A threat is that some of the tree species that are important for the biodiversity are under a lot of pressure because of the high browsing activity. The Swedish forestry agency has now together with the forest industry set an acceptable level of browsing on production forest that 70% must be non-browsed when the stands are 5 meters or higher. To protect the production forest from browsing the landowner can choose from several options, the conventional way is yet to point treat every production plant with a game repellent, but that way isn’t very time saving as to treat with this new method.This study is trying out a new method to treat the whole stand instead of point treating every production plant. The method was to use a petrol mistblower (Stihl SR200) and treat one hectare with 9 litres of water and 1 litre of the game repellent Trico viltskydd. Two inventories were made, one before treatment and one after treatment. In total 200 sample surfaces of 2,82m in radius where collected, 100 of them where control surfaces. Every tree species in the sample surfaces where record and if it was or wasn’t browsed. The result of this study shown that the increase of browsing on all tree species was reduced with the treatment method. The new method shows that it can have positive effects on preserving the bio diversity.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:lnu-76633 |
| Date | January 2018 |
| Creators | Ljungar, Victor, Ottosson, Linnea |
| Publisher | Linnéuniversitetet, Institutionen för skog och träteknik (SOT), Linnéuniversitetet, Institutionen för skog och träteknik (SOT) |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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