Hutchinson, Lydia2013-05-022013-05-022013-05-02http://hdl.handle.net/10539/12705A dissertation submitted to the faculty of Science, University of the Witwatersrand, Johannesburg, in fulfillment of the requirements for the degree of Master of Science.Unable to load abstract.enGrasslands - Effect of nitrogen on.Grasslands - Effect of sulfur on.Grassland ecology.Soil chemistry - South Africa - Mpumalanga.An initial investigation into key soil processes and associated influences on N and S cycles of grassland site near a coal-fired power station, Mpumalanga, South AfricaThesis