Sökning: "Soil evaporation"

Visar resultat 16 - 20 av 34 uppsatser innehållade orden Soil evaporation.

1. 16. Simulations of water balance conditions and cli-mate variability for Sustainable Agriculture and Energy in the Lower Rufiji Basin.

   Master-uppsats, KTH/Mark- och vattenteknik

   Författare :Rajabu Hamisi; [2013]
   Nyckelord :Adaptation; Agriculture; Climate Change; CoupModel; Hydropower; SWAT; Water Balance;

   Sammanfattning : This study provides a long-term understanding of the impact of climate varia-bility and land use on seasonal water balance conditions for sustainable agricul-ture development, hydropower generation and ecosystem stability in the Lower Rufiji Basin. The severity of soil drought, extreme flooding and salinity intru-sion in the lower Rufiji floodplains are currently increasing smallholder poverty and enhance the sensitivity on the natural wetlands for shifting farming and livestock pastures. LÄS MER

3. 17. Long Term Environmental Modelling of Soil-Water-Plant Exposed to Saline Water.

   Master-uppsats, KTH/Mark- och vattenteknik

   Författare :Leila Pourfathali Kasmaei; [2012]
   Nyckelord :CoupModel; Drip and surface irrigation; Leaching fraction; Soil evaporation; Transpiration; Salinization;

   Sammanfattning : The impact of long term management strategies of irrigation with saline water in semi-arid region of Gordonia, South Africa is the highest interest to optimize water consumption, soil conservation, and crop yield for sustainable water allocations to human food production and ecosystem without irreversible damages to soil and water body. An integrated ecosystem assimilation, in shape of soil-water storage model based on physical approach for 30-year simulation run defined in form of digital ecosystem modelling with help of CoupModel tool to assemble together the most important underlying processes of soil hydraulics, irrigation demands, leaching fraction, evapotranspiration, salt transport. LÄS MER

4. 18. Drainage of flooded water : effects on baseflow in Awanui Stream, New Zealand

   Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

   Författare :Anna Thorsell; [2012]
   Nyckelord :drainage; flooding; infiltration; pumice; peat; Heretaunga Plains.; dränering; översvämning; infiltration; pimpstensjord; torv; Heretaunga Plains.;

   Sammanfattning : In the Heretaunga Plains area, New Zealand, parts of the low lying land adjacent to the Awanui Stream are flooded annually. The purpose of the study was to find out if the flooding water trapped in the field gets sealed off from infiltrating the soils in any way (and hence is unavailable to replenish the stream flow). LÄS MER

5. 19. Investigation of drip irrigation techniques

   Kandidat-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Författare :Rebecka Jenryd; Cecilia Lundqvist; [2012]
   Nyckelord :drip irrigation; Tunisia; saline water; agriculture; arid climate; soil moisture; Technology and Engineering;

   Sammanfattning : The shortage of accessible water in the world is especially severe in arid regions, where many are already living to the limits of survival. In such areas, the conditions are in fact getting more extreme due to climate change and a growing population. LÄS MER

7. 20. Comparison of the water balance of two forest stands using the BROOK90 model

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Bawar Tahir; [2012]
   Nyckelord :evapotranspiration; transpiration; geography; physical geography; BROOK-90 Model; hydrological cycle; Earth and Environmental Sciences;

   Sammanfattning : Recent studies show that future climate change will have a major influence on the water balance of forests in which the projected increase in air temperature and variation in the precipitation around the world are expected to be among the most important drivers affecting the forest’s hydrological cycle. The objective of this study is to compare the water balance of two forests stands in two different areas. LÄS MER