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Inventory

(8)
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2018/26
(8)
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2009/17
(8)
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1993/95

Topic

(24)
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Number of living conifers and conifers ≥10 cm in height and ≤11.9 cm in diameter at breast height (dbh).
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Classification

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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)
(24)
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Size of young forest plants ≥10 cm in height and ≤11.9 cm in diameter at breast height (dbh) – in five size classes (two height and three dbh classes). Reference: Field Survey (MID 507: Jungwaldklasse)

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

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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.
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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

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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: 24 entries on 2 pages
12
LFI5 2018/26
production region
number of stems of young forest plants
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
column total, %
subtotal, %
LFI5 2018/26
production region
number of stems of young forest plants
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
column total, %
subtotal, %
LFI4 2009/17
production region
number of stems of young forest plants
size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
LFI4 2009/17
production region
number of stems of young forest plants
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
column total, %
subtotal, %
LFI2 1993/95
production region
number of stems of young forest plants
size classe (young forest; 5 classes)·main tree species in young forest (counting)
stockable and accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
search result: 24 entries on 2 pages
12

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