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Inventory

(87)
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2018/26
(87)
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2009/17

Topic

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Wood volume of the stem without bark or stump ≥7 cm in diameter (limit for merchantable wood) of all trees and shrubs with a diameter at breast height (dbh) ≥12 cm, based on the stem-form functions according to Kaufmann (2001). The definition of the assortments is based on the 2010 edition of the Swiss trading customs for raw timber (HG 2010).
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Classification

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Type of trees and shrubs ≥12 cm in diameter at breast height (dbh) in two classes (conifers or broadleaves). Reference: Field Survey (MID 50: Baumart)
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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)
(48)
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Forest ownership, classified according to the two categories: 'public' and 'private'. Reference: Forest Service Survey (MID 365: Eigentum)
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Sorting of roundwood into four diameter classes on the basis of the 2010 and 2021 editions of the Swiss Trading Customs for Raw Timber (HG 2010, Waldwirtschaft Schweiz et al. 2010). Classes 1 and 2, 3 and 4, as well as 5 and 6 of the HG 2010 are each combined into one class.
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Type of trees and shrubs ≥12 cm in diameter at breast height (dbh). The three most common species or species groups in Switzerland (spruce - Picea spp.; fir - Abies spp.; beech - Fagus sylvatica) are in individual classes, while the remaining species are classified as «other conifers» or «other broadleaves». Reference: Field Survey (MID 50: Baumart)
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region

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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

(58)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
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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.
(58)
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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

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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).
(29)
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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: 174 entries on 10 pages
LFI5 2018/26
production region
volume of bolewood (HG 2010)
timber assortment classes (HG 2010)·conifers and broadleaves
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
production region
volume of bolewood (HG 2010)
timber assortment classes (HG 2010)·conifers and broadleaves
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
production region
volume of bolewood (HG 2010)
timber assortment classes (HG 2010)·conifers and broadleaves
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
production region
volume of bolewood (HG 2010)
timber assortment classes (HG 2010)·main tree species
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
production region
volume of bolewood (HG 2010)
timber assortment classes (HG 2010)·main tree species
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
production region
volume of bolewood (HG 2010)
timber assortment classes (HG 2010)·main tree species
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
search result: 174 entries on 10 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