The main goal of this research is to develop and test a groundwater recharge estimation method that can address some of the key research priorities in groundwater. In this context use is made of various modelling tools including ArcGIS, field data (in situ observations of soil temperature and soil moisture), and soil physics as represented by a physically based vadose zone hydrologic model (HYDRUS-1D). The research is conducted in a pilot watershed in north Okanagan, Canada. The public version of HYDUS-1D and another version with detailed freezing and thawing module are first used to investigate seasonal distribution of heat and water movement in the vadose zone. Model performance is evaluated in different scales by using field data, the gradient-based optimization algorithm of HYDRUS-1D, and ROSETTA derived prior information about soil hydraulic parameters. The latter are fitted to statistical distributions and used in Monte-Carlo experiments to assess the potential uncertainty in groundwater recharge due to model parameters. Next, the significance of the recharge estimation method for catchment scale transient groundwater modelling is demonstrated by applying uniform and variable flux boundary condition to a saturated zone transient groundwater model, MIKESHE. The results showed that the traditional uniform recharge assumption can lead to misleading decisions related to water resources management and pumping well network design. The effect of pumping well network and the provincial Water Act on water resources sustainability are further examined in an evolving climate. The results suggest potential water resource problem in the basin, which can possibly be attributed to the previously installed pumping well network (depth and screen level), and the provincial water use policy. The findings of this study demonstrate that such problems related to inappropriate well network and water resource management can greatly be minimised with the use of the recharge estimation method developed in this study.

1. BACKGROUND Mhlathuze Water (MW) is a public sector water utility created in terms of Water Act 54 of 1954, MW has legislative mandate to provide support services to DWAF and other government institutions such as municipalities and Catchment Management Agencies (CMAs). The objective of the CMA is to manage and coordinate water resources management functions at local level. This includes the power to manage, monitor, conserve and protect water resources and to implement catchment management strategies (NWA, 1998). Because of shortage of water resources specialist skills such as water resources monitoring, water resources assessment, flood prevention, and resource protection to mention few, the Usuthu-Mhlathuze CMA will have to outsource some of the specialist functions to private and public institutions like Mhlathuze Water on a competitive basis (DWAF, 2003). 2. PURPOSE The primary purpose of the dissertation is to analyze and understand the needs of the Usuthu-Mhlathuze CMA as well as MW's competencies so as to develop positioning strategy for MW. To achieve the primary purpose of the dissertation the following research objectives have been identified: • Identification of the needs of the target CMA. • Identification ofMW's strengths and weaknesses to see ifMW can satisfy the needs of the target CMA. • Analysis of competitors' strengths and weaknesses to measure MW against competitors. The three analyses will provide a base essential for developing and recommending a positioning strategy to MW. 3. METHODOLOGY The customer needs analysis information of the Usuthu-Mhlathuze CMA was mainly sourced from the following documents: • Usuthu-Mhlathuze Situation assessment (Appendix 1). • Proposal to establish the Usuthu-Mhlathuze CMA (Appendix 2). • Legal review on CMAs (Appendix 3). • Australian documentation on catchment management institutions (Appendix 4). For the competitor analysis, a profile of most organizations m the water sector operating in the area of the CMA was sourced from MW's consultants panel for various disciplines (Appendix 5). The internal analysis was compiled using information from reports produced by MW in the last five years and was also informed MW's participation in various studies and projects in the catchment management area (Appendix 6). Strategic employees from various MW's departments were contacted with the view of authenticating the analysis findings. 4. FINDINGS AND CONCLUSION A number of areas of need for the imminent Usuthu to Mhlathuze CMA were identified. These included water quality management, flood management, construction and operation of waterworks, monitoring the performance of water users, monitoring the condition of water resources, alien vegetation management, education on water resource management, promotion of community participation, ensuring access to information regarding water resource management, development of a Catchment Management Strategy, provision of water to meet environmental needs, ensuring sustainable water sharing and efficient water use, and pursuing opportunities for productive use of alternative the water source. The competitor analysis (Appendix 7) provided the strengths and weaknesses of competitors likely to target the CMA as service providers. The likely major competitors of MW are: Scott Wilson, BKS, Jeffares and Green Consulting Engineers, Water Resource Planning and Conservation Consulting Engineers and Ninham Shand Consulting Engineers. Scott Wilson and DMM partnership have major strengths that MW would need to be aware of in developing a positioning strategy. The other competitors do not offer a suite of water resource management service. They are therefore not expected to be MW's major rivalries. 5. RECCOMENDATIONS MW should position itself as the low cost service provider because the imminent CMA will be very price sensitive. Apart from positioning itself as a low cost provider, MW should also position itself as a deliver good quality services. MW's strengths in terms of experience, expertise, knowledge and understating of the water resource dynamics demonstrate that MW can safely position itself as a deliver good quality services. MW is the only water resources management services provider that provides a suite of water resources management functions (Table 5.1, p. 49). The organization is also the only service provider that acts as an implementing agent that already provides water resource management services for DWAF (de facto CMA). Based on this, and the fact that MW is well known (DWAF, 2003), it is appropriate for MW to also position itself as leader in water resources management in the CMA area of operation (Thompson and Strickland, 2003). The most appropriate promotional tool that will solicit immediate response and cultivate lasting customer relationship for MW is direct marketing (Kotler, 2000). This means that MW must package their service offerings and go and sell them directly to the de fact CMA and later to the CMA. The benefits of using this tool is that the message will be specifically directed to the prospect specifically prepared to appeal to CMA and can be immediately changed depending on the response (Kotler, 2000). / Thesis (M.B.A.)-University of KwaZulu-Natal, Pietermaritzburg, 2004.

