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Inventory

(6)
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2018/26
(8)
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2009/17–2018/26
(6)
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2009/17
(2)
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2004/07–2018/26
(4)
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2004/07
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Topic

(38)
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Sum of the stem cross-sectional areas at a height of 1.3 m (level for measuring diameter at breast height [dbh]) of living trees and shrubs (standing and lying) with a dbh ≥12 cm.
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Classification

(38)
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Area in/outside a forest that provides protection against rockfall processes which the cantons designated «protection forest» according to the harmonised criteria of SilvaProtect-CH in 2022. Reference: GIS data from FOEN, 2025
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region

(38)
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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

(10)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(20)
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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.
(8)
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Forest that was less than two-thirds covered with shrubs in both NFI4 (2009-2017) and NFI5 (2018-2026) and is accessible on foot.

grid

(30)
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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).
(8)
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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: 38 entries on 3 pages
LFI5 2018/26
protection forest region
basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
protection forest against rockfall (2022)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
LFI5 2018/26
protection forest region
basal area
protection forest against rockfall (2022)·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
protection forest against rockfall (2022)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI4–LFI5 2009/17–2018/26
protection forest region
change: basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
m²/ha/year
LFI4–LFI5 2009/17–2018/26
protection forest region
change: basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
m²/ha/year
LFI4–LFI5 2009/17–2018/26
protection forest region
change: basal area
protection forest against rockfall (2022)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
m²/ha/year
LFI4–LFI5 2009/17–2018/26
protection forest region
change: basal area
protection forest against rockfall (2022)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
m²/ha/year
LFI4 2009/17
protection forest region
basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest
1.4-km grid
LFI4 2009/17
protection forest region
basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI4 2009/17
protection forest region
basal area
protection forest against rockfall (2022)·altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
LFI4 2009/17
protection forest region
basal area
protection forest against rockfall (2022)·main tree species
accessible forest without shrub forest
1.4-km grid
search result: 38 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