Cristin-resultat-ID: 1936411
Sist endret: 9. desember 2021, 11:55
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Anthropogenic and environmental drivers of vegetation change in southeastern Norway during the Holocene

Bidragsytere:
  • Anneke Theresia Maria ter Schure
  • Manon Juliette Andree Bajard
  • Kjetil Loftsgarden
  • Helge Irgens Høeg
  • Eirik Gottschalk Ballo
  • Jostein Bakke
  • mfl.

Tidsskrift

Quaternary Science Reviews
ISSN 0277-3791
e-ISSN 1873-457X
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Publisert online: 2021
Trykket: 2021
Volum: 270
Artikkelnummer: 107175
Open Access

Importkilder

Scopus-ID: 2-s2.0-85114158573

Klassifisering

Emneord

Arkeologi • Pastoralisme • Innsjøsedimenter • Paleolimnologi • Miljøendringer • Ancient DNA • Skandinavia • Dyrking • Holosen

Beskrivelse Beskrivelse

Tittel

Anthropogenic and environmental drivers of vegetation change in southeastern Norway during the Holocene

Sammendrag

Uncovering anthropogenic and environmental drivers behind past biological change requires integrated analyses of long-term records from a diversity of disciplines. We applied an interdisciplinary approach exploring effects of human land-use and environmental changes on vegetation dynamics at Lake Ljøgottjern in southeastern Norway during the Holocene. Combined analysis of pollen and sedimentary ancient DNA (sedaDNA) metabarcoding of the sedimentary sequence of the lake describes the vegetation dynamics at different scales, and establishes a timeline for pastoral farming activities. We integrate this reconstruction with geochemical analysis of the sediments, climate data, archaeological evidence of local human settlement and regional human population dynamics. Our data covering the last 10,000 years reveals consistent vegetation signals from pollen and sedaDNA indicating periods of deforestation connected to cultivation, matching the archaeological evidence. Multivariate analysis integrating the environmental data from geochemical and archaeological reconstructions with the vegetation composition indicates that the vegetation dynamics at Lake Ljøgottjern were primarily related to natural processes from the base of the core (in ca. 8000 BCE, Mesolithic) up to the Early Iron Age (ca. 500 BCE–550 CE), when agricultural activities in the region intensified. The pollen signal reflects the establishment of a Bronze Age (ca. 1800–500 BCE) farm in the area, while subsequent intensification of pollen concentrations of cultivated plants combined with the first sedaDNA signals of cultivation and pastoralism are consistent with evidence of the establishment of farming closer to the lake at around 300 BCE. These signals also correspond to the intensification of agriculture in southeastern Norway in the first centuries of the Early Iron Age. Applying an interdisciplinary approach allows us to reconstruct anthropogenic and environmental dynamics, and untangle effects of human land-use and environmental changes on vegetation dynamics in southeastern Norway during the Holocene.

Bidragsytere

Anna Theresia Maria Ter Schure

Bidragsyterens navn vises på dette resultatet som Anneke Theresia Maria ter Schure
  • Tilknyttet:
    Forfatter
    ved Centre for Ecological and Evolutionary Synthesis ved Universitetet i Oslo

Manon Juliette Andree Bajard

  • Tilknyttet:
    Forfatter
    ved Senter for Jordens utvikling og dynamikk ved Universitetet i Oslo
  • Tilknyttet:
    Forfatter
    ved Meteorologi og oseanografi ved Universitetet i Oslo

Kjetil Loftsgarden

  • Tilknyttet:
    Forfatter
    ved Arkeologisk seksjon ved Universitetet i Oslo

Helge Irgens Høeg

  • Tilknyttet:
    Forfatter
    ved Kulturhistorisk museum ved Universitetet i Oslo

Eirik Gottschalk Ballo

  • Tilknyttet:
    Forfatter
    ved Senter for Jordens utvikling og dynamikk ved Universitetet i Oslo
  • Tilknyttet:
    Forfatter
    ved Institutt for geofag ved Universitetet i Oslo
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