Sökning: "plant and seed conservation"

Visar resultat 6 - 10 av 17 uppsatser innehållade orden plant and seed conservation.

  1. 6. Ordinary and Extraordinary : Heritage plants and their farmers

    Master-uppsats, Uppsala universitet/Institutionen för arkeologi och antik historia

    Författare :Rebecca Öhnfeldt; [2019]
    Nyckelord :Heritage plants; farming; agriculture; food security; biodiversity; plant and seed conservation; biocultural refugia; soil.;

    Sammanfattning : This thesis explores how Swedish farmers, who have chosen to farm with heritage plant varieties, motivate their choices and how they as a result of their choices view themselves as farmers. This is investigated against present and future challenges regarding food security and the loss of agricultural biodiversity and biocultural heritage, which, in order to be faced, will require a wider range of plants in cultivation. LÄS MER

  3. 7. Makrofossilanalys som ekologiskt verktyg : En metodutvärdering

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Siri Pettersson; [2017]
    Nyckelord :macro fossil analysis; cyperaceae; sedge; seed; archaeobotanic; paleo ecology; sweden; conservation; makrofossilanalys; arkeobotanik; paleoekologi; växtekologi; ekologi; historisk ekologi; cyperaceae; halvgräs; makrofossil; subfossil; achen; nöt; frukt; frö; metodutvärdering; artidentifiering; identifiering; järnålder; vikingatid; romersk järnålder; Gilltuna; västerås län; naturvård; äng; ängsmark; hage; gräsmark;

    Sammanfattning : Approximately 50 percent of all endangered species in Scandinavia are associated with old agricultural landscapes. During the agricultural industrialization of the past century the traditional practices and methods that created these environments have been phased out. LÄS MER

  4. 8. Kan man skapa en artrik ängsmark på gammal åkermark? - kärlväxtetablering och vegetationsutveckling på MAX IV-området, Lund

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Janne Kolehmainen; [2016]
    Nyckelord :Biology and Life Sciences; Earth and Environmental Sciences;

    Sammanfattning : This study investigates if transfer of plant material in the form of hay is an effective method for establishment of species rich grassland on former arable land in southwestern Scania, Sweden. An inventory of vascular plants was conducted to analyze the early establishment on areas with added hay vs. areas with no hay added. LÄS MER

  5. 9. Invasive plant species and competition for pollinators

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Jennie Örjes; [2016]
    Nyckelord :Invasive plants; pollinators; Earth and Environmental Sciences;

    Sammanfattning : Invasive alien species cause harm to native flora and fauna, and can ultimately via biotic interactions and alterations of the abiotic conditions change entire ecosystems. They have therefore during the last decades gotten more attention and are now recognised as one of the major threats to biodiversity worldwide. LÄS MER

  7. 10. Norrlandslök – nordlig raritet, mellansvensk torparväxt eller återfunnen skånsk spetsforskning? : ursprung och bevarandevärden för en udda Allium-hybrid i den svenska nationella genbanken

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Erik De Vahl; [2016]
    Nyckelord :Albert Levan; Allium; bevarandevärden; biologisk mångfald; genbank; Grönt kulturarv; kantlök; Norrlandslök; POM; växters namn;

    Sammanfattning : Två udda Allium-hybrider samlades under POM:s Sparrisupprops inventeringsfas in och provodlades. Deras taxonomiska status har varit okänd men i den nationella genbanken i Alnarp har de förts in som Allium nutans, Sibirisk kantlök. LÄS MER