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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.
141

Gestão compartilhada de recursos hídricos: um análise da percepção da cobrança pelo uso da água na Bacia do Rio Pirapama – PE

DIAS, Thiago Ferreira 14 December 2007 (has links)
Submitted by (edna.saturno@ufrpe.br) on 2016-06-09T15:50:28Z No. of bitstreams: 1 Thiago Ferreira Dias.pdf: 1306308 bytes, checksum: d61da93a185f37f7ee1690e5b5b5c035 (MD5) / Made available in DSpace on 2016-06-09T15:50:28Z (GMT). No. of bitstreams: 1 Thiago Ferreira Dias.pdf: 1306308 bytes, checksum: d61da93a185f37f7ee1690e5b5b5c035 (MD5) Previous issue date: 2007-12-14 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / This research analyzes the perception of the main users of the model of shared management of the use of water in the scope of the Committee of Water Basin of Pirapama River, in Pernambuco about the costs of water use. For this purpose, the research relays on the theoretical concept of negative externalities and the methods of valuation of the water resources. For working with the perception of the recovery for the water use, the situation of water resources in the world and Brazil was analyzed, as well the experiences of implementation of the economic instrument of the recovery for the water use. As methodological support for execution of the research there were half-structuralized interviews, analysis of bibliographical material and official documents, that had subsidized the analysis of the data for concretion of the research. The data analysis concluded that proposal methodological of recovery for the use of water elaborated for the River Basin of Pirapama, in 2000, had greater focus in the economic aspects in detriment of the perception of the members of the Committee on the recovery. In relation to the central objective of the research, it was realized that there is a lack of knowledge on the motivations for introduction of a recovery, as well as fidgets about the operationalization of the recovery and the effective destination of the collected values on contrary perceptions to the recovery for the use of the water in Pirapama River Basin. These doubts are also shared by the favorable members of the recovery. It was seen that the debate on the recovery for the water use exceeded the barriers of the Pirapama Basin and reached Pernambuco, through the debates stimulated by the Technique Chamber of Recovery of the Water Resources State Council. The first concrete results of the Technique Chamber of Recovery were the law project draft that would regulate the recovery for the use of the water resources under the domain of the State of Pernambuco, and its debate has been paralyzed due to political changes in government. Finally, in despite of the importance of the recovery for the use of water as a powerful instrument, it should not be considered just a collection issue apart from the other instruments of the National Politics of Water Resources, and for its implementation it is necessary to start a work of sensitization and awareness on the paper of the recovery for the use of water and the benefits that could be generated for society. / Esta pesquisa analisa a percepção dos principais usuários do modelo de gestão compartilhada do uso da água no âmbito do Comitê de Bacia Hidrográfica do Rio Pirapama, em Pernambuco, quanto à cobrança pelo uso da água. Para isso, apóia-se no ferramental teórico a partir do conceito de externalidade negativa e dos métodos de valoração dos recursos hídricos. No propósito de trabalhar a percepção da cobrança pelo uso da água foi abordada a situação dos recursos hídricos no mundo e no Brasil, bem como as experiências de implementação do instrumento econômico da cobrança pelo uso da água. Como aparato metodológico para execução da pesquisa realizaram-se entrevistas semi-estruturadas, análise de material bibliográfico e documentos oficiais, que subsidiaram a análise dos dados para concretização da pesquisa. A análise dos dados concluiu que a proposta metodológica de cobrança pelo uso da água elaborada para a Bacia do Rio Pirapama em 2000 teve maior foco nos aspectos econômicos em detrimento à percepção dos membros do Comitê sobre a efetiva cobrança. Quanto ao objetivo central da pesquisa, observou-se que as percepções contrárias à cobrança pelo uso da água na Bacia do Rio Pirapama são marcadas pela falta de conhecimento sobre as motivações da introdução de uma cobrança, bem como inquietações quanto à operacionalização da cobrança e a efetiva destinação dos valores arrecadados. Essas dúvidas são compartilhadas pelos membros favoráveis à cobrança. Verificou-se que o debate sobre a cobrança pelo uso da água ultrapassa os limites da Bacia do Pirapama, alcançando o âmbito estadual de Pernambuco, através dos debates realizados pela Câmara Técnica de Cobrança do Conselho Estadual de Recursos Hídricos. Os primeiros resultados concretos desse debate foram a minuta de projeto de lei que regulamentaria a cobrança pelo uso dos recursos hídricos de domínio do Estado de Pernambuco. Em conclusão, verifica-se que, apesar da cobrança pelo uso da água ser um instrumento poderoso, ele não deve ser visto como um mero elemento de arrecadação, isolado dos demais instrumentos da Política Nacional de Recursos Hídricos, e que para sua implementação faz-se necessário um trabalho de sensibilização e conscientização sobre o papel da cobrança e os benefícios que poderão daí serem gerados para a sociedade.
142

SICOF : sistema de informação distribuido para controle de licenças e outorgas de direito de uso de recursos hidricos

Penteado, Antonio Henrique Dantas da Gama 31 January 2006 (has links)
Orientador: Sueli Yoshinaga Pereira / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Geociencias / Made available in DSpace on 2018-08-11T00:46:58Z (GMT). No. of bitstreams: 1 Penteado_AntonioHenriqueDantasdaGama_D.pdf: 2937340 bytes, checksum: 0d1fdfb079fad03ce60bc155ef48f8d4 (MD5) Previous issue date: 2006 / Resumo: Este trabalho tem por finalidade apresentar um protótipo de sistema de informação arquitetado e desenvolvido para auxiliar a gestão dos recursos hídricos no Estado de São Paulo. Esse sistema de informação para controle de outorgas e fiscalização, chamado de SICOF, foi desenhado para manter uma base de dados com informações sobre usuários e diferentes usos de recursos hídricos, e desenvolvido para amparar o Departamento de Águas e Energia Elétrica (DAEE) do Estado de São Paulo em algumas de suas funções administrativas básicas. O DAEE é o órgão competente para contemplar os usuários de recursos hídricos com o direito de uso da água. Para essa obrigação, adota como base a Portaria DAEE no 717/96. Essa portaria disciplina a forma e o conteúdo a ser apresentado ao DAEE no ato de solicitação do direito de uso por parte de um usuário, e foi empregada como padrão para o desenvolvimento do SICOF. Esse protótipo foi desenvolvido com as tecnologias Microsoft JavaScript, JScript e ASP, e estruturado para operar bancos de dados em redes fechadas ou internet. Foram utilizados: o padrão de modelagem de software chamado UML (Unified Modeling Language); o conceito de estruturação de sistemas em camadas; e o conceito de sistemas distribuídos via internet. As bases de dados foram desenvolvidas com o Microsoft ACCESS e são operadas por de linhas de programação. A opção pelas ferramentas acima mencionadas foi feita na busca de se produzir uma solução para atender ao aspecto descentralizador das políticas paulista e brasileira de recursos hídricos (Lei no 7.663/91 ¿ São Paulo; Lei Federal no 7.663/97), com baixo custo operacional e de implantação, elevado potencial de integralização dos dados e facilidade de operação. Sua arquitetura foi desmembrada em diferentes subsistemas que estão disponíveis ao seu operador: a) USUARIOS ¿ para dados de usuários, pessoas físicas ou jurídicas, de seus domicílios válidos; b) IMPLANTAR ¿para cadastrar resumidamente os diferentes usos de recursos hídricos, localização geográfica e valores de uso e consumo; c) AUTOS ¿ que relaciona solicitações de direto de uso aos números de processos e às respectivas certificações de direito de uso; d) UNIFILAR ¿ para pesquisa orientada por bacia hidrográfica, cujo resultado é a consolidação das ocorrências existentes em bacias hidrográficas informadas pelos usuários do sistema; e) SIPP ¿ para cadastramento técnico de poços perfurados. Tem como funções básicas: 1) adquirir informações via páginas e aplicativos internet; 2) armazenar informações em bases de dados relacionais via objetos de conectividade de base de dados; 3) integrar informações provenientes de bases de dados independentes; 4) gerar registros, fichas, tabelas e relatórios em formatos ASCII, HTM ou XML. O SICOF também pode ser utilizado como alimentador de bases de dados, uma vez que os dados são uniformemente formatados e podem ser transferidos para outros sistemas que operam dados diversos e georeferenciados. Por ser estruturado em linguagem simples e aberta, esse protótipo pode ser adaptado para novas funções quando surgirem novas necessidades. Por ter sido modelado ante sua concepção, pode ser reescrito e editado em outras linguagens de programação. Por fim, representa uma progressão científica em termos de aplicação de tecnologias na busca de soluções de baixo custo para otimizar a gestão dos recursos hídricos no Estado de São Paulo / Abstract: The aim of this work is to present an information system prototype, which was planned and developed to help water resources management in São Paulo State, Brazil. This information system for water right-of-use control and inspection, named SICOF, was projected to maintain a database with information about water users and different water resources uses in delimited regions that are recognized as hydrographic basins. It was developed to support some basic administrative functions of the Department of Water and Electric Energy of São Paulo State (DAEE), which is the institution responsible for granting water right of use to water resources users. Formats for registering water right of use and water resources users, as well as for requiring water use licenses are adopted according to DAEE¿s Law #717/96, which was used as a guideline to develop the SICOF modeling system. SICOF was structured on the basis of the following Microsoft technologies: Java Script, JScript, Active Server Pages (ASP), and Internet Information Server (IIS). It was also programmed to operate databases through intranet or Internet systems. Databases were generated with Microsoft ACCESS, being handled by Microsoft OBDC object. As for SICOF architecture, it was planned using the Unified Modeling Language (UML) in association with concepts of 3-layered systems and distributed systems via Internet, and their basics functions are: 1) to acquire information through web pages and Internet applications; 2) to store information in relational databases by database connective objects; 3) to integrate information from independent databases; 4) to generate records, files, tables, and reports in ASCII, HTML, XML or other file formats. It was divided in into different subsystems that are available to the operator: a) USUARIOS ¿ for water resources users data, considering their valid address information; b) IMPLANTAR ¿ to summarily register information about different water resources uses, geographic position, and use and consume values; c) AUTOS ¿ relates each request of water right of use to a process number, as well as to its respective water use license; d) UNIFILAR ¿ for hydrographic basin-oriented research. Information provided by the system users will compose tables and forms related to a certain hydrographic basin; e) SIPP ¿ for registering technical information about drilled wells for groundwater. SICOF processes and formats data uniformly; therefore, it may be used to collect primary data and to feed database systems with geo-referenced information. The development of this system focused on two objectives: 1) to line up the decentralized policies to first objective, given by Law #7.663/91 (São Paulo State) and by Federal Law #9.433/97; 2) to create an open and friendly source architecture, using low cost tools. The developed system presented here has shown good functionality to treat an amount of data that refers to one decentralized institute of water resources management. It is composed of: i) a software with programs code, routines, scripts, and databases; ii) SICOF technical document, which can be used to guide future projects to develop software and systems for water resources management / Doutorado / Administração e Politica de Recursos Minerais / Doutor em Ciências
143

