REMOTE SENSING OF VEGETATION DAMAGE. EFFECTS OF OFF ROAD CAR-TRAFFIC

FJAERRANALYS AV MARKPAAVERKAN. EFFEKTER PAA MEDELLAANG SIKT AV TRAFIK UTANFOER VAEGNAETET

Five test areas on the island of Oeland (off sw Sweden, since 1972 connected to the mainland with a 6000 meter long bridge) were chosen to represent regions dominated by limestone heath vegetation, rubble-stone coasts, drought-resistent vegetation on sea shore ridges and moist meadow vegetation. They should also represent agriculture and tourist regions. Black and white air photos were used and analysed with magnifier and stereo-viewer with up to 16 times enlargement. Within two test areas on the nw coast (tourist area) certain regions - most of them close to the coast - have been gradually damaged on the vegetation cover by car-traffic. Two test areas represent the transition zone between arable land and stora alvaret (great limestone heath). They are not very attractive for recreation. Tracks from the period 1959-1972 in the nw part of stora alvaret could have been caused by traffic connected with sheep grazing. Within the test area along the eastern coast (agricultural land), parts of the coast with easy access to car-traffic have been gradually damaged on sea shore ridges, and moist vegetation by traffic connected with bathing and outdoor recreation. Tracks created and used for a certain period cause permanent damage to vegetation. When and if the traffic ceases, some plant species will regenerate rapidly even after intense use, while others are quickly damaged even by small traffic volumes and regenerate very slowly after the traffic has ceased. Car-traffic on vegetation during long periods (some twenty or thirty years) results in permanent damage to plant colonies and species. (TRRL)

  • Availability:
  • Corporate Authors:

    Stockholm University, Sweden

    Kulturgeografiska Institutionen, Box 6801
    S-11385 Stockholm,   Sweden 
  • Authors:
    • Bohlin, O E
  • Publication Date: 1977

Language

  • Swedish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00317039
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM