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Inventory

(9)
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2018/26
(9)
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2009/17
(6)
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2004/07
(6)
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1993/95
(6)
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1983/85

Topic

number of stems

Classification

(36)
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Classification of trees and shrubs ≥12 cm in diameter at breast height (dbh) into the three classes: «introduced tree species», «native tree species» and «indeterminable and/or shrub species». Introduced tree species are tree species that have been intentionally or unintentionally introduced by humans into habitats outside their natural range. With this classification attribute, which is used in all inventories, the Japanese larch (L. kaempferi) and introduced arboreal willow species are not counted as introduced tree species, because they are recorded together with related native species in certain inventories. The Japanese larch (Larix kaempferi), for example, is grouped together with the European larch (L. decidua). Reference: Field Survey (MID 50: Baumart)
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region

(36)
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Division of Switzerland into 14 regions (2 in the Jura, 3 on the Plateau, 3 in the Pre-Alps, 5 in the Alps and 1 in the Southern Alps). The economic regions are a subdivision of the production regions according to economic-geographical criteria.
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evaluation area

(15)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(15)
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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.
(6)
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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

(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).
(12)
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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: 36 entries on 2 pages
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LFI5 2018/26
economic region
number of stems
introduced tree species (tree neophytes; 3 classes; from NFI1 on)
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
economic region
number of stems
introduced tree species (tree neophytes; 3 classes; from NFI1 on)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
economic region
number of stems
introduced tree species (tree neophytes; 3 classes; from NFI1 on)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI4 2009/17
economic region
number of stems
introduced tree species (tree neophytes; 3 classes; from NFI1 on)
accessible forest without shrub forest
1.4-km grid
column total, %
LFI4 2009/17
economic region
number of stems
introduced tree species (tree neophytes; 3 classes; from NFI1 on)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI4 2009/17
economic region
number of stems
introduced tree species (tree neophytes; 3 classes; from NFI1 on)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
search result: 36 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