Sökning: "mires"

Visar resultat 1 - 5 av 22 avhandlingar innehållade ordet mires.

  1. 1. Vegetation changes on Swedish mires : Effects of raised temperature and increased nitrogen and sulphur influx

    Författare :Urban Gunnarsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Acidification; growth; long-term studies; mires; nitrogen; species richness; Sphagnum; succession; sulphur; temperature; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : Since the start of the industrialisation, the deposition of nitrogen and sulphur and the atmospheric concentrations of greenhouse gases have increased. The main objectives of this study were to find how these changes in climate and deposition can change the vegetation of mire ecosystems and the growth of Sphagnumspecies. LÄS MER

  3. 2. Mark i marginalen : Drivkrafter, pionjärer och myrodlingslandskap

    Författare :Annika Strandin Pers; Mats Widgren; Ulf Jansson; Tom Mels; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; historical geography; mires reclamation; landscape; Sweden; early modern period; labour migrations; international relations; discourse; practice; mobility; knowledge and skills development; kulturgeografi; Human Geography;

    Sammanfattning : This thesis investigates the reclamation of mires (fens and bogs) in Sweden with a focus on the early modern period. Today, the mires are valued natural habitats and their cultivation is controversial. International research describes wetland reclamation and the related knowledge transfer between European countries already from the 12th century. LÄS MER

  4. 3. Myrar på Storön vid Norrbottenskusten

    Författare :Jan Elveland; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Våtmarker; Sverige; Norrbotten; Växtsamhällen;

    Sammanfattning : ELVELAND, J. 1976. Coastal mires on the Storön peninsula, Norrbotten, N Sweden. Wahlenbergia 3. LÄS MER

  5. 4. A green future with thawing permafrost mires? : a study of climate-vegetation interactions in European subarctic peatlands

    Författare :Julia Bosiö; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fennoscandia; carbon; greenhouse gas; photosynthesis; PAR; snow; climate change; permafrost; peatland; subarctic;

    Sammanfattning : Climate projections indicate that Arctic and sub-Arctic regions are facing a significant change in climate during the 21st century. With warmer temperatures precipitation is also expected to increase, and in particular winter precipitation. LÄS MER

  7. 5. Catchment controls on mire properties in the post-glacial landscape

    Författare :Betty Ehnvall; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Mires are key ecosystems in the boreal biome which provide services related to carbon uptake, biodiversity, and regulation of hydrological and biogeochemical cycles. Minerogenic mires are supported by their upslope catchment area and underlying mineral soil, but a more detailed understanding and quantification of landscape drivers behind mire properties is needed. LÄS MER