Sökning: "pH"

Visar resultat 1 - 5 av 1163 uppsatser innehållade ordet pH.

  1. 1. Acid sulphate soil in Falkenberg on the west coast of Sweden - The first discovery of active acid sulphate soil outside the Baltic Basin

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Ida Kling Jonasson; [2020-09-09]
    Nyckelord :Acid sulphate soil on the Swedish west coast; formational environment; Tapes transgression; Resistivity measurements; Baltic Basin;

    Sammanfattning : Active AS soil has several negative impacts on the environment due to their ability to severely decreasepH-values and mobilize metals bound in the soil. The negative impacts can especially be seen in aquaticenvironments that drains an active AS soil. LÄS MER

  2. 2. Mercury and methyl mercury release in soil and water - their relationship with different properties in Skogaryd

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Linnéa Johansson; [2020-07-08]
    Nyckelord :mercury; methylmercury; demethylation; pH; dissolved oxygen and total organic content;

    Sammanfattning : In Skogaryd research site, water samples were taken and analysed for total mercury (Hgtot) andmethylmercury (MeHg) concentration along with the pH, dissolved oxygen (DO) and total organiccontent (TOC). This to give the condition of the site before the forest is clear-cute and a part of theland rewetted to a wetland. LÄS MER

  3. 3. Hydrological catchment analysis from characterisation of organic matter in stream water

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Hannes Berg Wiklund; [2020-02-05]
    Nyckelord :Organic matter; Time-of-flight mass spectrometry; aquatic chemistry; catchment hydrology;

    Sammanfattning : Organic matter (OM) in aquatic systems is a complex field which have rapidly developed duringthe last decade due to the introduction of high resolution mass spectrometers. The compositionof OM in the aquatic environment is directly dependent on factors such as oxygen supply, pHand the flow rate in the local system. LÄS MER

  4. 4. A window to the future of Sweden’s pine forestry? : development of declining Scots pine after a severe drought and the presence of Diplodia sapinea

    Master-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Matilda Stein Åslund; [2020]
    Nyckelord :Pinus sylvestris; Scots pine; Diplodia sapinea; Sphaeropsis sapinea; Diplodia pinea; drought; climate change;

    Sammanfattning : Swedish forestry is dominated by uniform conifer stands, a structure generally more susceptible to biotic and abiotic stressors. Among the agents causing forest decline, pathogenic fungi have the most substantial impact. LÄS MER

  5. 5. Grundläggning av ny bro på postglacial lera i Uppsala

    Kandidat-uppsats, Malmö universitet/Fakulteten för teknik och samhälle (TS); Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Författare :Samuel Nilsson; Ilir Tahiri; [2020]
    Nyckelord :Postglacial lera; Lös lera; Sulfidhaltig lera; Pålning; Empiriska geotekniska samband; Postglacial clay; Loose clay; Sulphide clay; Pilling; Empirical geotechnical relationships;

    Sammanfattning : I detta examensarbete har en geoteknisk utredning utförts för att bedöma ifall grundläggning aven bro över Fyrisån i Uppsala kan utföras på enklaste sätt, genom plattgrundläggning. Arbetethar grundats på att undersöka hur grundläggningen styrs av den postglaciala lerans tekniskaegenskaper. LÄS MER