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Inventory

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2009/17
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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 young broadleaves or conifers ≥10 cm growing on a lying dead tree or shrub ≥12 cm in diameter at breast height (dbh) – in three classes. Reference: Field Survey (MID 426: Verjüngung auf Totholz)
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region

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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

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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

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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: 4 entries on 1 page
LFI4 2009/17
production region
number of deadwood stems
deadwood: mechanical strength of wood (3 classes)·deadwood: regeneration (3 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
subtotal, %
search result: 4 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
https://doi.org/10.21258/1769925