CobranÃa da Ãgua como instrumento financeiro: rateio de Custo / Collection of water as a financial instrument: cost sharing

Ailton Carneiro Martins de Oliveira 25 October 2011 (has links)
O objetivo deste trabalho à identificar os custos envolvidos no gerenciamento de recursos hÃdricos no Estado do CearÃ, papel este de responsabilidade da Companhia de GestÃo dos Recursos HÃdricos. ApÃs o levantamento desses custos, discute-se sobre alguns mÃtodos de apropriaÃÃo de custos, identificando qual se adapta melhor ao cenÃrio do CearÃ. AtravÃs do rateio de custos, identificamos a alocaÃÃo adequada destes e se aplica um mÃtodo de tarifaÃÃo pelo uso da Ãgua. Neste valor de cobranÃa estÃo inclusos os custo de operaÃÃo, administraÃÃo e operaÃÃo e de infraestrutura, este Ãltimo, geralmente, ignorado nos mÃtodos utilizados para se calcular o valor da tarifa a ser cobrada. No levantamento de infraestrutura realizado neste trabalho, encontrou-se que no Estado do Cearà existe mais de 1 bilhÃo de reais investidos em obras voltados para o gerenciamento de recursos hÃdricos, sem contar os custos da transposiÃÃo do Rio SÃo Francisco. ApÃs o rateio de custos foi aplicado o MÃtodo da Tarifa MÃdia utilizada pelo ConsÃrcio Tahal â JP Meio Ambiente para calcular a Tarifa MÃdia por Setor (TMS) de cada bacia hidrogrÃfica. Como resultado, temos que o valor da tarifa cobrada atualmente està bem abaixa da tarifa necessÃria para cobrir os custos de operaÃÃo, administraÃÃo, manutenÃÃo e infraestrutura. / The objective of this study is to identify the costs involved in managing water resourcesin CearÃ, a role of responsibility of the Water Resources Management Company. After identifying these costs, some methods of settlement are discussed, identifying which is best suited to CearÃâs reality. Through cost sharing, we identify the appropriate allocation of these and apply a method of charging for water usage. In this valueare included the costs of operation, management, operation and infrastructure, the latter usually ignored in the methods used to calculate the value of the tariff to be charged. When learning about the infrastructure during this research, we found that there is more than a billion dollars invested in the state of Cearafocused on the management of water resources, not including the costs of thetransposition of SÃo Francisco River. After the cost sharing method, the Average Tariff used by the Consortium Tahal - JP Environment was applied to calculate the Average Tariff by Industry in each section. As a result, we have that the tariff charged is currently below the rate needed to cover operation costs, administration, maintenance and infrastructure.
144

