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2018/26
(12)
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2009/17
(12)
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1993/95

Topic

(48)
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Actual number of conifers and broadleaves assessed for browsing during the field survey (no extrapolation).
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Classification

(20)
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Altitudinal vegetation belts in the system used in the guidelines for monitoring the sustainability and performance of protection forests (NaiS; Frehner et al. 2005), reduced to six classes. The variable represents a simplification of the NaiS altitudinal vegetation belts with ten classes (NAISHSTKOMB) in which the classes «hyperinsubric» and «colline» are merged with «colline with beech» to form the class «hyperinsubric and colline» and the class «lower montane» with «upper montane» and «lower/upper montane» to form the class «lower and upper montane». The information is based on the altitudinal vegetation belts determined by experts (accessible forest sample plots of NFI4 on the 1.4-km network; Arge Frehner et al. 2020), as well as on the altitudinal vegetation belts modelled for the period 1981-2010 (other sample plots; Zischg et al. 2021).
(28)
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Species of young forest plants ≥10 cm in height and ≤11.9 cm in diameter at breast height (dbh) with individual classes for the ten most important species or species groups in Switzerland («main tree species»), as well as the classes «other conifers», «other broadleaves» and «species not assessed in all inventories». The main tree species are spruce (Picea spp.), fir (Abies spp.), pine (Pinus sylvestris, P. nigra, P. strobus, P. mugo subsp. uncinata), larch (Larix spp. ), Arolla pine (Pinus cembra), beech (Fagus sylvatica), maple (Acer spp.), ash (Fraxinus spp.), oak (Quercus spp.) and chestnut (Castanea sativa). Reference: Field Survey (MID 1051: Jungwaldpflanzenart - Zählung)
(8)
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Area in/outside a forest that provides protection against avalanches which the cantons designated «protective forest» according to the harmonised criteria of SilvaProtect-CH in 2022. Reference: GIS data from FOEN, 2022
(8)
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Area in/outside a forest that provides protection against channel processes which the cantons designated «protective forest» according to the harmonised criteria of SilvaProtect-CH in 2022. Reference: GIS data from FOEN, 2022
(8)
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Area in/outside a forest that provides protection against hillslope debris flows/landslides which the cantons designated «protective forest» according to the harmonised criteria of SilvaProtect-CH in 2022. Reference: GIS data from FOEN, 2022
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region

(48)
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Demarcation of Switzerland into five regions (Jura, Plateau, Pre-Alps, Alps and Southern Alps) with relatively uniform growth and timber production conditions. The production regions were established by the Federal Office of Forestry long before the first National Forest Inventory (NFI1, 1983-1985). With a small exception along Lake Geneva, the boundaries of the production regions still follow the municipal boundaries of the time. Unlike the NFI, the Forestry Statistics of the Federal Statistical Office don't use the production regions as demarcation but rather the forestry zones, whose boundaries are somewhat different.
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evaluation area

(36)
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Stockable part of the accessible forest without shrub forest, i.e. accessible forest without shrub forest excluding the area of forest roads, recreational facilities, streams, avalanche paths, etc.
(12)
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Forest that was less than two-thirds covered with shrubs in the four inventories NFI2 (1993-1995), NFI3 (2004-2006), NFI4 (2009-2017) and NFI5 (2018-2026), was accessible on foot and could be stocked, i.e. did not contain forest roads, recreational facilities, streams, avalanche paths, etc.

grid

(24)
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Sub-grids 1, 2, 3, 4 and 5 of the field surveys on the sampling grid with a mesh size of 1.4 km (base grid).
(24)
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NFI's sampling grid with a mesh size of 1.4 km. The 1.4-km grid is the grid size covering all the previous terrestrial Inventories, which is why it is also called the base grid.
search result: 48 entries on 3 pages
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
main tree species in young forest (counting)·size classe (young forest; 5 classes)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
main tree species in young forest (counting)·size classe (young forest; 5 classes)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against avalanches (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against avalanches (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against avalanches (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against avalanches (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against channel processes (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against channel processes (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against channel processes (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against channel processes (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against hillslope debris flows/landslides (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against hillslope debris flows/landslides (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against hillslope debris flows/landslides (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against hillslope debris flows/landslides (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against rockfall (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against rockfall (2022)·size classe (young forest; 5 classes)·altitudinal vegetation belts (NaiS; 6 classes)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against rockfall (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest
1.4 km grid, subgrids 1-5
n
LFI5 2018/26
production region
number of trees assessed for browsing (no extrapolation)
protective forest against rockfall (2022)·size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest NFI2-NFI5
1.4 km grid, subgrids 1-5
n
search result: 48 entries on 3 pages

Citation

Abegg, M.; Ahles, P.; Allgaier Leuch, B.; Cioldi, F.; Didion, M.; Düggelin, C.; Fischer, C.; Herold, A.; Meile, R.; Rohner, B.; Rösler, E.; Speich, S.; Temperli, C.; Traub, B.,
2023: Swiss national forest inventory NFI. Result tables and maps of the NFI surveys 1983–2022 (NFI1, NFI2, NFI3, NFI4, NFI5.1–5) on the internet. [Published online 30.05.2023] Available from the World Wide Web <http://www.lfi.ch/resultate/> . Birmensdorf, Swiss Federal Research Institute WSL
https://doi.org/10.21258/1769925