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Inventory

(4)
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2009/17–2018/26
(4)
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2004/06–2009/17
(4)
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1993/95–2004/06
(4)
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1983/85–1993/95

Topic

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Increase in stemwood volume between two inventories of all surviving trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark, the stemwood volume of all ingrowing trees and shrubs with bark, and the modelled increase in the stemwood volume of the losses with bark during half the inventory period.
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Classification

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Classification of forests into 12 classes («types») according to their development, structure and management. Unlike in the 17-class forest-type classification, in this 12-class classification all development stages (from young growth to timber) are subsumed in the class «uniform high forest». Reference: Field Survey (MID 255: Nutzungskategorie, MID 257: Waldtyp nach Aufnahmeanleitung LFI, MID 260: Waldform, MID 267: Bestandesstruktur, MID 261: Entwicklungsstufe)
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region

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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

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Forest that was less than two-thirds covered with shrubs and accessible on foot in both NFI1 (1983-1985) and NFI2 (1993-1995).
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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.
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Forest that was less than two-thirds covered with shrubs and accessible on foot in both NFI2 (1993-1995) and NFI3 (2004-2006).
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Forest that was less than two-thirds covered with shrubs in both NFI3 (2004-2006) and NFI4 (2009-2017) and could be reached on foot.
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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).
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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: 16 entries on 1 page
LFI4–LFI5 2009/17–2018/26
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
m³/ha/year
1000 m³/year
LFI4–LFI5 2009/17–2018/26
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
m³/ha/year
1000 m³/year
LFI3–LFI4 2004/06–2009/17
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
m³/ha/year
1000 m³/year
LFI3–LFI4 2004/06–2009/17
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI3/NFI4
1.4-km grid
m³/ha/year
1000 m³/year
LFI2–LFI3 1993/95–2004/06
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
m³/ha/year
1000 m³/year
LFI2–LFI3 1993/95–2004/06
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI2/NFI3
1.4-km grid
m³/ha/year
1000 m³/year
LFI1–LFI2 1983/85–1993/95
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI1/NFI2
1.4-km grid
m³/ha/year
1000 m³/year
LFI1–LFI2 1983/85–1993/95
protection forest region
increment (gross increment)
forest type (12 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
m³/ha/year
1000 m³/year
search result: 16 entries on 1 page

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