Essays about: "soil layer"

Showing result 21 - 25 of 163 essays containing the words soil layer.

  1. 21. Loess in southwestern Sweden. Determining the genesis of the silt-rich layer rödfemman in Svartedalen nature reserve

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Fanny Ekström; Anna Hedeving; [2021-10-28]
    Keywords : Loess; silt; grain-size distribution; bimodal; Optically Stimulated Luminescence OSL ; p-XRF; spatial distribution; paleowind;

    Abstract : The presence of loess in Sweden is relatively unexplored and has only been found in a few places. Loess acts as a paleoclimatic proxy, which in times of changing climates, is highly relevant. READ MORE

  3. 22. Acid sulphate soils and its influence on metal concentrations in adjacent water bodies. - A case study from Halland, SW Sweden

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Amanda Lindgren; [2021-03-10]
    Keywords : acid sulphate soils; metal distribution; surface water; climate; physicochemistry;

    Abstract : Acid sulphate soils have been referred to as being among the most harmful soils in the world due to their ability to severely decrease the pH of the water, consequently enabling an increased metal load to recipient water streams, lakes, groundwater reservoirs and estuaries. The presence of acid sulphate soils has triggered several fish kill episodes in northern Scandinavia and the soils are today threatening many of the national environmental goals of Sweden. READ MORE

  4. 23. Influence of permafrost disintegration on wetland carbon fluxes in Abisko, Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Aida Esmailzadeh Davani; [2021]
    Keywords : Physical Geography; Ecosystem Analysis; Permafrost; CH4 flux; CO2 flux; Abisko; Wetlands; Earth and Environmental Sciences;

    Abstract : The northern permafrost regions are experiencing a rapid warming as surface temperatures are rising, causing a disintegration of permafrost and a deepening of the active layer (AL). This releases previously frozen carbon, making it available for decomposition by microbes. READ MORE

  5. 24. Post-Wildfire Debris Flows: Mapping and Analysis of Risk Factors in Western North America

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Annejet Tuinstra; [2021]
    Keywords : wildfires; debris flows; water repellent soil; North America; skogsbränder; jordskred; vattenavvisande jordlager; Nordamerika;

    Abstract : Climate change is leading to in an increase in frequency and severity of wildfires, which in turn can result in the formation of runoff-initiated post-wildfire debris flows. This type of debris flows is, like most debris flows, triggered by heavy precipitation events. READ MORE

  6. 25. Järnets flora – en undersökning av vegetationsutvecklingen vid Röda Jorden

    University essay from SLU/School for Forest Management

    Author : Gunnar Abrahamsson; Jonathan Abrahamsson; [2021]
    Keywords : flora; holocen; pollenanalys;

    Abstract : Röda Jorden är ett kulturhistoriskt besöksområde i Skinnskattebergs kommun. På platsen finns förhistoriska järnframställningslämningar som daterats till 700 år före vår tideräkning. Idag finns en aktivitetsplats som drivs av Riddarhyttans Hembygds- och intresseförening, ”RHI”. READ MORE