Sökning: "multi-proxy study"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden multi-proxy study.

  1. 1. Changes in lake-water organic carbon over recent centuries in northern Sweden, Västerbotten : Past and present mechanisms, and the potential implications on mercury

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

    Författare :Magnusson Petter; [2023]
    Nyckelord :Lake-water TOC; Summer forest farming; traditional agriculture; land-use; geochemistry; mercury;

    Sammanfattning : Due to the current increase in lake water total organic carbon (LW-TOC), many studies have investigated the long-term dynamics using lake sediments. However, these have mainly been focused on Sweden’s south and south-central parts. LÄS MER

  3. 2. Environmental change during the Holocene : A comparative multi-proxy study of landscape disturbances in Northern Sweden

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

    Författare :Mégane Capel; [2019]
    Nyckelord :Holocene; Lake-Water TOC; climate; lake sediment; vegetation;

    Sammanfattning : Varved lake sediments were used to provide information on how a landscape is affected by disturbances of different scales, from global (i.e. climatic) to local (i.e. LÄS MER

  4. 3. Artbestånden i fossila trädgårdskonstruktioner : En teoretisk studieav de dynamiska relationerna mellan växter, insekter och agromiljöer samt derasimplikationer för den arkeologiska tolkningen

    Magister-uppsats, Umeå universitet/Institutionen för idé- och samhällsstudier

    Författare :Hanna Larsson; [2017]
    Nyckelord :Paleoentomology; archaeobotany; garden archaeology; multi-proxy study; indicator groups; fossil insects and host plants; paleoentomologi; arkeobotanik; trädgårdsarkeologi; fossila insekter; värdväxter;

    Sammanfattning : The purpose of this paper is to evaluate the possibility of paleoentomology as a proxy in garden archaeology research. Garden contexts can prove difficult to identify and interpret due to the many changes the contexts go through during their activity period. LÄS MER

  5. 4. Effect of historical land-use on lake-water carbon and geochemistry: : A multi-proxy study of two lake sediment profiles in Dalarna throughout the Holocene

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

    Författare :Florian Muthreich; [2016]
    Nyckelord :lake-water TOC; summer farming; forest grazing; sediment geochemistry;

    Sammanfattning : This study examines changes in lake-water total organic carbon (LW-TOC) and lake sediment geochemistry in two lakes, Stångtjärnen and Holtjärnen in (Dalarna, Sweden), during the Holocene and the role of the historic forest grazing and farming (fäbod-system). The aims of the study were to: 1. LÄS MER

  7. 5. The effects of population growth on Ecosystem services in lake Ekoln : A multi-proxy data analysis of a lake core and historical records.

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

    Författare :Douglas Kilpatrick; [2016]
    Nyckelord :Ecosystem services; Population growth; Species diversity; Water quality; Environmental reconstruction.;

    Sammanfattning : Throughout human history man has utilized the environment to varying degrees, depending on technology and population. These ¨ecosystem services¨ have suffered sustained degradation over the centuries, resulting in large investments having to be made to prevent and reverse further changes to the environment. LÄS MER