Sökning: "forestry"

Visar resultat 1 - 5 av 1143 uppsatser innehållade ordet forestry.

  1. 1. Går det åt skogen? : en diskursanalys över konflikten kring nyckelbiotoper

    Magister-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Josefine Palmgren; [2020]
    Nyckelord :nyckelbiotoper; skog; diskursanalys; omvänd naturvårdsgallring;

    Sammanfattning : Den här studien undersöker de konflikter som uppstått kring nyckelbiotoper. Trots att Sverige är tätt beskogat är idag skogens ekosystem hotade till den grad att varken de nationella eller internationella miljömålen angående sko-gen kan uppfyllas. LÄS MER

  2. 2. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Jonathan Peterson; [2020]
    Nyckelord :Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

    Sammanfattning : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. LÄS MER

  3. 3. Evaluated density estimates of young forest stands using high resolution 2D imagery from UAV

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Forest Resource Management

    Författare :Victor Kingstad; [2020]
    Nyckelord :UAV; forestry; inventory; survey; cleaning; tending; PCT; pre com-mercial thinning;

    Sammanfattning : After more than three decades of advanced technology and methods to evaluate young forest attributes, the forestry still prefers laborious field surveys in regenera-tion forests. Preceding studies have virtually all successfully identified the saplings, but the cost has outweighed the benefits or at least not yet convinced the companies to step away from the traditional field surveys; high-resolution photogrammetric point clouds and ALS-data can provide accurate estimations of the biophysical prop-erties but requires intense data processing. LÄS MER

  4. 4. Lavspridning på hyggesbrända hyggen

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :David Persson; [2020]
    Nyckelord :artificiell; lavspridning; hygge; ren; renskötsel; renbete; hyggesbränning;

    Sammanfattning : Den boreala skogen har under mycket lång tid präglats utav bränder. Innan människan började kontrollera skogsbränder var det en naturligt återkommande störning. Idag bekämpas och kontrolleras naturliga skogsbränder av människan för att skydda timmer i skogarna. LÄS MER

  5. 5. Evaluating abundance of deciduous trees in production forests along small stream : can Sweden meet current policy goals without intensive management

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Jessica Åström; [2020]
    Nyckelord :Riparian forests; small stream; strategic management objectives; deciduous; forest policy change;

    Sammanfattning : Riparian zones are important for many ecological functions such as for providing shade to streams and leaf litter to instream organisms, as well as acting as filters for sediments and excess nutrients that are released during forestry operations. Riparian areas are also important for preservation of biodiversity. LÄS MER