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Inventory

(42)
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2018/26
(24)
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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

(84)
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Number of forest sample plots (Plots).
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Classification

(28)
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Altitudinal vegetation belts in the system used in the guidelines for monitoring the sustainability and performance of protection forests (NaiS; Frehner et al. 2005), reduced to six classes. The variable represents a simplification of the NaiS altitudinal vegetation belts with ten classes (NAISHSTKOMB) in which the classes «hyperinsubric» and «colline» are merged with «colline with beech» to form the class «hyperinsubric and colline» and the class «lower montane» with «upper montane» and «lower/upper montane» to form the class «lower and upper montane». The information is based on the altitudinal vegetation belts determined by experts (accessible forest sample plots of NFI4 on the 1.4-km network; Arge Frehner et al. 2020), as well as on the altitudinal vegetation belts modelled for the period 1981-2010 (other sample plots; Zischg et al. 2021).
(28)
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Areas in higher and lower altitude zones classified according to the system used for altitudinal vegetation belts in the guidelines for monitoring the sustainability and performance of protection forests (NaiS; Frehner et al. 2005). The boundary between the higher and lower altitudes runs between the «upper montane» and «lower montane» levels on the Northern Alps and between the «high montane» and «upper/lower montane» levels to the Southern Alps. The information is based on the altitudinal vegetation belts determined by experts (accessible forest sample plots of NFI4 on the 1.4-km network; Arge Frehner et al. 2020), as well as on the altitudinal vegetation belts modelled for the period 1981-2010 (other sample plots; Zischg et al. 2021).
(28)
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Forest ownership, classified according to the two categories: 'public' and 'private'. Reference: Forest Service Survey (MID 365: Eigentum)

region

(84)
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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

(6)
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Area that meets the forest definition of the NFI, i.e. is «forest without shrub forest» or «shrub forest», and can be reached on foot.
(12)
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Area accessible on foot that meets the NFI's definition of forest in both NFI4 (2009-2017) and NFI5 (2018-2026), i.e. was either «forest without shrub forest» or «shrub forest».
(6)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(30)
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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.
(12)
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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.
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grid

(84)
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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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search result: 84 entries on 5 pages
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
forest
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
altitudinal vegetation belts (NaiS; 6 classes)
forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
higher/lower altitude zone
accessible forest
1.4 km grid, subgrids 1-5
column total, %
LFI5 2018/26
protection forest region
sample size (number of forest plots)
higher/lower altitude zone
accessible forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
search result: 84 entries on 5 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