Ecological and Economic Evaluation of Wetlands in the Upper Olifants River Catchment, South Africa PDF Download
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Author: Robert William Palmer
Publisher:
ISBN: 9781868459438
Category : Water resources development
Languages : en
Pages : 254
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Book Description
Author: Robert William Palmer
Publisher:
ISBN: 9781868459438
Category : Water resources development
Languages : en
Pages : 254
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Book Description
Author: McCartney, Matthew P., Arranz, Roberto
Publisher: IWMI
ISBN: 9290906723
Category : Olifants River Watershed (South Africa)
Languages : en
Pages : 51
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Book Description
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.
Author: Jane Turpie
Publisher:
ISBN:
Category : Wetlands
Languages : en
Pages : 374
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Book Description
Author: South Africa. Water Research Commission
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 452
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Book Description
Author: Adrian Wood
Publisher: Routledge
ISBN: 1136470638
Category : Science
Languages : en
Pages : 305
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Book Description
In this book the authors argue for a paradigm shift in the way African wetlands are considered. Current policies and wetland management are too frequently underpinned by a perspective that views agriculture simply as a threat and disregards its important contribution to livelihoods. In rural areas where people are entrenched in poverty, wetlands (in particular wetland agriculture) have a critical role to play in supporting and developing peoples' livelihoods. Furthermore, as populations rise and climate change takes grip they will be increasingly important. The authors argue that an approach to wetland management that is much more people focused is required. That is an approach that instead of being concerned primarily with environmental outcomes is centred on livelihood outcomes supported by the sustainable use of natural wetland resources. The authors stress the need for Integrated Water Resource Management and landscape approaches to ensure sustainable use of wetlands throughout a river catchment and the need for wetland management interventions to engage with a wide range of stakeholders. They also assess the feasibility of creating incentives and value in wetlands to support sustainable use. Drawing on nine empirical case studies, this book highlights the different ways in which sustainable use of wetlands has been sought, each case focusing on specific issues about wetlands, agriculture and livelihoods.
Author: John Pascal Simaika
Publisher: Frontiers Media SA
ISBN: 2889667669
Category : Science
Languages : en
Pages : 198
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Book Description
Author: Roberto Arranz
Publisher: IWMI
ISBN: 9290906545
Category : Olifants River Watershed (South Africa)
Languages : en
Pages : 104
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 168
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Book Description
Author: Eric J. Hiscock
Publisher: Iucn-World Conservation Union
ISBN:
Category : Business & Economics
Languages : en
Pages : 194
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Book Description
Author: R. K. Turner
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