Classificação, associação e regionalização de dados de corpos hídricos : aplicação no monitoramento da água no estado de São Paulo / Classification, association and regionalization of data of water bodies : application in the monitoring of the water in the state of São Paulo

Bertholdo, Leonardo, 1975- 07 October 2013 (has links)
Orientador: Luiz Camolesi Júnior / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Tecnologia / Made available in DSpace on 2018-08-23T07:01:05Z (GMT). No. of bitstreams: 1 Bertholdo_Leonardo_M.pdf: 6089739 bytes, checksum: 0edb71eb3480bdabf30789057610ea1f (MD5) Previous issue date: 2013 / Resumo: A aplicação de recursos computacionais avançados no suporte aos sistemas de gestão ambiental vem se tornando cada vez mais frequente nas últimas décadas. A capacidade de processar e explorar grandes volumes de dados de forma sistemática, inerente a tais recursos, possibilita a extração de informações abrangentes e sintéticas, as quais podem servir como um importante insumo para o processo de controle ambiental. Nesse trabalho são empregadas técnicas de mineração de dados para a descoberta de conhecimento implícito no domínio de monitoramento de qualidade de água em corpos hídricos. A pesquisa está dividida em três frentes: a primeira busca descobrir regras de classificação de ecotoxicidade em amostras de água por meio de uma técnica de modelagem previsiva. Na segunda parte do estudo emprega-se uma técnica de análise associativa para investigar a presença de relacionamentos fortes entre os parâmetros que medem a qualidade de água. Por fim, a última frente utiliza uma abordagem de regionalização para encontrar pontos de amostragem de água similares com relação às medições de seus parâmetros de qualidade. Os resultados obtidos proporcionaram algumas descobertas, entre elas: a associação de determinados parâmetros de qualidade à toxicidade crônica da água, a existência de correlações entre alguns dos parâmetros de qualidade de água e a presença de grupos homogêneos entre os pontos de amostragem de água / Abstract: The application of advanced computational resources at the support to the environmental management systems is becoming increasingly frequent in recent decades. The ability to process and explore large volumes of data in systematic way, inherent in these resources, makes it possible to extract information comprehensive and synthetic, which can serve as an important input to the environment control process. This work used data mining techniques to discover implicit knowledge in the field of monitoring water quality in water bodies. The research is divided into three fronts: the first seeks to discover classification rules of ecotoxicity in water samples using a predictive modeling technique. In the second part of the study is used an associative analysis technique to investigate the presence of strong relationships between the parameters that measure the quality of water. Finally, the last front uses an approach of regionalization to find water sampling sites similar in relation to the measurements of their quality parameters. The results provided some discoveries, including: the association of certain quality parameters to the chronic toxicity of the water, the existence of correlations between some of the parameters of water quality and presence of homogeneous groups between the water sampling sites / Mestrado / Tecnologia e Inovação / Mestre em Tecnologia
145

Environmental Impacts on Guam's Water Security and Sustainable Management of the Resource

Khalaj-Teimoury, Masoud 12 May 2018 (has links)
<p> Impacts of climate change on the already severely strained freshwater resources of approximately 1000 inhabited islands in the Pacific Ocean are of great concern. The Western Pacific region is one of the world&rsquo;s most vulnerable when it comes to risk of disaster particularly for the several of the low-lying coral islands. Impacts have already been felt regarding the security of water resources that would directly impact agriculture, forestry, tourism and other industry-related sectors. The ironic and tragic aspect of the environmental crisis of greenhouse emissions is the fact that those parts of the world least responsible for creating the water security issues are the first to suffer its consequences. Pacific Island Nations are responsible for only 0.03 percent of the world&rsquo;s carbon dioxide emissions, and the average island resident produces only one-quarter of the emissions of the average person worldwide. </p><p> Utilizing the historical data, the evidence of change in water quality and access on Guam has been examined. All indicators except for the precipitation support the hypotheses that climate change trends are impacting Guam&rsquo;s water security. This will eventually weaken Guam&rsquo;s resilience. As a result of this research and its recommendations, a sustainable freshwater resources management plan, for a water-secured Guam can be produced. Adaptive management provided here is based on a process that can measure the resilience of Guam to the issue of water security.</p><p>
146

