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Inventory

(2)
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2018/26
(2)
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2009/17
(2)
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2004/07

Topic

area

Classification

(6)
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Located in/outside a groundwater protection zone. The cantons demarcate groundwater protection zones around groundwater wells and groundwater recharging facilities to protect drinking water where this is in the public interest. The indicator variable combines the various protection zone categories in force since 2016 in accordance with Art. 121 of the Waters Protection Ordinance (SR 814.201) into one class. Data status: 8 July 2022 (download from geodienste.ch).
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region

(6)
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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

(6)
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Area that meets the forest definition of the NFI, i.e. is «forest without shrub forest» or «shrub forest», and can be reached on foot.
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grid

(2)
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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).
(4)
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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: 6 entries on 1 page
LFI5 2018/26
production region
forest area
indicator of groundwater protection zones (2022)
accessible forest
1.4 km grid, subgrids 1-5
column total, %
1000 ha
LFI4 2009/17
production region
forest area
indicator of groundwater protection zones (2022)
accessible forest
1.4-km grid
column total, %
1000 ha
LFI3 2004/07
production region
forest area
indicator of groundwater protection zones (2022)
accessible forest
1.4-km grid
column total, %
1000 ha
search result: 6 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