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Utveckling av kostnadseffektiv skogsföryngring
2015 (Svenska)Självständigt arbete på avancerad nivå (yrkesexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
Abstract [en]

According to 5§ in Swedish forestry act a new forest has to be established when the area’s tree production is on not acceptable levels. Site preparation is normally made after final felling in order to create a better regeneration environment. Today there are three leading ways to regenerate forests in Sweden: Natural regeneration with seed trees, seeding combined with site preparation and planting preceded by site preparation. Sveaskog Förvaltnings AB and SweTree Technologies AB have together developed a device named SeedPADTM to reduce the cost for reforestation. SeedPADTM is a unit where a highly germinated seed is placed together with nutrient rich substrate in a thin, cylindrical disc with paper on top and bottom. The advantage with SeedPADTM is primarily the reduced evaporation from the soil creating a moist environment for the seed. SeedPADTM could primarily replace direct seeding but could also replace the natural regeneration and planting. By developing a tool to that streamlines the task of placing SeedPADTM on forest lands, productivity can increase from today’s rate of 5 500/day to 14 000 pieces correctly placed per day. In addition, the new tools allows for placing of SeedPADTM in any weather condition. Compared to today’s cost of placing SeedPADTM at afforested sites, the developed tool provides a reduced labor cost of a minimum of 1 100 SEK ($130) per day.

Ort, förlag, år, upplaga, sidor
2015. , 55 s.
Nyckelord [en]
Technology
Nyckelord [sv]
Teknik, skogsföryngring, seedpad, skogsplantering
Identifikatorer
URN: urn:nbn:se:ltu:diva-47328Lokalt ID: 4e26ed9b-b0f2-4316-814f-3372792d34f0OAI: oai:DiVA.org:ltu-47328DiVA: diva2:1020648
Externt samarbete
Ämne / kurs
Examensarbete, minst 30 hp
Utbildningsprogram
Civilingenjör, Maskinteknik
Handledare
Examinatorer
Anmärkning
Validerat; 20150616 (global_studentproject_submitter)Tillgänglig från: 2016-10-04 Skapad: 2016-10-04Bibliografiskt granskad

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Totalt: 47 träffar
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