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Inventory

(7'455)
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2018/26
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Topic

area
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Classification

(65)
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Altitude above sea level in classes of 200 m. Reference: Digital height model DHM 25 from Swisstopo
(123)
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Altitude above sea level in classes of 400 m. Reference: Digital height model DHM 25 from Swisstopo
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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) – in ten classes, whereby the classes «hyperinsubric», «colline» and «colline with beech» and «lower and upper montane» only occur in the Southern Alps (S), the classes «submontane», «lower montane», «upper montane» only in the Northern Alps (N) and the classes «high montane», «subalpine» and «upper subalpine» on both sides of the 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).
(104)
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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 three classes. The variable represents a simplification of the NaiS altititudinal vegetation belts in six classes (NAISHSTKOMB6KL) in which the class «hyperinsubric and colline» is mearged with «submontane» to form the class «hyperinsubric, colline, submontane», the class «lower and upper montane» with «high montane» to form the class «montane» and the class «subalpine» with «upper subalpine» to form the class «subalpine». 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).
(1'029)
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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).
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region

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Demarcation of Switzerland used in NFI for protective forest analyses. The six protective forest regions were derived from the economic regions by combining individual regions according to natural and statistical criteria.
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evaluation area

(276)
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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.
(359)
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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».
(1'842)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(1'926)
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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.
(1'926)
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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

(7'455)
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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).
search result: 7455 entries on 415 pages
LFI5 2018/26
protective forest region
area of shrub forest
altitude (in 400 m classes)
shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
protective forest region
area of shrub forest
type of shrub forest (aerial photo)
shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
protective forest region
area of vehicle tracks (soil disturbance)
higher/lower altitude zone
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
protective forest region
area of vehicle tracks (soil disturbance)
higher/lower altitude zone
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
protective forest region
area of vehicle tracks (soil disturbance)
higher/lower altitude zone
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
protective forest region
area of vehicle tracks (soil disturbance)
location of vehicle tracks
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
protective forest region
area of vehicle tracks (soil disturbance)
location of vehicle tracks
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
search result: 7455 entries on 415 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