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Inventory

(32)
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2004/06
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Topic

(32)
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All areas designated as forest according to the NFI forest definition. The forest definition includes shrub forest. The target variable "forest area" is also used when classifying the total area as forest or non-forest.
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Classification

(32)
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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).
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region

(32)
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Demarcation of Switzerland into five regions (Jura, Plateau, Pre-Alps, Alps and Southern Alps) with relatively uniform growth and timber production conditions. The production regions were established by the Federal Office of Forestry long before the first National Forest Inventory (NFI1, 1983-1985). With a small exception along Lake Geneva, the boundaries of the production regions still follow the municipal boundaries of the time. Unlike the NFI, the Forestry Statistics of the Federal Statistical Office don't use the production regions as demarcation but rather the forestry zones, whose boundaries are somewhat different.
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evaluation area

(9)
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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.
(13)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(1)
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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.
(9)
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Area that meets the NFI's definition of 'forest', i.e. is «a forest without shrub forest» or «a shrub forest».

grid

(1)
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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).
(31)
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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: 32 entries on 2 pages
12
LFI3 2004/06
production region
forest area
altitudinal vegetation belts (NaiS, 3 classes)·stand relevant for regeneration·type of regeneration
accessible forest without shrub forest
1.4-km grid
1000 ha
LFI3 2004/06
production region
forest area
altitudinal vegetation belts (NaiS, 3 classes)·stand relevant for regeneration·type of regeneration
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
1000 ha
LFI3 2004/06
production region
forest area
primary forest function (NFI5): nature conservation·altitudinal vegetation belts (NaiS, 3 classes)
accessible forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI3 2004/06
production region
forest area
primary forest function (NFI5): nature conservation·altitudinal vegetation belts (NaiS, 3 classes)
accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI3 2004/06
production region
forest area
primary forest function (NFI5): nature conservation·altitudinal vegetation belts (NaiS, 3 classes)
forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI3 2004/06
production region
forest area
primary forest function (NFI5): nature conservation·altitudinal vegetation belts (NaiS, 3 classes)·stand's origin
accessible forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI3 2004/06
production region
forest area
primary forest function (NFI5): nature conservation·altitudinal vegetation belts (NaiS, 3 classes)·stand's origin
accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
1000 ha
LFI3 2004/06
production region
forest area
primary forest function (NFI5): nature conservation·altitudinal vegetation belts (NaiS, 3 classes)·stand's origin
forest
1.4-km grid
column total, %
search result: 32 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