Search for dissertations about: "N2 fixation"

Showing result 1 - 5 of 29 swedish dissertations containing the words N2 fixation.

  1. 1. Marine nitrogen fixation Cyanobacterial nitrogen fixation and the fate of new nitrogen in the Baltic Sea

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : Isabell Klawonn; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biogeochemistry; nitrogen cycling; nitrogen fixation; cyanobacteria; Baltic Sea; marin ekologi; Marine Ecology;

    Abstract : Biogeochemical processes in the marine biosphere are important in global element cycling and greatly influence the gas composition of the Earth’s atmosphere. The nitrogen cycle is a key component of marine biogeochemical cycles. READ MORE

  2. 2. Nitrogen fixation among marine bacterioplankton

    University dissertation from Högskolan i Kalmar

    Author : Kjärstin H. Boström; Högskolan i Kalmar.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bacterioplankton; Nitrogen fixation; Bakterioplankton; Kvävefixering; Cyanobakterier; Kvävefixerande bakterier; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi; Mikrobiologi; Microbiology;

    Abstract : While bacterioplankton indisputably control vital biogeochemical paths in the cycling of carbon and nutrients in the world’s oceans, our knowledge about the functional and genetic diversity of bacterioplankton communities is negligible. In this thesis, molecular and more traditional microbiological methods were used to study the specific function of N2-fixation and in a general sense diversity of marine bacterioplankton species. READ MORE

  3. 3. The importance of N₂ fixation in northern grasslands

    University dissertation from Högskolan i Kalmar

    Author : Georg Carlsson; Sveriges lantbruksuniversitet.; [2003]
    Keywords : ;

    Abstract : .... READ MORE

  4. 4. Cyanobacterial Nitrogen Fixation in the Baltic Sea With focus on Aphanizomenon sp

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : Jennie B. Svedén; Stockholms universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cyanobacteria; Baltic Sea; nitrogen fixation; Aphanizomenon sp.; dissolved nitrogen; particulate nitrogen; sedimentation; marin ekologi; Marine Ecology;

    Abstract : Cyanobacteria are widely distributed in marine, freshwater and terrestrial habitats. Some cyanobacterial genera can convert di-nitrogen gas (N2) to bioavailable ammonium, i.e. perform nitrogen (N) fixation, and are therefore of profound significance for N cycling. READ MORE

  5. 5. Input of nitrogen from N2 fixation to northern grasslands

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : Georg Carlsson; Sveriges lantbruksuniversitet.; [2005]
    Keywords : ;

    Abstract : .... READ MORE