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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Responding to water demand strategies : case study in the Lower Orange catchment management area (LOCMA) / C.M. Gouws.

Gouws, Catharina Maria January 2010 (has links)
This study is an investigation into water management policies in South Africa, their effect on water users and the perceptions users have of these policies. The investigation begins with an exposition of concepts such as water demand management (WDM), as well as integrated water resource management (IWRM). A sub-discourse of the main theme is the societal tendency to neglect its common property. Garret Hardin's groundbreaking observations on the "tragedy of the commons" (1968) are explored in an effort to locate issues of relevance in effective water management strategies. In contemplating the commons, it is evident that aspects of morality and ethics are involved. The morality of a society be it in a global or national context, seems to manifest itself in legislation and policies, and in the way these are implemented. The relevance of good governance, hydropolitics and sustainable development is also discussed to provide the necessary theoretical background to an understanding of the relationship between consumers and the water commons. Access to safe drinking water is protected in the Constitution of the Republic of South Africa Act, 108 of 1996. Flowing from the government's obligation to take reasonable legislative and other measures to achieve the progressive realisation of fundamental human rights stipulated in section 27(2) of the Constitution, the challenge since 1994 has been to provide access to water for all inhabitants and to manage the available water resources effectively. Furthermore, the objective of subsequent water legislation such as the National Water Act, 36 of 1998 and regulatory plans, like the National Water Resource Strategy has been to incorporate international trends in water governance. The Department of Water and Environmental Affairs (DWEA) divided South Africa into 19 regions, called water management areas (WMA). In this study, attention is focused on what constitutes a catchment and how a catchment management agency (CMA) governs its water resources. A description is provided of the functions of water user associations (WUAs) and how ththe Lower Orange Catchment Management Area is, for example, the blueprint from which stakeholders develop their goals. In this study, the water situation in the Lower Orange Water Management Area is under scrutiny. The focus is on the three main institutional components of water management (the Lower Orange catchment management, the Upington Islands Water User Association [UIWUA] and the //Khara Hais Local Municipality). The progress of the establishment of the Lower Orange Catchment Management Agency is outlined over a period of five years. Meanwhile, the Upington Islands Water User Association was developed and this has grown in stature. The work being done by these institutions is investigated by looking at grassroots effects, especially in respect of irrigation activities. The unique water management circumstances of the //Khara Hais Local Municipality are then investigated along with the plans outlined in their Integrated Development Plan {lOP) and their Water Services Development Plane Internal Strategic Perspective (ISP) of(WSDP). Because local irrigation operations consume most of the available surface water in the Lower Orange Water Management Area, irrigation farmers and their activities warrant closer attention. A historical overview is given of the development of irrigation in the region followed by an assessment of the role of two of the most prominent historical figures in Upington, Reverend Adriaan Schroder and Abraham "Holbors" September. Ultimately, however, the focus falls on the current state of irrigation in the area. It is possible to distinguish between the approach of large commercial farming operations and that of smaller irrigation farming units to irrigation. Specific attention is given to the perceptions of irrigation farmers as far as the policies and legislation pertaining to water issues is concerned. This study will hopefully provide the Department of Water and Environmental Affairs(DWEA), //Khara Hais Local Municipality and organised agriculture with some recommendations on efficient integrated water management strategies. It might well be of value to other municipalities who are experiencing similar problems. The aim has been to identify typical problems and potential disputes between water management institutions and relevant role-players. / Thesis (Ph.D. (Public Management and Administration))--North-West University, Vaal Triangle Campus, 2010.
12

Responding to water demand strategies : case study in the Lower Orange catchment management area (LOCMA) / C.M. Gouws.

