Essays about: "boreal forest"

Showing result 1 - 5 of 196 essays containing the words boreal forest.

  1. 1. 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

  2. 2. Lavspridning på hyggesbrända hyggen

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : David Persson; [2020]
    Keywords : artificiell; lavspridning; hygge; ren; renskötsel; renbete; hyggesbränning;

    Abstract : 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. READ MORE

  3. 3. Restoration strategies in boreal forests : prescribed burning and gap cutting effects on plant diversity and community composition

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Clara Espinosa Del Alba; [2020]
    Keywords : restoration ecology; boreal forest; fire; gap cutting; biodiversity; voluntary set-asides; vascular plants; bryophytes; forest management;

    Abstract : The boreal biome is one of the largest in the world and their forests have been widely exploited for centuries. Consequently, it has suffered ecological simplification and loss of biodiversity. Under these circumstances passive conservation is no longer enough and active restoration techniques need to be tested. READ MORE

  4. 4. Prescribed burning in Sweden : an evaluation of structural outcomes from restoration oriented prescribed burns

    University essay from SLU/Dept. of Ecology

    Author : Virginia Hermanson; [2020]
    Keywords : prescribed burning; restoration; boreal forest; biodiversity burning; dead wood;

    Abstract : The application of prescribed burning as a conservation measure is a growing trend in Fennoscandia to restore forest landscapes that have been heavily impacted by humans. Both intensive management for forestry and wildfire suppression altered the disturbances shaping boreal forests over the past centuries, which seen today are more homogenous, lacking dead wood and deciduous trees, and are in the successional process towards darker Picea abies (Norway spruce) dominated stands. READ MORE

  5. 5. Gallringens effekter på botten- och fältskikt i grandominerad produktionsskog : en studie av hur störning kan påverka β-diversitet i Norrland och Svealand

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : William Jaktén Langert; Andreas Widell; [2020]
    Keywords : biodiversitet; bottenskikt; fältskikt; störning; gallring; boreal skog;

    Abstract : Den boreala skogens beståndsstruktur har historiskt primärt präglats av brand, vilket skapat en flerskiktad beståndsstruktur. Störning är därför en avgörande faktor för artmångfald i dessa ekosystem. READ MORE