Sökning: "peat stratigraphy"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden peat stratigraphy.

  1. 1. Reconstructing Mid-Late Holocene Arctic Climate Using Loess Deposits From Kangerlussuaq, Greenland

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :William Mörtsjö Zung; [2023]
    Nyckelord :;

    Sammanfattning : The current geological epoch, the Holocene, began 11,700 years ago. During this time, a thermal maximum in temperature was reached somewhere during the early-middle stage at 8-5 kyrs ago which was followed by a period of neoglacial cooling, culminating in the little ice age (LIA). LÄS MER

  3. 2. Ice advance-retreat sediment successions along the Logata River, Taymyr Peninsula, Arctic Siberia

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Martin Bernhardson; [2013]
    Nyckelord :Sibirien; Tajmyrhalvön; Weichselian glaciation; Ice advance-retreat stages; Russia; Taymyr Peninsula; Siberia; Ryssland; isframstötar-isreträtter; Weichselistiden; Earth and Environmental Sciences;

    Sammanfattning : A number of sites were investigated in river sections along the Logata River on the Taymyr Peninsula, Russia, and its adjacent areas to shed more light on the glaciation history over the last glacial cycles. The sediments exposed at the investigated sites are correlated and put into a local stratigraphic scheme divided into five main units. LÄS MER

  4. 3. Peat stratigraphical study of hydrological conditions at Stass Mosse, southern Sweden, and the relation to Holocene bog-pine growth

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Linda Adamsson; [2013]
    Nyckelord :tall; mosse; klimatförändringar; palaeoecology; macrofossil analysis; pines; climate change; bog; makrofossilanalys; paleoekologi; Earth and Environmental Sciences;

    Sammanfattning : Sammanfattning: Torvhorisonter med stora mängder subfossila stubbar och rötter av tall (Pinus sylvestris) förekommer ofta i nordeuropeiska torvmossar. De visar att mossarna varit tallbevuxna under delar av Holocen. LÄS MER

  5. 4. Klimatets och människans inverkan på tallens etablering på sydsvenska mossar under de senaste århundradena : en dendrokronologisk och torv- stratigrafisk analys av tre småländska mossar

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Jonna Axbom; [2012]
    Nyckelord :scots pine; ditching; raised bog; dendrochronology; peat stratigraphy; tall; dikning; högmosse; dendrokronologi; torvstratigrafi; Earth and Environmental Sciences;

    Sammanfattning : Under de senaste 100-200 åren har tall (Pinus sylvestris) etablerats på många sydsvenska mos- sar. Eftersom tall trivs i relativt torra och näringsrika miljöer, ger detta en indikation på att grundvattennivån i mos- sarna har sänkts. LÄS MER

  7. 5. A high resolution analysis of macroscopic charcoal deposited in peat

    L3-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :David Ventorp; [2007]
    Nyckelord :macrocharcoal; sieving; dendrochronology; peat; forest firest; in-situ; ex-situ;

    Sammanfattning : The amount of macroscopic charcoal in the top 25 cm of three cores from a peat land in Hornsö Ecopark, south-eastern Sweden, was compared to the dendrochronology inferred fire history of the site. Because of the occurrence of a recent fire ex-situ (1999) and one fire ¬in-situ inferred by three fire scared Scots pines, Pinus sylvestris, adjacent (5-10 m) to the peat cores, the site provided an excellent opportunity to compare the abundance of charcoal deposited in a peat land after fires in-situ and ex-situ. LÄS MER