Water resources of Arid Areas : proceedings of the International Conference on Water Resources of Arid and Semi Arid Regions of Africa (WRASRA), August 3-6th 2004, Gaborone, Botswana

Book Cover......Page 1
Half-Title......Page 2
Title......Page 4
Copyright......Page 5
Table of Contents......Page 6
Preface......Page 13
Keynote address......Page 16
Sustainable water management in arid and semi-arid environments......Page 18
Theme A: Problems in obtaining hydrological and geo-hydrological data......Page 34
Slug tests in fractured rock formations: value, pitfalls and misinterpretations......Page 36
Flow simulation model performance assessment using entropy approach......Page 44
Data collection experiences in water level monitoring, borehole archive and research projects in semi arid Botswana......Page 51
Rainfall characteristics in semi-arid Kitui district of Kenya......Page 58
Quantification of the impact of irrigation on the aquifer under the Vaalharts Irrigation Scheme......Page 75
Theme B: Groundwater recharge: natural and artificial......Page 88
Groundwater development-identification of artificial recharge areas in Alla, Eritrea......Page 90
Subterraneous injection of nutrient rich groundwater to the coastal waters......Page 100
A new method for the estimation of episodic recharge......Page 107
Prioritisation of the impacts of pollutants on groundwater flow systems in South Africa......Page 114
Understanding problems of low recharge and low yield in boreholes: an example from Ghana......Page 124
Spatial variation of groundwater recharge in a semi-arid environment-Serowe, Botswana......Page 137
Quantification of artificial ground water recharge......Page 148
The architecture and application of the South African Groundwater Decision Tool......Page 160
The development of a groundwater management tool for the Schoonspruit dolomitic compartment......Page 171
Effects of mining and urban expansion on groundwater quality in Francistown, Botswana......Page 183
In situ remediation potential for Southern African groundwater resources......Page 196
Coastal aquifers intrusion at semi-arid region of Turkey......Page 206
Evaluation of groundwater recharge rates in the Kizinga catchment in Dar es Salaam region......Page 213
Theme C: Socio-economic aspects......Page 226
KNUST experiences in capacity building in the water and sanitation sector......Page 228
Strategic partnerships for sustainable water education and research in developing countries......Page 236
Assessing demand for clean and safe domestic water in eastern Zimbabwe......Page 242
The role of supplementary irrigation for food production in a semi-arid country-Palestine......Page 255
Conversion of priority water rights to proportional water permits and conflict management in the Mupfure river catchment, Zimbabwe......Page 269
Impacts of water development in arid lands of Southern Africa: socio-economic issues......Page 277
Institutional challenges for small towns’ water supply delivery in Ghana......Page 290
Socio-economic performance of Sepeteri irrigation project in Nigeria......Page 302
Theme D: Application of geophysical, GIS, and remote sensing techniques......Page 315
Mapping vegetation for upscaling transpiration using high-resolution optical satellite and aircraft images in Serowe, Botswana......Page 317
Gravity study on groundwater structure in Central Butana (Sudan)......Page 328
Remote sensing and electrical resistivity studies on groundwater structure zones in Central Butana (Sudan)......Page 345
Monitoring and modeling of fluxes on Kalahari-setup and strategy of the Kalahari Monitoring project Serowe study case, Botswana......Page 361
Geoelectrical investigation for aquifer delineation in the semi-arid Chad Basin, Nigeria......Page 372
Monitoring of evapotranspiration on Kalahari, Serowe case study, Botswana......Page 379
Electro-seismic survey system......Page 396
Borehole site investigations in volcanic rocks of Lolmolok area, Samburu district, Kenya......Page 403
Groundwater evaluation in a complex hydrogeological environment-a GIS based approach......Page 421
Application of 2-D resistivity imaging combined with time domain electromagnetic survey to map shallower aquifers in Kunyere valley, northwest Botswana......Page 435
Theme E: Climate change and its impact......Page 443
Hydraulic studies in the design of sand dams......Page 445
Designing and implementing an aircraft survey mission using high-resolution digital multi-spectral camera for vegetation mapping for upscaling transpiration of Serowe, Botswana......Page 457
Relevance of groundwater interaction with surface water to the eco-hydrology of semi-arid regions......Page 465
Impacts of climate change in water resources planning and management......Page 476
Turning a liability into an asset: the case for South African coalmine waters......Page 482
Environmental hydrogeology of the dolomite aquifer in Ramotswa, Botswana......Page 494
Investigation of natural enrichment processes of nitrate in soil and groundwater of semi-arid regions: case study-Botswana......Page 504
Hydroclimatological approach to sustainable water resources management in semi arid regions of Africa......Page 520
Impact of cultivation practices on multiple uses of water in the Alemaya catchment, eastern Ethiopia......Page 529
Geochemical evidence and origin of salinity in the shallow basinal brine from the Makgadikgadi Pans Complexes, northeastern Botswana......Page 543
Theme F: Vulnerability and risk......Page 554
Decision support for optimal water system planning: a Wadessy case study......Page 556
The importance of constructing a correct conceptual model for an aquifer......Page 566
Water resources development and risk assessment in mountain regions of Africa......Page 574
Reliability, resilience and vulnerability for reservoir sizing and operation......Page 587
Hydrological impact of dam construction in an arid area......Page 595
The geochemistry of fresh water supplies in Botswana......Page 604
Groundwater modelling with limited data: a case study of Yobe River Basin, North East Nigeria......Page 615
Theme G: Water resources management......Page 626
Towards best water resources management practice in small town water supply system in Tanzania......Page 681
Apple and grape vinegar application as c-source in water denitrification......Page 628
Water resources management in the National Park, central Australia......Page 638
Integrated water resources management and agriculture in southern Africa......Page 649
Challenges for managing water resources in semi-arid areas: a case study from two rural communities in Zimbabwe......Page 658
An Integrated Water Resources Management tool for Southern Africa allowing low flow estimation at ungauged sites......Page 665
Organization of water services in Malawi and strengths and weaknesses in implementing Integrated Water Resources Management (IWRM)......Page 676
Water management in the Mauritian textile wet processing industry......Page 693
Analysis of the microbiological situation of the quality of domestic water sources and identification of the microorganisms in them, located in the semi-arid regions of the Eastern Cape, South Africa......Page 700
Dry season Kalahari sap flow measurements for tree transpiration mapping-Serowe study case, Botswana......Page 708
Heavy metals and radioactivity in the groundwater of Khartoum State, Sudan......Page 717
Impediments to the effective implementation of a groundwater quality protection strategy in Botswana......Page 722
Spatial assessment of groundwater pollution vulnerability of the Kanye wellfield in SE Botswana......Page 733
The effect of socio-economic activities on watershed management: the case study of Gaborone Dam catchment in Botswana......Page 740
Author index......Page 752