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Inventory

NFI5

(1)

2018/26

NFI4

(1)

2009/17

NFI3

(1)

2004/06

Topic

forest area according to recreation type

(3)

Area of forest with recreational uses such as walking, hiking, jogging, cycling, biking, skiing and snowboarding, cross-country skiing, snowshoeing, horse-riding, camping, other activities, or no activities. Since different recreational activities may take place in a forest at the same time, this forest may contribute to the area of several recreation types.

area

forest area

(735)

All areas designated as forest according to the NFI forest definition. The forest definition includes shrub forest. The target variable "forest area" is also used when classifying the total area as forest or non-forest.

forest area according to forest function

(6)

Forest area classified according to its functions (including "no special forest function"), as determined in the interview survey with the local forest services. A forest area can fulfil several forest functions at the same time, and can thus contribute to the forest area of several forest functions.

forest area with biodiversity measures

(6)

Forest area in which specific measures for the conservation or promotion of biodiversity have been implemented since the last inventory. Only measures that have been explicitly subsidised as 'biodiversity' measures are taken into account. Since several biodiversity measures may be implemented in a forest area at the same time, this area may contribute to the total area of several different biodiversity measures.

forest plots

proportion of forest plots

(54)

Proportion of sample plots that meet the forest definition of NFI, i.e. are covered by "forest without shrub forest" or "shrub forest".

sample size (number of forest plots)

(18)

Number of forest sample plots (Plots).

Classification

recreational use

(3)

Sample plots with/without recreational use within a radius of 100 m around the sample plot centre, with details about the recreational activity (e.g. walking, jogging or biking). Recreational activities are recorded if the visitor frequency is ≥10 people per year. Reference: Forest Service Survey (MID 329: Art der aktuellen Erholungsnutzung)

region

protective forest region

(3)

Demarcation of Switzerland used in NFI for protective forest analyses. The six protective forest regions were derived from the economic regions by combining individual regions according to natural and statistical criteria.

production region

(3)

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.

economic region

(3)

Division of Switzerland into 14 regions (2 in the Jura, 3 on the Plateau, 3 in the Pre-Alps, 5 in the Alps and 1 in the Southern Alps). The economic regions are a subdivision of the production regions according to economic-geographical criteria.

canton

(3)

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.

biogeographical region

(3)

Demarcation of Switzerland into six regions with similar flora and fauna. The six regions correspond to the basic categories in the publication «The Biogeographical Regions of Switzerland», which was published by FOEN in 2022.

forest district (2023)

(3)

Regional demarcation with the forest districts as a unit. This variable is based on a survey of the cantonal forest services in winter 2022/2023.

evaluation area

accessible forest

(3)

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.

accessible forest NFI4/NFI5

(2)

Area accessible on foot that meets the NFI's definition of forest in both NFI4 (2009-2017) and NFI5 (2018-2026), i.e. was either «forest without shrub forest» or «shrub forest».

accessible forest without shrub forest

(3)

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

accessible forest without shrub forest NFI1-NFI5

(3)

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.

accessible forest without shrub forest NFI4/NFI5

(2)

Forest that was less than two-thirds covered with shrubs in both NFI4 (2009-2017) and NFI5 (2018-2026) and is accessible on foot.

forest

(3)

Area that meets the NFI's definition of 'forest', i.e. is «a forest without shrub forest» or «a shrub forest».

forest NFI4/NFI5

(2)

Area that meets the NFI's definition of forest in both NFI4 (2009-2017) and NFI5 (2018-2026), i.e. was either «forest without shrub forest» or «shrub forest».

grid

1.4 km grid, subgrids 1-5

(1)

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).

1.4-km grid

(2)

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: 3 entries on 1 page

LFI5 2018/26

protective forest region

forest area according to recreation type

recreational use

accessible forest

1.4 km grid, subgrids 1-5

column total, %

LFI4 2009/17

protective forest region

forest area according to recreation type

recreational use

accessible forest

1.4-km grid

column total, %

LFI3 2004/06

protective forest region

forest area according to recreation type

recreational use

accessible forest

1.4-km grid

column total, %

search result: 3 entries on 1 page

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