Essays about: "branch diameter"

Showing result 1 - 5 of 22 essays containing the words branch diameter.

  1. 1. The process behind the delimbing of trees

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Martin Sunnälv Persson; [2021]
    Keywords : Thinning; MATLAB; branch distribution; debranching; Gallring; MATLAB; grendistribution; avgrening;

    Abstract : In modern forestry, two types of machines are generally used for thinning, harvesters and forwarders. These machines are large and weigh several tens of tons, this means that they damage the ground when they drive around in the woods. READ MORE

  3. 2. Hybrid walnut : results from a five year field trial in southwest Sweden 2015-2020

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Stefan Juravle; [2020]
    Keywords : hybrid walnut; NG23; NG38; fertilization; fork; future crop tree; nurse trees;

    Abstract : A crossbreeding between american black walnut and Persian walnut lead to the development of a hybrid walnut (Juglans x intermedia). In a field trial from southwest Sweden have been tested the impact of different levels of nurse trees, fertilization and weed control on the early growth of two hybrid walnut varieties: NG23 and NG38. READ MORE

  4. 3. Phenotypic differences between plus-tree progenies of Sitka spruce (Picea sitchensis) and a comparison with Norway spruce (Picea abies)

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Teresa López-Andújar Fustel; [2019]
    Keywords : Picea sitchensis; growth; heritability; phenotypic and genetic correlations;

    Abstract : Forest productivity and economic gains are two of the most important aspects to consider when managing forests these days. The performance of these depends on rotation periods and yields providing new opportunities to maximize earnings from the forest site and plant material. READ MORE

  5. 4. Growth and timber quality evaluation of 33 European beech (Fagus sylvatica L.) provenances from a site in Southern Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : John Bergkvist; [2019]
    Keywords : trial; climate change; adaptation; growth; survival; Sweden;

    Abstract : This study aims to shed more light on the differences in growth and timber quality characteristics between European beech provenances at its northern distribution margin. Data was collected from a provenance trial established in 1998 in southern Sweden to determine the growth and development of 33 provenances of European beech (Fagus sylvatica L. READ MORE

  6. 5. Principles for Diverting and Merging Viscous Flows : Evaluation and Visualisation

    University essay from Uppsala universitet/Mikrosystemteknik

    Author : Åke Strese; [2017]
    Keywords : Flow splitter; chromatography; diversion; dispersion; laminar; fluid mechanics; MEMS; mock-up; design; delayloop; Mass rate attenuator MRA ; Flödessplitter; flödesdelning kromatografi; dispersion; laminära flöden; fluidmekanik; MEMS; mock-up; delayloop; kvarhållningssyste; mass rate attenuator MRA ;

    Abstract : In the chemistry branch of science is often a chromatograph usedto separate and purify substances in a solution. In achromatograph, different detectors are used to analyse the samplesconstituents. Some detectors destroy the sample during analysis. READ MORE