Sökning: "succession"

Visar resultat 16 - 20 av 174 avhandlingar innehållade ordet succession.

  1. 16. Boreal Forest Wildfire in a Changing Climate

    Författare :Johan Eckdahl; BECC: Biodiversity and Ecosystem services in a Changing Climate; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; boreal forest wildfire; carbon emissions; nutrient cycling; nitrogen; microbial community; plant community; climate chnge; secondary succession; Sweden; Fennoscandia; biodiversity; boreal skogsbrand; koldioxiduttsläpp; näringscykling; kväve; mirkobiellt samhälle; växtsamhälle; klimatförändring; sekundär succession; sverige; Fennoskandien; biologisk mångfald;

    Sammanfattning : The boreal region contains 40% of the earth’s carbon (C) that is stored in vegetation and soils with its forests accounting for almost 30% of the terrestrial C sink. Boreal forests are experiencing some of the most rapid rates of climatic warming and increases in fire activity, threatening to release large amounts of their dense C reserves to the atmosphere. LÄS MER

  3. 17. Peatland Bryophytes in a Changing Environment : Ecophysiological Traits and Ecosystem Function

    Författare :Gustaf Granath; Håkan Rydin; Joachim Strengbom; Steven K Rice; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; allometric scaling; chlorophyll fluorescence; competition; decomposition; flooding; mire; N concentration; nitrogen deposition; photosynthesis; succession; stoichiometry; Ecological Botany; Ekologisk botanik;

    Sammanfattning : Peatlands are peat forming ecosystems in which not fully decomposed plant material builds up the soil. The sequestration of carbon into peat is mainly associated with the bryophyte genus Sphagnum (peat mosses), which dominate and literally form most peatlands. LÄS MER

  4. 18. Problematic Departures : CEO Exits in Large Swedish Publicly Traded Corporations

    Författare :Jaan Grünberg; John R. Kimberly; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business studies; Corporate governance; directors; departures; executives; succession.; Företagsekonomi; Business studies; Företagsekonomi; Business Studies; Företagsekonomi;

    Sammanfattning : The CEO departure is an important mechanism in corporate governance. It is by using this mechanism that boards of directors may discipline management. This study examines departures in the governance of large Swedish corporations.The study builds on three kinds of data. LÄS MER

  5. 19. 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

  7. 20. Svenska kyrkans primas : Ärkebiskopsämbetet i förändring 1914–1990

    Författare :Klas Hansson; Oloph Bexell; Kjell O. Lejon; Gustav Björkstrand; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Archbishop; primate; episcopacy; bishop; bishops’ conference; apostolic succession; ecumenism; pastoral letter; Ember Days message; church leadership; democracy; Church of Sweden; Church Synod; Nathan Söderblom; Erling Eidem; Yngve Brilioth; Gunnar Hultgren; Ruben Josefson; Olof Sundby; Bertil Werkström.; Ärkebiskop; primat; biskop; biskopsämbete; biskopsmöte; apostolisk succession; ekumenik; herdabrev; böndag; kyrkoledarskap; demokrati; Svenska kyrkan; Nathan Söderblom; Erling Eidem; Yngve Brilioth; Gunnar Hultgren; Ruben Josefson; Olof Sundby; Bertil Werkström; Church History; Kyrkohistoria;

    Sammanfattning : When Nathan Söderblom became archbishop in 1914 he substantially altered and extended the office of archbishop. This study deals with how and why the office of archbishop has changed from Söderblom’s incumbency down to the introduction of an assistant bishop in the archdiocese in 1990. LÄS MER