Hydrology And Water Resources Development In The Olifants River Catchment
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Hydrology And Water Resources Development In The Olifants River Catchment
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Author : M.P. McCartney
language : en
Publisher: IWMI
Release Date : 2004
Hydrology And Water Resources Development In The Olifants River Catchment written by M.P. McCartney and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Olifants River Watershed (South Africa) categories.
The Olifants River is one of the major tributaries of the Limpopo River. Approximately 3,400,000 people live in its catchment and a considerable proportion of South Africa’s mining, power production and agricultural activities are concentrated there. The catchment also encompasses important tourist destinations (e.g., the Kruger National Park). Consequently, in terms of the national economy it is one of the country’s most significant waterways. The catchment is one of the first in South Africa for which a Catchment Mangement Agency (CMA) is planned.
Evaluation Of Historic Current And Future Water Demand In The Olifants River Catchment South Africa
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Author : McCartney, Matthew P., Arranz, Roberto
language : en
Publisher: IWMI
Release Date : 2007
Evaluation Of Historic Current And Future Water Demand In The Olifants River Catchment South Africa written by McCartney, Matthew P., Arranz, Roberto and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Olifants River Watershed (South Africa) categories.
Water resource development has played a significant role in the expansion of agriculture and industry in the Olifants River Catchment. However, currently water deficit is one of the major constraints hampering development in the catchment; both the mining and agricultural sectors are producing below optimal levels because of their reliance on insufficient supplies. In this study, the Water Evaluation and Planning (WEAP) model was used to evaluate scenarios of historic, current and future water demand in the catchment. For each scenario, the WEAP model was used to simulate demand in five different sectors (rural, urban, mining, commercial forestry and irrigation) over a 70-year period of varying rainfall and hydrology. Levels of assured supply were estimated for each sector and the economic cost of failing to provide water was predicted. For the future scenarios, the impact of infrastructure development and water conservation measures were assessed. The study illustrates how a relatively simple model can provide useful insight for resource planning and management.
Application Of The Water Evaluation And Planning Weap Model To Assess Future Water Demands And Resources In The Olifants Catchment South Africa
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Author : Roberto Arranz
language : en
Publisher: IWMI
Release Date : 2007
Application Of The Water Evaluation And Planning Weap Model To Assess Future Water Demands And Resources In The Olifants Catchment South Africa written by Roberto Arranz and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Olifants River Watershed (South Africa) categories.
The Olifants catchment is one of 19 Catchment Management Areas in South Africa. Different water users (i.e., rural, urban, mining, subsistence and commercial irrigated agriculture, commercial forestry, industry and power generation) are present in the catchment. Rising population andincreasing water provision in rural areas, in conjunction with the development of the mining industry, the construction of new power generation plants, the implementation of environmental flows andthe need to meet international flow requirements are going to greatly exacerbate the complexity of future water resources management in what is already a water-stressed catchment. Being able to assess the ability of the catchment to satisfy potential water demands is crucial in order to plan for the future and make wise decisions. In this study, a scenario analysis approach was used in conjunction with the Water Evaluation And Planning model, in order to assess the impacts of possible water demands on the water resources of the Olifants catchment in 2025. Foreach scenario, the water resource implications were compared to a 1995 “baseline.” The model enabled analyses of unmet water demands, streamflows and water storage for each scenario. The model results show that for the different scenarios considered in this study the implementation of the Environmental Reserve (an instream requirement to guarantee the health of the riverine ecosystems) will increase the shortages for other sectors. The construction of the main water storage infrastructure proposed by the Department of Water Affairs and Forestry, in conjunction with the application of Water Conservation and Demand Management practices, can reduce the unmet demands and shortfalls to levels lower than, or similar to, those experienced in the 1995 baseline. However, in all cases these interventions will be insufficient to completely meet the demands of all the sectors. A tight control of the growth in future demands is essential, although this may be difficult in a rapidly developing country like South Africa.
River Basin Trajectories
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Author : François Molle
language : en
Publisher: IWMI
Release Date : 2009
River Basin Trajectories written by François Molle and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Business & Economics categories.
This book contains 11 papers which cover a range of vital topics in the areas of water, agriculture, food security and ecosystems - the entire spectrum of developing and managing water in agriculture, from fully irrigated to fully rainfed lands. They are about people and society, why they decide to adopt certain practices and not others and, in particular, how water management can help poor people. They are about ecosystems - how agriculture affects ecosystems, the goods and services ecosystems provide for food security and how water can be managed to meet both food and environmental security objectives. This is the eighth book in the series.
Handbook Of Catchment Management
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Author : Robert C. Ferrier
language : en
Publisher: John Wiley & Sons
Release Date : 2009-09-11
Handbook Of Catchment Management written by Robert C. Ferrier and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-11 with Science categories.
This book addresses the fundamental requirement for aninterdisciplinary catchment based approach to managing andprotecting water resources that crucially includes anunderstanding of land use and its management. In thisapproach the hydrological cycle links mountains to the sea, andecosystems in rivers, groundwaters, lakes, wetlands, estuaries andcoasts forming an essential continuum directly influenced by humanactivity. The book provides a synthesis of current and future thinking incatchment management, and shows how the specific problems thatarise in water use policy can be addressed within the context of anintegrated approach to management. The book is written for advancedstudents, researchers, fellow academics and water sectorprofessionals such as planners and regulators. The intention is tohighlight examples and case studies that have resonance not onlywithin natural sciences and engineering but with academicsin other fields such as socio-economics, law and policy.
