Search for dissertations about: "semiarid area"

Showing result 1 - 5 of 8 swedish dissertations containing the words semiarid area.

  2. 1. Water erosion modeling using fractal rainfall disaggregation- a study in semiarid Tunisia

    Author : Sihem Jebari; Avdelningen för Teknisk vattenresurslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reservoir siltation; regionalization; fractal analysis; Atlasic mountain range; erosive events; semiarid area; soil loss; Tunisia.; Soil erosion; semiarid; Tunisia; rainfall; fractal; diaggregation;

    Abstract : In the Tunisian semiarid area, water erosion processes have led to negative economic and environmental consequences in a context of limited water resources. To characterize and predict these degradation phenomena, a comprehensive high-resolution data base on erosive rainfall, together with siltation records for 28 small reservoirs were analyzed. READ MORE

  4. 2. Food insecurity and coping strategies in semiarid areas : the case of Mvumi in central Tanzania

    Author : Emma T. Liwenga; Tor A Benjaminsen; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Food insecurity; semiarid; local knowledge; seasonality; coping strategies; livelihood strategies.; Human geography; Kulturgeografi; Human Geography; kulturgeografi;

    Abstract : This study examines how people in dryland areas cope with food insecurity and adversities over time. It draws from the experience of the Gogo people living in Mvumi in the semiarid zone of central Tanzania, an area with a long history of food shortages. The study specifically examines the potential for dryland resources to sustain livelihoods. READ MORE

  5. 3. Floodwater harvesting for artificial recharge of groundwater - estimation and prediction for arid Iran

    Author : Hossein Hashemi; Avdelningen för Teknisk vattenresurslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Artificial recharge; Groundwater modeling; Climate change; Spate irrigation; Arid area; FWS; GBP;

    Abstract : Groundwater depletion in arid and semiarid areas is of increasing concern. Increasing water demand due to increasing population and climate change impacts have intensified the water shortage problems and put further stress especially on groundwater. READ MORE

  6. 4. Soil Salinity and Crop Yield at El-Salam Canal Area, Egypt

    Author : Yasser Hamed Abd El Mageed; Avdelningen för Teknisk vattenresurslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; El-Salam Canal; Egypt; Salinity; Crop yield; Arid;

    Abstract : Soil salinity and solute movements through the soil are considered the most important challenge facing agriculture in Arid and Semiarid regions (e.g., Egypt). READ MORE

  7. 5. A multidisciplinary approach: geophysics, hydrochemistry and hydrometeorology for addressing water security in semiarid alluvial fans

    Author : Andres Gonzales; Teknisk geologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geophysical methods; Hydrochemistry; Hydrometeorology; Bolivia; Alluvial fan;

    Abstract : Water security offers to the local population an adequate quality and quantity of water for health, economy, livelihoods and ecosystems. Hence, achieving basic levels of water security should be a priority in areas where access to fresh water is scarce. READ MORE