Search for dissertations about: "forest structure"

Showing result 1 - 5 of 161 swedish dissertations containing the words forest structure.

  2. 1. Forest floor vegetation in Sweden : impacts of intensified forestry, nutrient addition and changes in forest structure

    University dissertation from ; Institutionen för sydsvensk skogsvetenskap, Sveriges lantbruksuniversitet

    Author : Per-Ola Hedwall; Sveriges lantbruksuniversitet.; [2012]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : In boreal forests, dwarf-shrubs (Vaccinium spp.) often dominate the forest floor and are key-stone species in ecosystems due to their importance for nutrient cycling and as a major food source for herbivores. Forestry affects the vegetation both directly through management and indirectly by altering the forest structure. READ MORE

  4. 2. Forest water governance challenges in cross-sectoral and multi-level collaboration

    University dissertation from Umeå : Umeå University

    Author : Irina Mancheva; Katarina Eckerberg; Anna Zachrisson; Susan Baker; [2020]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Forest water; Governance; Cross-sectoral governance; Multi-level governance; Governance mode; Collaborative governance; Natural resource management; Environmental policy; Water Framework Directive;

    Abstract : Forests and water are highly interconnected with forestry practices negatively affecting forest water. In the last five decades, the Swedish state has enacted multiple policy changes and allocated significant resources towards the implementation of soft policy instruments to alleviate the effects on forest water. READ MORE

  5. 3. Old-Growth Forests in the High Coast Region in Sweden and Active Management in Forest Set-Asides

    University dissertation from Sundsvall : Mid Sweden University

    Author : Jennie Sandström; Bengt-Gunnar Jonsson; Mattias Edman; Mikael Ohlson; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coarse woody debris; Dead wood; Dendrochronology; Fire history; Forest conservation; Forest structure; Log; Meta-analysis; Pine heath forest; Prescribed burning; Saproxylic fungi; Saproxylic beetles; Snag; Wood-inhabiting fungi; Aktiv skötselmetod; Bevarandebiologi; Brandhistorik; Dendrokronologi; Död ved; Hällmarkstallskog; Lågproduktiv skog; Meta-analys; Naturvård; Naturvårdsbrand; Skogsstruktur; Solbelyst död ved; Stock; Torraka; Vedlevande svamp; Vedlevande insekter; Åldersstruktur;

    Abstract : In today´s intensively managed landscape, very few forests with old-growth characteristics and little human impact exist. One of the rare exceptions is pine forests on rocky soils, a forest type which has probably escaped extensive human use because of its low productivity. READ MORE

  6. 4. Biomass Retrieval in Topographic Boreal Forest using Polarimetric and Tomographic SAR in P- and L-band

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Erik Blomberg; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Forest Biomass; Tomography; SAR; L-band; EM Modelling; P-Band;

    Abstract : Forests and their associated habitats are an integral part of Earth's biosphere and provide essential environmental services. There is an ever present need for accurate and economic monitoring of forest parameters such as biomass - of great interest both locally, for forest management and resource utilization, and globally as it represents stored atmospheric CO2 and one of the largest uncertainties in climate modelling. READ MORE

  7. 5. On the contribution of forest bioenergy to climate change mitigation

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Olivia Cintas Sanchez; [2016]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Forest bioenergy; forest management; climate change; energy systems.; GHG balances; forest supply; carbon budget;

    Abstract : Greenhouse gas (GHG) emissions have to be drastically reduced to keep global warming below 2 degrees. Bioenergy can play a role in climate change mitigation by substituting for fossil fuels. READ MORE