Size of Areas of Defined Use (E2)
 

Each type of land use creates its own habitats with adapted animal and plant communities. If the use of the landscape changes, so does the composition of these life communities.

For the purposes of E2, the Swiss countryside is classified into 13 types that reflect land use and surface characteristics. If a particular type of use increases or decreases, this has consequences—either positive or negative—for the flora and fauna concerned. Thus, such changes can only be interpreted in conjunction with other BDM indicators (in particular Z7/Z8/Z9).

 
 
Development in Switzerland
 
The tables that follow are based on the information provided in the Swiss land use statistics, which capture the Swiss landscape with aerial photographs. The land use statistics provide data for the periods 1979 to 1985 and 1992 to 1997.

Land use and structure categories

Areas in hectares
transparent

Changes in
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1979/1985

1992/1997

ha

%
Artificial surfaces     transparent transparent
Building areas 118,105 137,558 19,453 16.5
Industry, commerce, infrastructure 99,759 111,879 12,120 12.1
Mines, dumps, construction sites 14,962 13,793 -1,169 -7.8
Recreational areas and green spaces 13,578 15,'860 2,282 16.8
Total of artificial areas 246,404 279,090 32,686 13.3
Agricultural area      
Arable land and permanent grassland 946,696 926,367 -20,329 -2.1
Permanent crops 70,939 60,954 -9,985 -14.1
Field coppices and hedges 35,921 35,807 -114 -0.3
Total of agricultural areas 1,053,556 1,023,128 -30,428 -2.9
Forests and semi-natural areas        
Forests 1,007,907 1,025,223 17,316 1.7
Shrub and herbaceous vegetation, semi-wooded land 769,911 756,429 -13,482 -1.8
Groups of trees and semi-wooded agricultural land, cultivated areas 64,561 62,265 -2,296 -3.6
Open spaces 803,671 799,405 -4,266 -0.5
Total of forests and semi-natural areas 2,646,050 2,643,322 -2,728 -0.1
Wetlands        
Inland wetlands 8,621 8,967 346 4.0
Water bodies        
Inland water bodies 173,845 173,969 124 0.1
Total expanse of Switzerland 4,128,476 4,128,476    

Interpretation example
According to area statistics for the period 1979 to 1985, the built-up zones of Switzerland covered 118,105 hectares. This figure had risen by 16.5% by the time of the second survey (1992 to 1997). The entire built-up area grew by 13.3% over the same period.

Comments
• The appendix shows how the area-statistics categories are assigned to each of 13 types of land use.
• The data record does not allow for any distinction between farmland and land left to pasture in the long term. In the case of long-term pasture land, Alpine farming areas are not included; these are assigned to the category denominated “shrub and foliage vegetation, cleared woodland”. Farmland in Switzerland covered an area of 404,604 hectares in 1985. This area had grown by 3.9% by 1996. By 2002, the amount of land being farmed was less than it had been in 1996.
• Almost two thirds of land surface consists of woodland and areas largely left to nature.
• Built-up areas have grown by about 13%.
• The area dedicated to fruit farms, vineyards and market gardens of long standing has shrunk by over 14%, due above all to the loss of mature fruit trees.
• While marginal areas of scrub and brush land are shrinking, those of thick woodland are growing.

 
 
Development in the Regions
 
The development in the six biogeographical regions  is dealt with in the full data sheet E2 (pdf, 1.4 MB).
 
 
Significance for biodiversity
 
Each of the 13 areas of defined use harbors specific communities of typical animal and plant species. Putting an area to different use changes the number and the combination of species living there. Providing information about the uses areas are put to, the E2 indicator also reports on habitat changes. However, it is not possible to directly deduce an increase or decrease in biodiversity from changes in areas of defined use. Such conclusions can only be drawn taking other BDM indicators into account as well.
 
 
Further Information
 
Responsible for E2
Meinrad Küttel, meinrad.kuettel@bafu.admin.ch, +41 (0)31 322 93 24

Additional source of information
> Website of the Federal Statistical Office
> Arealstatistik Schweiz (not available in English)
> Land Use Statistics/BDM assignment table: Complete data sheet E2 (Appendix, p.15)

 
 
Data sheets
 
> Complete data sheet E2 (1.5 MB)
 
 
Status
 

The next update will be made after finalization of the third Swiss Land Use Statistics, with surveys scheduled for the period of 2004 to 2009.

This information is based on the document 800 317.10 Produkt E2 V5_en.doc dated November 06, 2009.