Epsilon Archive for Student Projects

Abstract

Det svenska skogsbruket har under en tid haft problem med viltbete i ungskogen. Problemet är att när en plantas toppskott betas kan en krök bildas på plantan vilket ger en typ av nedklassning kvalitet längre fram i värdekedjan. Detta leder till en sämre ekonomi för skogsägaren. Ett sätt att minska betesskadorna är att behandla plantorna med viltreppelent. Idag finns fabrikat på marknaden som innehåller fettsyror från får. Det blir det intressant att testa huruvida fårull fungerar som ett viltbetesskydd.

Syftet med studien grundar sig i att kontrollera om planterade plantor kan skyddas mot viltbete med behandling fårull.

Åtta bestånd användes under studien där 40 provytor lades ut. De 40 olika ytorna bestod av 16 behandlade och 16 obehandlade ytor som var placerade i vardera väderstreck, och åtta ytor placerade i mitten av bestånden som ej behandlades. Ytornas placering gjordes subjektivt. Plantorna behandlades i oktober 2021 och resultatet räknades in i april 2022.

Resultatet vid analys av data visar att plantor behandlade med fårull hade en lägre andel betade plantor i jämförelse med de obehandlade plantorna (p < 0,001). Studier kopplade till användandet av fårull i skogsbruket återstår att studera i framtiden.

Swedish forestry has for some time had problems with game grazing in planted forests. The problem occurs when a plant's top shoots are grazed, a bend is formed on the plant, which gives a type of downgrading quality further down the value chain. This leads to a poorer economy for the forest owner. One way to reduce grazing damage is to treat the plants with game repellent. There are products on the market today that contain fatty acids from sheep, therefore it is interesting to test the sheep wool itself as a game repellent.

The main purpose with the study is based to scientifically prove that planted samplings can be protected against game grazing with sheep wool.

In the study eight stands were used and 40 different samples was subjectively laid out, five in each stand. Of these 40 different samples there was 16 treated and 16 untreated samples located in every latitude of the stand (north, east, south, west), eight stands were placed in the middle of the stand and was not treated with sheep's wool. The inventory and treatment of the plants started in October 2021 and the results were counted in April 2022.

The results show that when analyzing the data, it shows that plants treated with sheep's wool had a lower proportion of grazed plants compared to the untreated plants. Studies related to the use of sheep's wool in forestry remain to be studied in the future.