Sökning: "Subsoil"

Visar resultat 1 - 5 av 32 uppsatser innehållade ordet Subsoil.

  1. 1. Soil Organic Carbon in Boreal Agricultural Soil : Tillage interruption and its effect on Soil Organic Carbon

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Hilda Alfredsson; [2023]
    Nyckelord :soil organic carbon; agriculture; tillage interruption; carbon sequestration;

    Sammanfattning : Farmers have been disrupting the carbon cycle ever since humans started converting forests to agricultural lands. But are there farming practices that can be applied to increase the carbon storage in the soil and subsequently counteract increasing carbon dioxide levels in the atmosphere? In this study I investigate if soil organic matter (SOM) and soil organic carbon (SOC) change with longer interruption between tillage events. LÄS MER

  3. 2. Apalsjöns kulturhus och folkhögskola

    Kandidat-uppsats, KTH/Arkitektur

    Författare :Daniel Söderberg; [2022]
    Nyckelord :Kulturhus; folkhögskola; stampad jord; ramed earth; torv;

    Sammanfattning : Project about building of site sourced  material, ex. subsoil and peat. Public building and educational building including student dormitory.  . LÄS MER

  4. 3. Timber pile-supported road embankment : Numerical and analytical analysis of field monitoring project E4 Råneå

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Geoteknologi

    Författare :Kent Nystedt; [2022]
    Nyckelord :Geosynthetic reinforcement; Geosynthetic reinforced pile supported embankment; Pile distance; Embankment height; Finite element method; Pile efficacy;

    Sammanfattning : The previous E4 Råneå road embankment was prone to flooding. Risk of flooding in combination with settlements of the road due to the weak underlying sulphide soil was problematic. The Swedish Transportation Administration improved the length section E4 Råneå by rebuilding the road using the method light embankment piling. LÄS MER

  5. 4. Gyllins trädgårds alléer och kulturella ekosystemtjänser : en underlag- och platsanalys

    Kandidat-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Lovisa Jakobsson; [2021]
    Nyckelord :Gyllins trädgård; Husie; Malmö; allé; alléer; ekosystemtjänster; kulturella ekosystemtjänster; hamling;

    Sammanfattning : Alléer i landskapet bidrar med ett flertal viktiga ekosystemtjänster och nyttor för oss människor och den biologiska mångfalden. Genom att skapa dessa möjligheter är äldre alléer skyddade enligt biotopsskyddslagen. LÄS MER

  7. 5. 2D Modelling of Geosynthetically Reinforced Piled Embankments : Calibration Methods in PLAXIS 2D & Review of Analytical Guidelines

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Maya Sleiman; [2021]
    Nyckelord :;

    Sammanfattning : This thesis focuses on the 2D modelling of Geosyntheticaly Reinforced Piled Embankments (GRPE) in PLAXIS 2D. In doing so, it explores two main aspects: 1) the calibration of Interface Stiffness Factors (ISFs) governing the soil-pile interaction of Embedded BeamRow (EBR) elements in PLAXIS 2D, and 2) the prospects and limitations of modelling geogrids (GR) in PLAXIS 2D when underlain by EBR elements; although several studies have validates the EBR element in modelling piles, none address the geogrid-EBR interaction and its implications on modelling GRPE systems. LÄS MER