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Inventory

(4)
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2009/17

Topic

(4)
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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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Presence of woodpecker cavities on dead trees and shrubs (standing and lying) ≥12 cm in diameter at breast height (dbh). In NFI5, information on woodpecker breeding cavities can be found via the topic (target variable): «Number of stems (standing-living) with microhabitat». However, this refers to the standing living trees and not, as here, to the standing or lying dead trees. Reference: Field Survey (MID 490: Totholz Spechtloch)
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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 of which less than two-thirds is covered with shrubs that can be accessed on foot.

grid

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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.
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search result: 4 entries on 1 page
LFI4 2009/17
protection forest region
number of deadwood stems
deadwood: mechanical strength of wood (3 classes)·woodpecker cavities on dead trees
accessible forest without shrub forest
1.4-km grid
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