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Inventory

(36)
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2018/26

Topic

(36)
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Area with clearly visible traces on the forest floor from timber harvesting vehicles such as tractors, forwarders and harvesters.
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Classification

(9)
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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).
(9)
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Location of the tracks of timber harvesting vehicles such as tractors, forwarders and harvesters – in four classes. Reference: Field Survey (MID 955: Bodenschadenumgebung)
(9)
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Forest ownership, classified according to the two categories: 'public' and 'private'. Reference: Forest Service Survey (MID 365: Eigentum)
(9)
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Type of tracks of timber harvesting vehicles such as tractors, forwarders and harvesters on the forest floor – in three classes. For track type 3 (severe disturbance), it can be assumed that the soil fertility is significantly and permanently damaged (Lüscher et al. 2016). Reference: Field Survey (MID 954: Bodenschadentyp LIS)

region

(36)
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Regional demarcation with the cantons as a unit, with the two half-cantons, Basel-Land and Basel-Stadt, combined into one canton for statistical reasons.
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evaluation area

(12)
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Forest of which less than two-thirds is covered with shrubs that can be accessed on foot.
(12)
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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.
(12)
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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

(36)
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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: 36 entries on 2 pages
12
LFI5 2018/26
canton
area of vehicle tracks (soil disturbance)
higher/lower altitude zone
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
canton
area of vehicle tracks (soil disturbance)
higher/lower altitude zone
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
canton
area of vehicle tracks (soil disturbance)
higher/lower altitude zone
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
canton
area of vehicle tracks (soil disturbance)
location of vehicle tracks
accessible forest without shrub forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
canton
area of vehicle tracks (soil disturbance)
location of vehicle tracks
accessible forest without shrub forest NFI1-NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI5 2018/26
canton
area of vehicle tracks (soil disturbance)
location of vehicle tracks
accessible forest without shrub forest NFI4/NFI5
1.4 km grid, subgrids 1-5
column total, %
1000 ha
search result: 36 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