Essays about: "spruce wood"

Showing result 1 - 5 of 170 essays containing the words spruce wood.

  1. 1. Population dynamics of the spruce bark beetle Ips typographus in forest conservation areas and the interaction with biodiversity and natural enemies

    University essay from SLU/Dept. of Ecology

    Author : Evelina Andersson; [2023]
    Keywords : spruce bark beetle; population dynamics; conservation areas; biodiversity; natural enemies; species richness; managed forests; woodland key-habitats; nature reserves;

    Abstract : Biodiversity is rapidly decreasing and in need of more conservation efforts. However, the tree-killing European spruce bark beetle, Ips typographus (L.), has made forest conservation controversial by affecting conservation areas and possibly adjoining managed forests, yet is still a keystone species leaving decaying wood promoting biodiversity. READ MORE

  3. 2. Investigation of Milled Wood Lignin Extraction Using Enzymatic Hydrolysis for Application in Hydrophobic Barriers in the Food Packaging Industry

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Anna Wagne; [2023]
    Keywords : Lignin; extraction; hydrophobicity; chemical engineering; Technology and Engineering;

    Abstract : The objective of this report is twofold: to optimise the extraction method of lignin from spruce altering a few process parameters and to investigate the use of lignin as a hydrophobic barrier in food applications. The process used was STEX (steam explosion) pretreatment followed by enzymatic hydrolysis and MWL (milled wood lignin) extraction using a mixture of dioxane-water. READ MORE

  4. 3. Trendspaning på skogsintressenter – Lärk

    University essay from SLU/School for Forest Management

    Author : Malin Ullberg; Johan Knuts; [2023]
    Keywords : samhällsvetenskaplig studie; djupintervju; miljövänligt; alternativt träslag; klimatförändring; skogsbruk;

    Abstract : Med en medeltemperatur som ökar och ett torrare klimat till följd av klimatförändringar står det svenska skogsbruket inför utmaningar. Det torrare klimatet medför en ökning av skadeinsekter som gynnas av högre temperaturer och angriper de trädslag som utgör majoriteten av det svenska skogsbruket. READ MORE

  5. 4. A Cost Benefit Analysis of Continuous Cover Forestry in Djurholmen, Skåne

    University essay from Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Author : Moa Morency; [2023]
    Keywords : continuous cover forestry CCF ; clear-cut forestry CF ; cost-benefit analysis CBA ; ecosystem services; climate mitigation; timber production; Norway Spruce Picea abies ; Earth and Environmental Sciences;

    Abstract : Forests and forest products are important, not just for timber production, the forest ecosystem plays several important roles, such as water purification, carbon sequestration for climate mitigation and recreational values. How the forests are managed varies throughout the globe, in Sweden the most used system is the clearcutting system (CF), however continuous cover forestry (CCF) is gaining popularity and is being tested in several places. READ MORE

  6. 5. Xylem Water Filtration

    University essay from Lunds universitet/Industridesign

    Author : David Wenner; [2023]
    Keywords : Technology and Engineering; Arts and Architecture;

    Abstract : This project explored the usage and effectiveness of a natural water filtration system using xylem from Picea Abies, or Norway Spruce. The project is concentrated on the region of southeast and south Asia where people suffer from water contamination, providing a concept of a water filter with comprehensive protection against waterborne diseases. READ MORE