Essays about: "bark"

Showing result 1 - 5 of 173 essays containing the word bark.

  1. 1. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Jonathan Peterson; [2020]
    Keywords : Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

    Abstract : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. READ MORE

  2. 2. Solutions to Close an Informal Dumpsite in Debre Berhan, Ethiopia

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser; Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Emma Bark; Malin Jonsson; [2020]
    Keywords : Informal Dumpsite; Ethiopia; Debre Berhan; Developing Countries; Closure Methods; Solid Waste Management;

    Abstract : The rapid urbanisation in developing countries has outran the deployed financial and manpower resources that are supposed to handle public utility services in cities. One important service is solid waste management. READ MORE

  3. 3. Detecting bark beetle damage with Sentinel-2 multi-temporal data in Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Shuo Yang; [2019]
    Keywords : Physical Geography and Ecosystem Analysis; Remote Sensing; Bark Beetle; Insect Detection; Sentinel-2; Forest Health; Maximum Likelihood; Random Forest; Spectral Signature; Vegetation Indices; Earth and Environmental Sciences;

    Abstract : The European spruce bark beetle is considered as one of the most destructive forest insects to Norway spruce trees in Europe. Climate change may increase the frequency and intensity of bark beetle outbreaks. It is therefore of vital importance to detect the bark beetle outbreaks and take it under control to prevent further damages. READ MORE

  4. 4. Saproxylic beetles in Populus tremula fauna depots - how do you construct the best depot?

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Simon Selberg; [2019]
    Keywords : aspen; populus; tremula; saproxylic; beetle; fauna; depot; species; richness; abundance; diversity; cwd; course; woody; debris; forest; asp; populus; tremula; vedlevande; skalbagge; fauna; depå; art; mångfald; diversitet; död; ved; cwd; skog;

    Abstract : The biodiversity of saproxylic organisms and in the case of this study, saproxylic beetles, is dependent on the amount and quality of course woody debris (CWD) in the environment. Over the past decades the quantity of CWD in Swedish forests has increased, yet the quality has decreased, forests are managed and exploited, and old-growth forests are rarer. READ MORE

  5. 5. Community structure of polyporous fungi after wildfire in boreal forest

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

    Author : Isak Vahlström; [2019]
    Keywords : biodiversity; community composition; natural disturbance; forest fire; polyporous fungi; ; wood-decaying fungi;

    Abstract : Wildfire is a natural disturbance that creates large amounts dead wood and contribute to a landscape of different successional stages, important for biodiversity. The number of wildfires have declined in boreal Fennoscandia due to effective fire suppression. READ MORE