Invasiva växtarter och främmande vedartade trädgårdsväxter på nedlagda deponiområden i Sölvesborgs kommun, Blekinge län

Translated title of the thesis: Invasive plants and non-native woody garden plants on discontinued landfill sites in the municipality of Sölvesborg, Blekinge county
  • Lillemor Ekblom

Student thesis: Bachelor


Invasive plants, garden plants and landfills all have a cultural connection, and their presence often sooner or later coincide. The aim of the study was to do an inventory of plants on disused landfill areas to see if there is a connection between the landfill contents and the presence of these plants.
According to Naturvårdsverket (2021a) invasive species belong to two classifications; those subject to a ban import, cultivation and sale, and those that are not banned, but which people are encouraged to prevent the spread of, within and beyond their properties.
Methodologically, the study is based on desk- and fieldwork. Out of 27 disused landfills in the municipality of Sölvesborg, 6 were selected after a map review to be digitized and field work carried out. The criterion was that the disused landfills areas were active during 1960, the year from which Lantmäteriet´s historical orthophotos were available. Based on the digitizing the extent of the survey areas at the 6 landfills were outlined, within which an inventory of selected invasive and woody garden plants was carried out.
The following invasive plants were found in five of the six selected landfills areas: Giant hogweed Heracleum mantegazzianum, Golden rod Solidago canadensis, Japanese knotweed Reynoutria japonica and Rugosa rose Rosa rugosa, together covering an estimated total area of 1500 m². The woody garden plants included in the study had an estimated total area of 3500 m². The most common landfill contents were waste from household.
The strong presence of the invasive Giant hogweed in one disused landfill area, has to be urgently addressed. The presence of the other invasive plants found within the municipality´s disused landfills needs to be addressed in a future action plan. The presence of woody garden plants at the landfills is so large that they threaten to affect the native ecosystem.
Date of Award2021-Dec
Original languageSwedish
SupervisorJohan Elmberg (Supervisor) & Joachim Regnéll (Examiner)

Educational program

  • Landscape Science Programme

University credits

  • 15 HE credits

Swedish Standard Keywords

  • Other Earth and Related Environmental Sciences (10599)


  • Invasive plants
  • Garden plants
  • Disused landfill sites
  • Inventory of plants
  • ecology

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