Gouws, Catharina Maria January 2010 (has links)
This study is an investigation into water management policies in South Africa, their effect on water users and the perceptions users have of these policies. The investigation begins with an exposition of concepts such as water demand management (WDM), as well as integrated water resource management (IWRM). A sub-discourse of the main theme is the societal tendency to neglect its common property. Garret Hardin's groundbreaking observations on the "tragedy of the commons" (1968) are explored in an effort to locate issues of relevance in effective water management strategies. In contemplating the commons, it is evident that aspects of morality and ethics are involved. The morality of a society be it in a global or national context, seems to manifest itself in legislation and policies, and in the way these are implemented. The relevance of good governance, hydropolitics and sustainable development is also discussed to provide the necessary theoretical background to an understanding of the relationship between consumers and the water commons. Access to safe drinking water is protected in the Constitution of the Republic of South Africa Act, 108 of 1996. Flowing from the government's obligation to take reasonable legislative and other measures to achieve the progressive realisation of fundamental human rights stipulated in section 27(2) of the Constitution, the challenge since 1994 has been to provide access to water for all inhabitants and to manage the available water resources effectively. Furthermore, the objective of subsequent water legislation such as the National Water Act, 36 of 1998 and regulatory plans, like the National Water Resource Strategy has been to incorporate international trends in water governance. The Department of Water and Environmental Affairs (DWEA) divided South Africa into 19 regions, called water management areas (WMA). In this study, attention is focused on what constitutes a catchment and how a catchment management agency (CMA) governs its water resources. A description is provided of the functions of water user associations (WUAs) and how ththe Lower Orange Catchment Management Area is, for example, the blueprint from which stakeholders develop their goals. In this study, the water situation in the Lower Orange Water Management Area is under scrutiny. The focus is on the three main institutional components of water management (the Lower Orange catchment management, the Upington Islands Water User Association [UIWUA] and the //Khara Hais Local Municipality). The progress of the establishment of the Lower Orange Catchment Management Agency is outlined over a period of five years. Meanwhile, the Upington Islands Water User Association was developed and this has grown in stature. The work being done by these institutions is investigated by looking at grassroots effects, especially in respect of irrigation activities. The unique water management circumstances of the //Khara Hais Local Municipality are then investigated along with the plans outlined in their Integrated Development Plan {lOP) and their Water Services Development Plane Internal Strategic Perspective (ISP) of(WSDP). Because local irrigation operations consume most of the available surface water in the Lower Orange Water Management Area, irrigation farmers and their activities warrant closer attention. A historical overview is given of the development of irrigation in the region followed by an assessment of the role of two of the most prominent historical figures in Upington, Reverend Adriaan Schroder and Abraham "Holbors" September. Ultimately, however, the focus falls on the current state of irrigation in the area. It is possible to distinguish between the approach of large commercial farming operations and that of smaller irrigation farming units to irrigation. Specific attention is given to the perceptions of irrigation farmers as far as the policies and legislation pertaining to water issues is concerned. This study will hopefully provide the Department of Water and Environmental Affairs(DWEA), //Khara Hais Local Municipality and organised agriculture with some recommendations on efficient integrated water management strategies. It might well be of value to other municipalities who are experiencing similar problems. The aim has been to identify typical problems and potential disputes between water management institutions and relevant role-players. / Thesis (Ph.D. (Public Management and Administration))--North-West University, Vaal Triangle Campus, 2010.
13

Participatory irrigation management and the factors that influence the success of farmer water use communities : a case study in Cambodia : a dissertation presented in partial fulfilment of the requirements for the degree of Master of Applied Science in Environmental Management at Massey University, New Zealand

Ros, Bandeth January 2010 (has links)
The Participatory Irrigation Management approach was introduced into Cambodia in 2000, which was called the Participatory Irrigation Management and Development (PIMD). The goal of PIMD is to establish Farmer Water User Communities (FWUCs) to take over the management of irrigation schemes in their district in order to improve the performance of irrigation schemes and farmers’ livelihoods. The implementation of FWUCs has resulted in both failure and success. Several studies have identified factors that influence the failure of FWUCs, but little research has focused on their success. By employing a single embedded case study approach, this research selected the most successful scheme in Cambodia to identify factors that influenced the success of the FWUC in irrigation management. The findings of this research could provide concrete assistance to the government, donors, and non-governmental organisations in improving the performance of less successful FWUCs in Cambodia. The result of this research showed that the success of the O-treing FWUC was influenced by five internal and two external factors. The internal factors were: 1) the level of local participation, 2) the governance and management of the scheme, 3) the value of the benefits that flow from the irrigation scheme, 4) the quality of the irrigation infrastructure, and 5) the characteristics of the farmer members within the scheme. The external factors were: 1) the level of external support provided to the scheme, and 2) market access. The success of the FWUC required farmer participation and this participation was enhanced when farmers obtained benefits from it. This research also found that access to markets was critical to make the benefits that flowed from the irrigation scheme more profitable to farmers, leading to farmer participation. Similarly, it was also important to make sure that the irrigation infrastructure was of a high quality to ensure the delivery of an adequate and timely supply of water to farmers so that they could grow crops that provided them with the benefits. This required external support from the Ministry of Water Resources and Meteorology, NGOs, and local authorities to help rehabilitate the scheme. External support was also critical for enhancing the governance and management of the scheme through assistance with the formation process, provision of financial resources, capacity building, rule enforcement, and conflict resolution. The governance and management of the scheme, in particular the leadership capacity of the FWUC was another critical factor because it ensured the maintenance and development of the irrigation infrastructure, the timely and adequate supply of water to farmers, farmers’ trust and respect for leaders, and farmer participation. Finally, the success of the FWUC could not be viewed independently from farmer characteristics within the scheme. Farmers tended to participate in irrigation management when they had a history of self-organisation, when they were relatively homogenous, and when they were dependent upon farming for their livelihoods. This research suggests that the successful implementation of FWUCs requires a focus on the seven factors and the interactions that occur between these factors. Irrigation stakeholders such as the Ministry of Water Resources and Meteorology, donors, NGOs, local authorities, local leaders, and farmers should work together to enhance these factors in order to ensure the success of FWUCs.
14

