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Inventory

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2018/26
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Topic

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Number of stems of dead trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm.

Classification

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Number of shrubs ≥10 cm in length growing on a lying dead tree or shrub ≥12 cm in diameter at breast height (dbh) – in five classes. Reference: Field Survey (MID 425: Strauchpflanzen auf Totholz)
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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 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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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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LFI5 2018/26
protection forest region
number of deadwood stems
deadwood: mechanical strength of wood (3 classes)·deadwood: colonization by shrubs (5 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
subtotal, %
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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