Sökning: "stream ecosystem"

Visar resultat 1 - 5 av 41 uppsatser innehållade orden stream ecosystem.

  1. 1. Riparian plant biodiversity and community composition of ditches and straightened streams : identifying key environmental drivers in a boreal forest setting

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Rasmus Staaf; [2024]
    Nyckelord :artificial waterways; riparian zone; novel ecosystems; ; forestry; ditch network maintenance; species richness; hill-diversity; drainage ditches; coarse woody debris; ditch cleaning; ecology;

    Sammanfattning : Modified ecosystems are typically seen as degraded and having no ecological value. In many cases, the modification of the ecosystem was done more than 100 years ago and may have had time to recover and become a refugia for species that were once more common in the landscape. LÄS MER

  3. 2. Evaluation of the challenges and opportunities of Vehicle-to-Grid technology and the potential revenue streams for BEV fleet owners and aggregators

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Lukas Strandberg; Madeleine Sandberg; [2023]
    Nyckelord :Vehicle-to-Grid; Grid flexibility; Capacity markets; Barriers; Fordon-till-nätteknologi; Elnätsflexibilitet; Kapacitetsmarknader; Barriärer;

    Sammanfattning : The increasing amount of renewable energy being connected to the power grid, and the intermittent nature of these resources, calls for increased grid flexibility to ensure operational safety and stability. An effective solution to address this need could be through wider implementation of various energy storage technologies. LÄS MER

  4. 3. Riparian vegetation ecology : an observational study into the effects of forest management on understory vegetation communities along boreal headwaters

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Ruben Jonathan Baan Hofman; [2023]
    Nyckelord :riparian forest; forest management; understory vegetation; headwater streams; community ecology;

    Sammanfattning : Riparian forests along headwater streams have long been recognized for their role as an interface between the terrestrial and aquatic ecosystem. The over- and understory vegetation performs essential ecological and biochemical functions, which are important for stream functions. LÄS MER

  5. 4. Flow modeling and bank erosion downstream due to spillway discharge : Independent thesis Advanced level (professional degree) 30 ECTS credits

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för beräkningsvetenskap

    Författare :Alexander Lindblad; [2022]
    Nyckelord :Ansys Fluent; Multiphase Flow; Spillway; CFD; Volume of Fluid; Reynolds-averaged Navier-Stokes;

    Sammanfattning : Dam spillways and downstream areas are used to guide large flows of water during for example heavy rainfall. The large flows give way to turbulent pattern sand velocities that may damage the river banks or the dam structure. Investigation of these water patterns at certain flows are therefore done to examine at risk areas. LÄS MER

  7. 5. Riparian forests : a comparison of tree diversity, deadwood and canopy cover between primary and production riparian forests along headwaters

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Eric Lundqvist; [2022]
    Nyckelord :riparian forest; primary forest; production forest; tree diversity; deadwood; canopy cover;

    Sammanfattning : Headwaters and their adjacent riparian forests (RF) have been recognized for years for their tight interlinkage and essential ecological and biogeochemical services. Notwithstanding, headwaters in Sweden have historically been overlooked in forest management, which has led to conifer-dominated RFs with simplified even-age structure. LÄS MER