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Inventory

(108)
i
1983/85
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Topic

area
basal area
forest plots
number of stems
volume
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Classification

(108)
i
Stage of stand development, defined by the dominant diameter at breast height (dbhdom = dbh of the 100 largest [thickest] trees per hectare). Young growth/thicket: dbhdom <12 cm, pole timber: dbhdom 12-30 cm, young timber: dbhdom 31-40 cm, medium timber : dbhdom 41-50 cm, old timber: dbhdom >50 cm, mixed: trees of different development stages, no development stage predominant or groups of different development stages covering < 500 m². Reference: Field Survey (MID 261: Entwicklungsstufe)
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region

(108)
i
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

(54)
i
Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(54)
i
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.

grid

(54)
i
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).
(54)
i
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: 108 entries on 6 pages
LFI1 1983/85
protection forest region
basal area
development stage
accessible forest without shrub forest
1.4-km grid
LFI1 1983/85
protection forest region
basal area
development stage
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI1 1983/85
protection forest region
diversity of woody species
development stage
accessible forest without shrub forest
1.4-km grid
LFI1 1983/85
protection forest region
diversity of woody species
development stage
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
LFI1 1983/85
protection forest region
forest area
development stage
accessible forest without shrub forest
1.4-km grid
column total, %
1000 ha
LFI1 1983/85
protection forest region
forest area
development stage
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI1 1983/85
protection forest region
forest area
degree of mixture (terrestrial)·higher/lower altitude zone·development stage
accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI1 1983/85
protection forest region
forest area
degree of mixture (terrestrial)·higher/lower altitude zone·development stage
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
subtotal, %
1000 ha
LFI1 1983/85
protection forest region
forest area
ownership (2 categories)·development stage
accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI1 1983/85
protection forest region
forest area
ownership (2 categories)·development stage
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
search result: 108 entries on 6 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