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Inventory

(54)
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2018/26
(36)
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2009/17
(18)
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2004/07

Topic

(108)
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Stemwood volume of standing dead trees and shrubs with a diameter at breast height (dbh) ≥12 cm less the volume of broken stem pieces, plus the volume of lying deadwood ≥7 cm in diameter (merchantable wood) without merchantable pieces in heaps of branches.
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Classification

(18)
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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) – in ten classes, whereby the classes «hyperinsubric», «colline» and «colline with beech» and «lower and upper montane» only occur in the Southern Alps (S), the classes «submontane», «lower montane», «upper montane» only in the Northern Alps (N) and the classes «high montane», «subalpine» and «upper subalpine» on both sides of the Alps. 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).
(18)
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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 six classes. The variable represents a simplification of the NaiS altitudinal vegetation belts with ten classes (NAISHSTKOMB) in which the classes «hyperinsubric» and «colline» are merged with «colline with beech» to form the class «hyperinsubric and colline» and the class «lower montane» with «upper montane» and «lower/upper montane» to form the class «lower and upper montane». 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).
(18)
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Stage of stand development, defined by the dominant diameter at breast height (dbhdom = dbh of the 100 largest [thickest] trees per hectare). Young growth/thicket: dbhdom <12 cm, pole timber: dbhdom 12-30 cm, young timber: dbhdom 31-40 cm, medium timber : dbhdom 41-50 cm, old timber: dbhdom >50 cm, mixed: trees of different development stages, no development stage predominant or groups of different development stages covering < 500 m². Reference: Field Survey (MID 261: Entwicklungsstufe)
(18)
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Classification of forests into 12 classes («types») according to their development, structure and management. Unlike in the 17-class forest-type classification, in this 12-class classification all development stages (from young growth to timber) are subsumed in the class «uniform high forest». Reference: Field Survey (MID 255: Nutzungskategorie, MID 257: Waldtyp nach Aufnahmeanleitung LFI, MID 260: Waldform, MID 267: Bestandesstruktur, MID 261: Entwicklungsstufe)
(18)
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Areas in higher and lower altitude zones classified according to the system used for altitudinal vegetation belts in the guidelines for monitoring the sustainability and performance of protection forests (NaiS; Frehner et al. 2005). The boundary between the higher and lower altitudes runs between the «upper montane» and «lower montane» levels on the Northern Alps and between the «high montane» and «upper/lower montane» levels to the Southern Alps. 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

(108)
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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

(18)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(54)
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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.
(36)
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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.

grid

(108)
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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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search result: 108 entries on 6 pages
LFI5 2018/26
protection forest region
deadwood quantity
altitudinal vegetation belts (NaiS; 10 classes)
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
protection forest region
deadwood quantity
altitudinal vegetation belts (NaiS; 10 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
protection forest region
deadwood quantity
altitudinal vegetation belts (NaiS; 10 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
protection forest region
deadwood quantity
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
protection forest region
deadwood quantity
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
LFI5 2018/26
protection forest region
deadwood quantity
altitudinal vegetation belts (NaiS; 6 classes)
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 m³
search result: 108 entries on 6 pages

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