Vattenanvändning hos samhällsbrukare : En studie om flöden och maxfaktorer för en förbättrad dimensionering / Water usage for different users : A study on flows and max factors for an improved sizing

Holm, Emelie January 2017 (has links)
För att vatten ska kunna levereras enligt de krav som ställs från användarna i samhället behövs ett väl anpassat ledningsnät. Det innebär bland annat att vatten ska finnas tillgängligt i den mängd som behövs och vid den tidpunkt som vatten krävs. För att vattenreningsverken ska kunna leverera rätt mängd vatten måste ledningsnätet vara dimensionerat för att kunna transportera allt vatten som skall pumpas ut till användarna. Detta kräver en god uppskattning om de vattenflöden som behövs. Det förväntade vattenflödet till olika samhällsanvändare uppskattas utifrån befintliga användningsmönster samt publikation P83, framtagen av Svenskt Vatten. Allt eftersom samhället utvecklas behöver publikationen uppdateras för att denna ska stämma så väl överens med verkligheten som möjligt. Vattenanvändningsmönster i skolor, kontor, handelsområden och industrier undersöktes som en del av ett pågående projekt för att undersöka om P83 bör uppdateras. För dessa har år- och dygnsvariationer, flöden och maxfaktorer analyserats från årslånga mätserier. Utifrån uppmätta värden kunde alternativa fördelningsnycklar som potentiellt skulle bidra till förbättring också analyseras. Resultaten tyder på att det finns förbättringsmöjligheter för flödesberäkningar för brukartyperna skolor, handel och industri jämfört med dagens metoder. För skolor och handel skulle inomhusarea vara en relevant fördelningsnyckel att använda vid beräkningar medan takyta vore en mer lämplig parameter att använda för industrier. De maxfaktorer som finns angivna i P83 stämde inte särskilt väl överens med de uppmätta i studien och skulle behöva uppdateras. Studien visar också på ett behov av att dela upp de brukarkategorier som finns i dagsläget till fler kategorier då de tre som finns i dagsläget är mycket generella. Dessutom undersöktes möjligheten att kombinera olika brukartyper för att utjämna vattenflöden under dygnet. Villor eller radhus bör lämpligen kombineras med skolor, kontor eller industrier för att få ett jämnare vattenflöde under dagtid. / For water to be delivered according to the requirements of the users in the society there is a need for the water pipelines to be well dimensioned. This means that the amount of water that is needed has to be available at the time when it is required. For the water treatment plants to be able to deliver the right amount of water the pipelines must be sized to carry the water that should be delivered to the users. This requires a good estimate of the amount of water needed. The expected water flow to different users is estimated based on existing water usage patterns as well as the P83 publication, developed by Swedish Water. As society develops the publication may need to be updated to correspond well with reality. Water use patterns in schools, offices, retail stores and industries were examined as a part of an ongoing project to investigate whether P83 should be updated. For these annual and diurnal variations, water flows and max factors were analyzed from yearlong series of measurements. Based on the measured values alternate allocation keys that could potentially contribute to improvement were analyzed. The results suggest that there are possible improvements for flow calculations for schools, retail stores and industry compared to current methods. For schools and retail stores the indoor area would be a relevant variable to use for calculations, while the roof area would be a more appropriate variable to use for industries. The max factors listed in P83 did not agree with those measured in the study and would need to be updated. The study shows that the three categories used in P83 are very general and ought to be divided into more specific categories. Furthermore, the possibility to combine different types of water users to equalize the water flow to an area during the day was analyzed. Villas or semi-attached houses should preferably be combined with schools, offices or industries for evening out the flow during day time.

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