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Showing result 6 - 10 of 22 essays matching the above criteria.

  1. 6. Kan skogsgödsling effektiviseras med hjälp av SLU Markfuktighetskarta?

    University essay from SLU/School for Forest Management

    Author : Sofi Dahl Wallin; Emelie Garefelt; [2021]
    Keywords : tillväxt; skogsmark; markfuktighetsklass;

    Abstract : Den bristande tillgängligheten på kväve hämmar många av de boreala och tempererade skogarnas tillväxt. Att gödsla med kväve har visat sig vara en av de mest effektiva produktionshöjande åtgärderna för att öka skogens avkastning. Gödslingsaktiviteten i Sverige kom att öka som mest under 1970-talet. READ MORE

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

    University essay from SLU/Dept. of Forest Resource Management

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

    Abstract : 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. READ MORE

  4. 8. Kostnadsanalys och kvalitetskontroll av markberedning på blockiga/steniga marker

    University essay from SLU/School for Forest Management

    Author : Daniel Samuelsson; Mikael Wiik; [2020]
    Keywords : markbehandling; grävmaskin; planteringspunkter;

    Abstract : Studien är ett uppdrag från Orsa besparingsskog och arbetet omfattar 15 högskolepoäng. Syftet med undersökningen var att jämföra resultatet för tre olika grävmaskiner som använts vid markberedning i blockrik terräng. I uppdraget låg också att jämföra vilken av två givna inventeringsmetoder som gav säkrast resultat. READ MORE

  5. 9. Evaluation of wildlife acoustic survey as a method to estimate bird habitat quality

    University essay from SLU/Dept. of Ecology

    Author : Monica Ericson; [2020]
    Keywords : birds; soundscape; habitat quality; behavior; recording; Kaleidoscope Pro; SongMeter4;

    Abstract : In the world of birds, the sound says it all. The song, the alarm call, the flight call, and the call for a mate, all makes up a soundscape telling their friends and foes of their condition, mate status and tells the predator that its presence is noticed. READ MORE

  6. 10. Sambandet i tallungskog mellan skötselmetod och älgbetesskador

    University essay from SLU/School for Forest Management

    Author : Christian Tunell; [2019]
    Keywords : betestryck; toppskottsbete; stambrott;

    Abstract : Moose cause major problems in our young pine forest stands. This study is trying to investigate the casual reactions of damages to stands and to individual trees caused by moose. The study is based on data from 16 objects in Vemhåns Moose Management Area. READ MORE