Policies Legislation And Organizations Related To Water In South Africa With Special Reference To The Olifants River Basin
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Author : H. Thompson
language : en
Publisher: IWMI
Release Date : 2001
Policies Legislation And Organizations Related To Water In South Africa With Special Reference To The Olifants River Basin written by H. Thompson and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Irrigation categories.
The study is reported in two Working Papers. Working Paper 17 reports the findings of the HIM exercise. This paper contains the policies, legislation and organizations relevant for understanding of the HIM for the Olifants river basin. It also includes the historical development of the institutional framework in the basin, as this history has left a profound imprint on the South African society at large and is still dictating, in many cases, the interactions between the different organizations. This background on previous and current institutions and policies at the different government levels is used to shed light on the current relationships between different organizations in the basin. Although focusing on the Olifants, the description provided is applicable to the rest of South Africa in broad terms.
Water Resources Management Iv
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Author : C.A. Brebbia
language : en
Publisher: WIT Press
Release Date : 2007-05-08
Water Resources Management Iv written by C.A. Brebbia and has been published by WIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-08 with Science categories.
Water resources are under extreme pressure today all over the world. The resulting problems have given rise to many activities which reflect the growing concern about them and the importance of effective management.As water increasingly becomes a precious resource on which the well-being of future generations depends, it is essential to discuss issues concerning quality, quantity, planning and other related topics.Containing papers presented at the Fourth International Conference on Water Resources Management, this book examines the recent technological and scientific developments associated with the management of surface and sub-surface water resources. The wide variety of subjects covered are as follows: Water Resource Management and Planning; Waste Water Treatment and Management; Water Markets and Policies; Urban Water Management; Water Quality; Storm Water Management; Water Security Systems; Pollution Control; Irrigation Problems; Reservoirs and Lakes; River Basin Management; Hydrological Modelling; Flood Risk; Decision Support Systems; Groundwater Flow Problems and Remediation Technologies; Coastal and Estuarial Problems; Soil and Water Conservation and Risk Analysis.
From Catchment Management To Managing River Basins
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Author : M. Dinesh Kumar
language : en
Publisher: Elsevier Science
Release Date : 2019-06-11
From Catchment Management To Managing River Basins written by M. Dinesh Kumar and has been published by Elsevier Science this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-11 with Science categories.
From Catchment Management to Managing River Basins: Science, Technology Choices, Institutions and Policy synthesizes key scientific facts crucial for catchment assessment, planning and river basin water accounting. The book presents extensive reviews of international literature on catchment hydrology, forest hydrology and other hydrological processes, such as groundwater-surface water interactions. It discusses not only the science of catchment assessment and planning, but also the catchment planning process. It documents several of the positive international experiences with integrated catchment management and integrated basin management, distilling key learnings. Case studies from India and other parts of South Asia are also included, along with new pilot studies. Finally, the book discusses the theoretical and operational aspects of integrated catchment management and integrated water management in river basins using international best practices and case studies.
Improved Hydrological Understanding Of A Semi Arid Subtropical Transboundary Basin Using Multiple Techniques The Incomati River Basin
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Author : Saraiva Okello
language : en
Publisher: CRC Press
Release Date : 2019-05-13
Improved Hydrological Understanding Of A Semi Arid Subtropical Transboundary Basin Using Multiple Techniques The Incomati River Basin written by Saraiva Okello and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-13 with Science categories.
This study aims at improving the hydrological process understanding of the semi-arid and transboundary Incomati river basin to enable better water management. Comprehensive statistical and trend analysis of rainfall and streamflow were conducted, and the Indicators of Hydrological Alteration tool was deployed to describe the streamflow regime and trends over time. Land use and land cover change, particularly the conversion of natural vegetation into forest plantation, the expansion of irrigated agriculture and the flow regulation due to dam operation were identified as critical drivers of flow regime alteration. Hydrograph separation using long-term hydrochemical data at seasonal scale, and hydrochemical and isotope data at event scale were performed to quantify runoff components. A novel methodology to calibrate recursive digital filters using routinely collected water quality data was developed and tested in the catchment. This method allows for estimation of daily baseflow from readily available daily streamflow data. Dominant runoff generation zones were mapped using the Height Above Nearest Drainage approach. The hydrological model STREAM was then employed, informed by the runoff generation zones mapping and the process understanding gained in the catchment, as well as remote sensing data. The study provides the basis for better operational water management in the catchment.
Water Resource And Land Use Issues
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Author : Ian R. Calder
language : en
Publisher: IWMI
Release Date : 1998
Water Resource And Land Use Issues written by Ian R. Calder and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forest hydrology categories.
This paper reviews perceived notions of the relationships between catchment land use and hydrology and explores whether much of the widely disseminated folklore, so often inextricably linked with issues of land use, is based on myth or reality. Gaps in our knowledge of the underlying processes in relation to land use and hydrology are identified. Our ability to apply this knowledge at different scales ranging from the plot to the catchment and regional scales are discussed and specific examples are drawn from Indian and African case studies. Methods for linking spatially distributed land-use hydrological models with economics and ecology through decision support systems are outlined and proposed as a framework for the integrated management of land and water developments at the catchment scale.