Sökning: "ancient forest"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden ancient forest.

  1. 1. Understanding virulence of Heterobasidion annosum s.l., a root rot pathogen of conifers

    Författare :Yang Hu; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Heterobasidion annosum sensu lato (s.l.) species are destructive pathogens causing root and butt rot in conifers. The species complex consists of five species: H. LÄS MER

  3. 2. Landskapsutnyttjande, bete och odling på Sydsvenska höglandet under äldre järnålder. Exemplet Öggestorp. : Land-use, grazing and cultivation in the south Swedish uplands. The Öggestorp case

    Författare :Leif Häggström; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Agrarian practice; farming; cultivation; grazing; Pre-Roman Iron Age; Roman Iron Age; source criticism; Småland; south Swedish uplands; forest; woodland; iron; settlement; clearance cairn; crops; technical innovation; archaeological dating methods; centrality; periphery; contract archaeology; cultural heritage management;

    Sammanfattning : Land-use, grazing and cultivation in the south Swedish uplands. The Öggestorp case. Thesis for the degree of Doctor of Philosophy, Göteborg University, Department of Archaeology, 2005. Written in Swedish, with an English summary. LÄS MER

  4. 3. The long-term history of temperate broadleaves in southern Sweden

    Författare :Tove Hultberg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Temperate broadleaves used to be abundant in the primeval forests in southern Sweden, yet today they cover only fractions of the forest land. Considering the present small area of the forest type, the habitat is of considerable interest for biodiversity, and knowledge about the history of temperate broadleaves is crucial for forest conservation and management. LÄS MER

  5. 4. Patterns and Processes of Evolution in Sundaland

    Författare :Robert-Jan den Tex; Jennifer A. Leonard; Lawrence R. Heaney; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; Systematics and phylogenetics; Systematik och fylogeni; Genetics; Genetik; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Sammanfattning : Biodiversity in the tropics is disproportionately high compared to other habitats, and also under disproportionate threat from human impact. It is necessary to understand how this diversity evolved and how it is partitioned across space in order to preserve it. LÄS MER

  7. 5. The natural holocene vegetation development and the introduction of agriculture in northern Norrland, Sweden : studies of soil, peat and especially varved lake sediments

    Författare :Ulf Segerström; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Jordbruk-- Sverige -- Norrbotten; Växtekologi-- Sverige -- Norrbotten; Lule älvdal;

    Sammanfattning : The Holocene vegetation history of northern Norrland was studied by pollen analysis of sediement, peat and soil samples, with the aim to improve our knowledge about vegetation development in northern Norrland, and also about the history of man and the introduction of agriculture in the area. Earlier made pollen analyses from the four northernmost provinces were summarized and a series of new analyses from northern Norrland added. LÄS MER