Social-ecological systems of traditional pastoralists are adapted to deal with shocks and stresses such as droughts and livestock disease that characterize their environment. However, inappropriate policies have undermined the resilience of pastoralist social-ecological systems at a time when stresses from new challenges, such as growth in the human population and global climate change are increasing. Many pastoralist groups such as the Gabra of north-central Kenya now regularly require emergency relief. There is an urgent need to take deliberate steps to rebuild the resilience of pastoralist social-ecological systems. One lever that external actors such as NGOs and government agencies have that could help them to do so relates to structures and processes of participation and decision-making. The purpose of this research, therefore, was to examine ways in which the approaches to public participation used by agencies involved in water resources management can affect the collective capacity of pastoralist institutions and communities to influence social-ecological resilience. The research revolved around a single case study: the Kenyan NGO Pastoralist Integrated Support Programme (PISP) together with the Gabra communities where PISP works. The research found that the capacity to influence resilience resides in the network of vertical and horizontal institutional linkages as much as it does in any particular organization or institution. This implies the need for a radical paradigm shift in the way that NGOs and other formal sector actors think of participation and of their role. An examination of the Gabra approach to decision-making and PISP's approach to participation point to an alternative way of thinking about participation. This alternative rationale for participation would call on formal sector actors to promote participation and inclusivity of decision-making at multiple levels of social organization through an array of interconnected processes and institutions, to foster deliberation processes that are nested across levels, and to help create and strengthen vertical institutional linkages for their beneficiary communities. These proposed strategies relate to a key contribution of this research, which is to suggest building a resilience-based theory of participation and to provide a glimpse of what such a theory might entail.

The main goal of this research is to develop and test a groundwater recharge estimation method that can address some of the key research priorities in groundwater. In this context use is made of various modelling tools including ArcGIS, field data (in situ observations of soil temperature and soil moisture), and soil physics as represented by a physically based vadose zone hydrologic model (HYDRUS-1D). The research is conducted in a pilot watershed in north Okanagan, Canada. The public version of HYDUS-1D and another version with detailed freezing and thawing module are first used to investigate seasonal distribution of heat and water movement in the vadose zone. Model performance is evaluated in different scales by using field data, the gradient-based optimization algorithm of HYDRUS-1D, and ROSETTA derived prior information about soil hydraulic parameters. The latter are fitted to statistical distributions and used in Monte-Carlo experiments to assess the potential uncertainty in groundwater recharge due to model parameters. Next, the significance of the recharge estimation method for catchment scale transient groundwater modelling is demonstrated by applying uniform and variable flux boundary condition to a saturated zone transient groundwater model, MIKESHE. The results showed that the traditional uniform recharge assumption can lead to misleading decisions related to water resources management and pumping well network design. The effect of pumping well network and the provincial Water Act on water resources sustainability are further examined in an evolving climate. The results suggest potential water resource problem in the basin, which can possibly be attributed to the previously installed pumping well network (depth and screen level), and the provincial water use policy. The findings of this study demonstrate that such problems related to inappropriate well network and water resource management can greatly be minimised with the use of the recharge estimation method developed in this study.

