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Inventory

(597)
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2018/26
(368)
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2009/17–2018/26
(597)
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2009/17
(50)
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2004/06–2018/26
(376)
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2004/06
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Topic

basal area
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Classification

(3'205)
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Type of trees and shrubs ≥12 cm in diameter at breast height (dbh) with the ten most common species or species groups in Switzerland ('main tree species') categorised, and the classes 'other conifers' and 'other broadleaves' for the remaining species. 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 50: Baumart)
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region

(3'205)
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Demarcation of Switzerland used in NFI for protection forest analyses. The six protection forest regions were derived from the economic regions by combining individual regions according to natural and statistical criteria.
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evaluation area

(923)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(36)
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Forest that was less than two-thirds covered with shrubs and accessible on foot in both NFI1 (1983-1985) and NFI2 (1993-1995).
(1'466)
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Forest that was less than two-thirds covered with shrubs in the five inventories NFI1 (1983-1985), NFI2 (1993-1995), NFI3 (2004-2006), NFI4 (2009-2017) and NFI5 (2018-2026) and was accessible on foot.
(94)
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Forest that was less than two-thirds covered with shrubs and accessible on foot in both NFI2 (1993-1995) and NFI3 (2004-2006).
(94)
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Forest that was less than two-thirds covered with shrubs in both NFI3 (2004-2006) and NFI4 (2009-2017) and could be reached on foot.
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grid

(2'252)
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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).
(953)
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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: 3205 entries on 179 pages
LFI5 2018/26
protection forest region
basal area
main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
altitudinal vegetation belts (NaiS; 6 classes)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
altitudinal vegetation belts (NaiS; 6 classes)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
altitudinal vegetation belts (NaiS; 6 classes)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
diameter at breast height (main diameter classes)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
diameter at breast height (main diameter classes)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
diameter at breast height (main diameter classes)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
diameter at breast height (10 classes)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
diameter at breast height (10 classes)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
diameter at breast height (10 classes)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
dominant diameter at breast height (standing-living - in 8 classes)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
dominant diameter at breast height (standing-living - in 8 classes)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
dominant diameter at breast height (standing-living - in 8 classes)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
forest formations (NaiS; 10 classes)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
forest formations (NaiS; 10 classes)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
forest formations (NaiS; 10 classes)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
search result: 3205 entries on 179 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