Sökning: "microbial ecology"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden microbial ecology.

  1. 1. Effects of 100 years of drainage on peat properties in a drained peatland forests in northern Sweden

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

    Författare :Mikaela Casselgård; [2020]
    Nyckelord :ash content; biodiversity; bulk density; carbon; climate; compaction; ditch; drainage; greenhouse gas emissions; groundwater level; isotopes; nitrogen; peatland; restoration;

    Sammanfattning : Natural peatlands provide a small but persistent long-term carbon (C) sink. However, within the last century their extent in Sweden has declined by about 1.5-2.0 million hectares due to drainage activities. LÄS MER

  2. 2. Effects of nitrogen quality and quantity on weed-crop competition : a greenhouse experiment with Avena sativa and Avena fatua

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Crop Production Ecology

    Författare :Lukas Hallberg; [2019]
    Nyckelord :weed-crop competition; resource pool diversity; soil microbes; weed community;

    Sammanfattning : The intensification of agricultural activities has provided unprecedented increases in crop production. In the light of this development concerns have been raised about its negative environmental impact. High-input farm management has further reduced the weed diversity and shaped weed communities to consist of a few highly competitive weed species. LÄS MER

  3. 3. Coral Fungia fungites- associated microbial communities and their shifts upon anthropogenic disturbances

    Master-uppsats, Uppsala universitet/LimnologiUppsala universitet/Institutionen för biologisk grundutbildning

    Författare :VASILIKI PAPAZACHARIOU; [2019]
    Nyckelord :coral microbiome; Fungia fungites; Microbiology; corals; antibiotics; 16S;

    Sammanfattning : One of the main focus of coral reef ecology has been to shed light on the importance of all microbial members of coral holobiont and how their interactions contribute to the coral’s resilience. However, knowledge is lacking about the composition of microbial communities inhabiting the surface mucus layer of corals including Fungia fungites, a species that lives under stressful conditions close to fish farms in Vietnam. LÄS MER

  4. 4. Microbial community responses to freeze : thaw cycles in active layer soils of permafrost tundra, Disko Island, Greenland

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Isabelle Gough; [2019]
    Nyckelord :microbial ecology; active layer soils; bacteria; fungi; permafrost system; amplicon-sequencing; QIIME2; FUN-guild; ; greenhouse gas fluxes; fluorogenic enzyme as-says;

    Sammanfattning : Permafrost affected soils are a vast pool of Carbon, storing around 1300Pg below the ground. As a result of climate change, permafrost soils that have been frozen for thousands of years are thawing, causing the ancient organic matter to be metabolised by microorgan-isms. LÄS MER

  5. 5. Bacterial and fungal responses to drying and rewetting using bronopol or cycloheximide as inhibitors

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Simon Lin; [2019]
    Nyckelord :Drying-rewetting; respiration; growth rate; growth response; Earth and Environmental Sciences; Biology and Life Sciences;

    Sammanfattning : Microbial decomposers breakdown soil organic matter, releasing carbon dioxide (CO2) to the atmosphere. This release of CO2 could therefore contribute to future climate change. LÄS MER