Social-ecological systems of traditional pastoralists are adapted to deal with shocks and stresses such as droughts and livestock disease that characterize their environment. However, inappropriate policies have undermined the resilience of pastoralist social-ecological systems at a time when stresses from new challenges, such as growth in the human population and global climate change are increasing. Many pastoralist groups such as the Gabra of north-central Kenya now regularly require emergency relief. There is an urgent need to take deliberate steps to rebuild the resilience of pastoralist social-ecological systems. One lever that external actors such as NGOs and government agencies have that could help them to do so relates to structures and processes of participation and decision-making. The purpose of this research, therefore, was to examine ways in which the approaches to public participation used by agencies involved in water resources management can affect the collective capacity of pastoralist institutions and communities to influence social-ecological resilience. The research revolved around a single case study: the Kenyan NGO Pastoralist Integrated Support Programme (PISP) together with the Gabra communities where PISP works. The research found that the capacity to influence resilience resides in the network of vertical and horizontal institutional linkages as much as it does in any particular organization or institution. This implies the need for a radical paradigm shift in the way that NGOs and other formal sector actors think of participation and of their role. An examination of the Gabra approach to decision-making and PISP's approach to participation point to an alternative way of thinking about participation. This alternative rationale for participation would call on formal sector actors to promote participation and inclusivity of decision-making at multiple levels of social organization through an array of interconnected processes and institutions, to foster deliberation processes that are nested across levels, and to help create and strengthen vertical institutional linkages for their beneficiary communities. These proposed strategies relate to a key contribution of this research, which is to suggest building a resilience-based theory of participation and to provide a glimpse of what such a theory might entail.

Thesis (Ph. D.)--University of California at Berkeley, 1995. / Includes bibliographical references (leaves 181-206).

Thesis (Ph. D.)--University of Queensland, 2003. / Includes bibliographical references.

abstract: Over the past century in the southwestern United States human actions have altered hydrological processes that shape riparian ecosystems. One change, release of treated wastewater into waterways, has created perennial base flows and increased nutrient availability in ephemeral or intermittent channels. While there are benefits to utilizing treated wastewater for environmental flows, there are numerous unresolved ecohydrological issues regarding the efficacy of effluent to sustain groundwater-dependent riparian ecosystems. This research examined how nutrient-rich effluent, released into waterways with varying depths to groundwater, influences riparian plant community development. Statewide analysis of spatial and temporal patterns of effluent generation and release revealed that hydrogeomorphic setting significantly influences downstream riparian response. Approximately 70% of effluent released is into deep groundwater systems, which produced the lowest riparian development. A greenhouse study assessed how varying concentrations of nitrogen and phosphorus, emulating levels in effluent, influenced plant community response. With increasing nitrogen concentrations, vegetation emerging from riparian seed banks had greater biomass, reduced species richness, and greater abundance of nitrophilic species. The effluent-dominated Santa Cruz River in southern Arizona, with a shallow groundwater upper reach and deep groundwater lower reach, served as a study river while the San Pedro River provided a control. Analysis revealed that woody species richness and composition were similar between the two systems. Hydric pioneers (Populus fremontii, Salix gooddingii) were dominant at perennial sites on both rivers. Nitrophilic species (Conium maculatum, Polygonum lapathifolium) dominated herbaceous plant communities and plant heights were greatest in effluent-dominated reaches. Riparian vegetation declined with increasing downstream distance in the upper Santa Cruz, while patterns in the lower Santa Cruz were confounded by additional downstream agricultural input and a channelized floodplain. There were distinct longitudinal and lateral shifts toward more xeric species with increasing downstream distance and increasing lateral distance from the low-flow channel. Patterns in the upper and lower Santa Cruz reaches indicate that water availability drives riparian vegetation outcomes below treatment facilities. Ultimately, this research informs decision processes and increases adaptive capacity for water resources policy and management through the integration of ecological data in decision frameworks regarding the release of effluent for environmental flows. / Dissertation/Thesis / Ph.D. Plant Biology 2011

