Essays about: "what are trees"

Showing result 11 - 15 of 314 essays containing the words what are trees.

  1. 11. The restoration period : a new era in forestry

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Ester Andersson; [2023]
    Keywords : historical forest management; past logging; restoration;

    Abstract : In the last 200 years the boreal forests of Sweden have undergone a dramatic transformation. After a long history of high grading the largest trees foresters grew increasingly concerned about the state of logged over forests. The big question was how to regenerate and increase the productivity of sparse forests. READ MORE

  3. 12. Fungal Effects on Tree Growth in a Primary Succession

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : August Hedberg; Julian Säflund; [2023]
    Keywords : primary succession; succession; ectomycorrhiza; saprotroph; tree growth; Pinus sylvestris; soil fungi;

    Abstract : In the Boreal zone, ectomycorrhiza is the most common mycorrhiza found among trees and helps with nitrogen and nutrient uptake. Most research on mycorrhiza, its effect, and community development are done on secondary succession (succession in an ecosystem after a disturbance) such as after a clearcut. READ MORE

  4. 13. Modeling German Energy Market Hourly Profiles with a Focus on Variable Renewable Energy

    University essay from Lunds universitet/Nationalekonomiska institutionen; Lunds universitet/Statistiska institutionen

    Author : Vincent Ball; Thomas Pegoraro; [2023]
    Keywords : Energy Market; Energy Prices; Renewable Energy; Machine Learning; Business and Economics;

    Abstract : This paper investigates the best methods for modeling hourly profiles in the German energy market for the period between 2018 and 2022. Modeling emphasized variable renewable energy (VRE) and included information on the level of energy production, oil price, COVID lockdowns, and historic hourly energy spot prices. READ MORE

  5. 14. Mikrohabitat i träd : veteranisering i stadsmiljö och stadsnära miljöer

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Linnéa Björndahl; Wilma Ruckle; [2023]
    Keywords : habitatskapande; veteranträd; TreMs; biodiversitet; död ved; trädskador; trädskötsel;

    Abstract : Det finns i dagsläget en brist på gamla träd som är rika på mikrohabitat vilka inhyser många rödlistade arter. Utöver detta finns även ett stort åldersglapp mellan dagens unga och gamla träd vilket innebär att det kommer saknas ersättare för de viktiga mikrohabitaten när de gamla träden dör. READ MORE

  6. 15. Identifying training needs for the implementation of Continuous Cover Forestry in Sweden

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Lydia Kruse; [2023]
    Keywords : Marteloscope; Thinning type; Conitnuous Cover Forestry; Frame tree; Human behaviour;

    Abstract : In recent decades, continuous cover forestry (CCF) has been (re-)discovered as an important toolbox for promoting biodiversity, helping to deliver a range of ecosystem goods and services as well as to satisfy the needs of various stakeholders. CCF is based on ecological principles and one of its most important tenets is the abandonment of large-scale clearfelling. READ MORE