Search for dissertations about: "nile"

Showing result 1 - 5 of 38 swedish dissertations containing the word nile.

  2. 1. Hydrological and sediment yield modelling in Lake Tana Basin, Blue Nile Ethiopia

    Author : Shimelis Gebriye Setegn; Bijan Dargahi; Anders Wörman; C. Green Rossi; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SWAT; Lake Tana; Blue Nile; hydrological modelling; watershed modelling; MCE; SUFI-2; GLUE; ParaSol; streamflows; sediment yield; erosion; water balance; model calibration; Hydrology; Hydrologi;

    Abstract : Land and water resources degradation are the major problems on the Ethiopian highlands. Poor land use practices and improper management systems have played a significant role in causing high soil erosion rates, sediment transport and loss of agricultural nutrients. So far limited meas-ures have been taken to combat the problems. READ MORE

  4. 2. Efficiency, Risk and Regulation Compliance: Applications to Lake Victoria fisheries

    Author : Razack B. Lokina; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Incentives; Lake Victoria; remuneration; skipper skill; stochastic frontier; technical efficiency; Risk aversion; artisanal fishers; Tanzania; Nile perch; Dagaa; compliance; legitimacy; normative; deterrence.;

    Abstract : This thesis deals with artisanal fishers in Lake Victoria fisheries. The thesis consists of an introductory chapter and three self-contained papers, which make up the rest of the thesis chapters. READ MORE

  5. 3. Evaluation of locally available feed resources for Nile tilapia (Oreochromis niloticus) in Rwanda

    Author : Leon Niyibizi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Aquaculture was introduced in Rwanda in the 1940s as an extensive pond-based system but the sector has gained in popularity during the past two decades, resulting in greater numbers of fish ponds and a corresponding increase in demand for quality fish feeds for sustainable aquaculture production. The aim of this thesis was to identify, sample and evaluate the nutritive value of some locally available feed ingredients that could be used by fish farmers producing Nile tilapia. READ MORE

  6. 4. Intensifying Agricultural Water Management in the Tropics : A cause of water shortage or a source of resilience?

    Author : Yihun Dile; Johan Rockström; Louise Karlberg; Mekonnen Gebremichael; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Water harvesting; Climate change; Climate variability; Multi criteria evaluation; SWAT; CN; sub-Saharan Africa; Upper Blue Nile; Lake Tana basin; naturresurshushållning; Natural Resources Management;

    Abstract : Frequent climatic shocks have presented challenges for rainfed agriculture in sub-Saharan Africa. Appropriate water management practices are among the solutions to the challenges. The role of water harvesting in achieving sustainable agricultural intensification and specified resilience was explored. READ MORE

  7. 5. Masters of War : The Role of Elites in Sudan’s Communal Conflicts

    Author : Johan Brosché; Kristine Höglund; Anders Themnér; Catherine Boone; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; communal conflicts; causes of conflict; conflict prevention; conflict resolution; government bias; elites; common-pool resources; sanctions; boundaries; local rules; Sudan; South Sudan; Darfur; Eastern Sudan; Greater Upper Nile; Peace and Conflict Research; Freds- och konfliktforskning;

    Abstract : Why do communal conflicts turn violent in some regions but not in others? Communal conflicts pose a severe threat to human security and kill thousands of people each year, but our understanding of this phenomenon is still limited. In particular, we lack knowledge about why some of these conflicts become violent while others are resolved peacefully. READ MORE