Uncertainty associated with the potential impact of climate change on supply availability, varied success with demand-side interventions such as water efficiency and changes in priority relating to hydrometric data collection and ownership, have resulted in challenges for water resources system management particularly in data-sparse regions. Consequently, the aim of this thesis is to assess the reliability, resilience and sustainability of water resources systems in both data-rich and data-sparse regions with an emphasis on robust decision-making in data-sparse regions. To achieve this aim, new resilience indicators that capture water resources system failure duration and extent of failure (i.e. failure magnitude) from a social and environmental perspective were developed. These performance indicators enabled a comprehensive assessment of a number of performance enhancing interventions, which resulted in the identification of a set of intervention strategies that showed potential to improve reliability, resilience and sustainability in the case studies examined. Finally, a multi-criteria decision analysis supported trade-off decision making when the reliability, resilience and sustainability indicators were considered in combination. Two case studies were considered in this research: Kingston and St. Andrew in Jamaica and Anyplace in the UK. The Kingston and St. Andrew case study represents the main data-sparse case study where many assumptions were introduced to fill data gaps. The intervention strategy that showed great potential to improve reliability, resilience and sustainability identified from Kingston and St. Andrew water resources assessment was the ‘Site A-east’ desalination scheme. To ameliorate uncertainty and lack of confidence associated with results, a methodology was developed that transformed a key proportion of the Anyplace water resources system from a data-rich environment to a data-sparse environment. The Anyplace water resources system was then assessed in a data-sparse environment and the performance trade-offs of the intervention strategies were analysed using four multi-criteria decision analysis (MCDA) weighting combinations. The MCDA facilitated a robust comparison of the interventions’ performances in the data-rich and data-sparse case studies. Comparisons showed consistency in the performances of the interventions across data-rich and data-sparse hydrological conditions and serve to demonstrate to decision makers a novel approach to addressing uncertainty when many assumptions have been introduced in the water resources management process due to data sparsity.

abstract: With the ongoing drought surpassing a decade in Arizona, scholars, water managers and decision-makers have heightened attention to the availability of water resources, especially in rapidly growing regions where demand may outgrow supplies or outpace the capacity of the community water systems. Community water system managing entities and the biophysical and social characteristics of a place mediate communities' vulnerability to hazards such as drought and long-term climate change. The arid southwestern Phoenix metropolitan area is illustrative of the challenges that developed urban areas in arid climates face globally as population growth and climate change stress already fragile human-environmental systems. This thesis reveals the factors abating and exacerbating differential community water system vulnerability to water scarcity in communities simultaneously facing drought and rapid peri-urban growth. Employing a grounded, qualitative comparative case study approach, this thesis explores the interaction of social, biophysical and institutional factors as they effect the exposure, sensitivity and adaptive capacity of community water systems in Cave Creek and Buckeye, Arizona. Buckeye, once a small agricultural town in the West Valley, is wholly dependent on groundwater and currently planning for massive development to accommodate 218,591 new residents by 2020. Amid desert hills and near Tonto National Forest in the North Valley, Cave Creek is an upscale residential community suffering frequent water outages due to aging infrastructure and lack of system redundancy. Analyzing interviews, media accounts and policy documents, a narrative was composed explaining how place based factors, nested within a regional institutional water management framework, impact short and long-term vulnerability. This research adds to the library of vulnerability assessments completed using Polsky et al.'s Vulnerability Scoping Diagram and serves a pragmatic need assisting in the development of decision making tools that better represent the drivers of placed based vulnerability in arid metropolitan regions. / Dissertation/Thesis / M.A. Geological Sciences 2011