Sökning: "nutrient depletion"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden nutrient depletion.

  1. 1. Kontinuerlig rötning med hydrokol för högre biogasutbyte

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Annette Kariis; [2023]
    Nyckelord :Biogas; Continuous anaerobic digestion; Hydrochar; Hydrothermal Carbonisation; Life-cycle costing; Biogas; kontinuerlig anaerob rötning; Hydrokol; Hydrotermisk karbonisering; Livscykelkostnad;

    Sammanfattning : Befolkningsökningen och därmed efterfrågan på energikällor som tillhandahålls från fossila bränslen leder till allvarliga miljöproblem på grund av utsläpp av växthusgaser. En annan utmaning är att effektivt hantera organisk avfall som till exempel matavfall som genereras världen över. LÄS MER

  3. 2. Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Duncan Jones; [2023]
    Nyckelord :Geography; Geographical Information Systems; GIS; Habitat Modelling; Harbour Porpoise; MaxEnt; Tidal Processes; Conservation; Earth and Environmental Sciences;

    Sammanfattning : Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall Abstract Unintentional by-catch in fishing gear is a significant cause of mortality of harbour porpoises in UK waters. Understanding the spatial distribution of harbour porpoises at fine scales and how this changes over time is essential when trying to understand where these lethal interactions might occur. LÄS MER

  4. 3. Influence of surface water availability on the distribution of White Rhinoceros in central Greater Kruger

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Julie Mauguiere; [2022]
    Nyckelord :White Rhinoceros; Ceratotherium simum; water provisioning; artificial water; ecological processes; habitat selection; spatial ecology; landscape use; KNP; APNR; SAWC;

    Sammanfattning : The population of white rhinoceros (Ceratotherium simum simum) is now declining in the Kruger National Park (KNP) in South Africa due to the intense poaching crisis ongoing since the early 2000s. The need for an efficient conservation effort has never been greater and requires a better understanding of white rhinoceros distribution in the landscape. LÄS MER

  5. 4. Assessment of the Agroecological Potential of Biostimulatory Effects : originating from Effective Microorganisms (EM) in terms of Environmental and Socioeconomic Aspects

    Master-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Tania Schwarzer; [2022]
    Nyckelord :effective microorganisms; agroecology; biostimulants; beneficial microorganisms; lactic acid bacteria; bokashi; semi-structured interviews; interpretative phenomenological approach;

    Sammanfattning : Environmental pollution, resource depletion and climate change are related to imbalances in the farming system. Effective microorganisms are seen as a possible solution to these problems. LÄS MER

  7. 5. Long-term phosphorus trends in Swedish rivers and streams : widespread and persistent nutrient decline

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Sara Camiolo; [2021]
    Nyckelord :eutrophication; rivers; streams; phosphorus;

    Sammanfattning : Phosphorus (P) is often considered the limiting nutrient for freshwater productivity because of its relevant role in regulating algal production and determining community composition. The concern for increasing anthropogenic P inputs registered since the last century has shaped environmental policies around the world to limit the effects of algal bloom (also known as eutrophication) in freshwater ecosystems through the establishment of maximum threshold nutrient concentrations. LÄS MER