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Inventory

(20)
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2004/06
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Topic

(20)
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Number of stems of dead trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm.
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Classification

(3)
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Type of trees and shrubs ≥12 cm in diameter at breast height (dbh) in two classes (conifers or broadleaves). Reference: Field Survey (MID 50: Baumart)
(4)
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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)
(8)
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Stage of wood decay in dead trees and shrubs (standing and lying) ≥12 cm in diameter at breast height (dbh) – in three classes. Reference: Field Survey (MID 419: Totholz - Festigkeit)
(4)
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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)
(3)
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Length of lying dead trees and shrubs ≥12 cm in diameter at breast height (dbh) up to the limit for merchantable wood (7 cm in diameter) – in six classes. If an individual tree is broken, the lengths of all the parts are added together. Reference: Field Survey (MID 415: Stücklänge liegender Probebäume)
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region

(20)
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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 of which less than two-thirds is covered with shrubs that can be accessed on foot.
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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.
search result: 20 entries on 2 pages
12
LFI3 2004/06
production region
number of deadwood stems
conifers and broadleaves
accessible forest without shrub forest
1.4-km grid
column total, %
LFI3 2004/06
production region
number of deadwood stems
length of lying dead tree (6 classes)
accessible forest without shrub forest
1.4-km grid
column total, %
LFI3 2004/06
production region
number of deadwood stems
main tree species
accessible forest without shrub forest
1.4-km grid
column total, %
LFI3 2004/06
production region
number of deadwood stems
stem height of broken snags (6 classes)
accessible forest without shrub forest
1.4-km grid
column total, %
LFI3 2004/06
production region
number of deadwood stems
deadwood: mechanical strength of wood (3 classes)·deadwood: colonization by shrubs (5 classes)
accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
LFI3 2004/06
production region
number of deadwood stems
deadwood: mechanical strength of wood (3 classes)·deadwood: regeneration (3 classes)
accessible forest without shrub forest
1.4-km grid
column total, %
subtotal, %
search result: 20 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