Analysis of Managerial Decision-Making within Florida’s Total Maximum Daily Load Program

Barthle, Justin 31 October 2016 (has links)
Water quality has evolved legislatively from protection of navigation routes and quantity of sources to more emphasis on impairments on water quality for surface and groundwater sources. Nonpoint or diffuse sources of impairments represents a major challenge for management due to the complexity of its sources and difficulty in tracking. The most cited sections on public policy analysis focuses on the overall process agencies employ to understand the results the program yields. Often overlooked are finer details and mechanisms, such as decision-making and priority setting, which have a great impact on the overall process. To investigate these factors, we need to analyze the decision-making process used by managers. This study focuses on using information from those with direct involvement in the establishment and implementation of the Total Maximum Daily Load program for the state of Florida. This study used decision-making analysis models from Rational-Decision-Making and Multi-Criteria Decision Analysis concepts to construct questionnaires that looks to develop priorities as seen by managers’ preferences for several presented options. This methodology allowed us to structure the viewpoints and processes water quality managers use to breakdown decisions. The analyzed results show water quality managers prefer strong management options, involvement from stakeholders with scientific knowledge, and data collected from the source or point of impact. Interestingly, opinions in the group show that urban best management practices are considered more effective than their agriculture counterparts with a disfavor for volunteer derived data. Ultimately, the survey highlights the need for more robust enforcement and reliable measurement of non-point source of impairments. Continued public outreach and education, especially through workshops, are denoted as important tasks to completing successful TMDLs and should be expanded and strengthened by both the Florida Department of Environmental Protection and its boundary programs.
147

Emerging farmers in water user associations cases from the Breede Water Management area

Saruchera, Davison January 2008 (has links)
Magister Philosophiae (Integrated Water Resource Management) - MPhl(IWM) / The aim of the study is to understand the level of co-operation between emerging and commercial farmers in a Water User Associations. The effort is expected to inform policy and improve practice in the building of new water institutions as government strives to implement IWRM. / South Africa
148

Realising the human right to water in Malawi through community participation

Mbano-Mweso, Ngcimezile Nia January 2015 (has links)
Doctor Legum - LLD / Lack of universal access to water is one of the fundamental failures of development in the 21st century. Women not only disproportionately bear the burden of lack of safe water but also have the least opportunity to take part in decisions regarding water services. This is a manifestation of the global water crisis caused by unequal relations of power, poverty and inequality related to gender, geographical location, class and race. Those who lack power find themselves at the peripheral of advantage from governance of water services. This thesis thus argues that the iconic slogan 'water is life' must be understood in both a biological and social sense. The social sense entails participatory living of citizens as equals in a community with others. The human right to water guarantees such living by recognising people as agents who must have power to affect outcomes through genuine participation. Participation is not a new thing especially in development approaches such as market-centred approaches of 1980s were different forms of participation in projects and programmes by states and development partners were advanced. These approaches resulted in participation as a tyranny, a mechanism of co-optation and legitimising the exercise of unjust power that perpetrates inequalities by sidelining the majority. The thesis identifies capability approach and the human right based approach to development as offering the best conception of participation away from concentration of power and pursuit of profit in the hands of a few elite. Capabilities and human rights treat people as human beings with the dignity and respect owed to every human being as a moral being and understand development as the development of certain human abilities or capabilities. This development of people and communities, as opposed to goods and services, is only possible if people participate effectively in the governance of development processes. Their emphasis is to go beyond ensuring the benefit of 'having' for instance water to also embrace the benefit of 'being' an equal citizen, sharing the benefits of 'participatory living' in a community of equals. The advantage of the human right based approach is that it has a strong foundation in law that compels states to act in a certain way to ensure legally recognised claims. The thesis establishes that there is a legally protected claim to water under the human right to water which is binding on states although the human right to water is unenumerated in the mainstream human rights treaties except for specified groups and situations. The claim to water under this human right is both in terms of a substantive normative standard and a procedural normative standard that guarantees beyond the human mode of 'having' into 'being' i.e. being a full member of society. These claims are legally binding and therefore enforceable against states. The human right to water requires states to adopt legislative and other non legislative measures that result in adequate and accessible water of good quality for all. States must take immediate, deliberate and concrete steps that include the formulation and implementation of national water policies and strategies in a transparent and nondiscriminatory manner to realise the human right to water. The formulation and implementation of national policies and strategies must ensure participation, human agency and dignity of all those affected by such decisions. The recognition of the human right to water in Malawi will provide an effective way of overcoming the lack of power and the 'tyranny of participation' which characterise water services in rural and peri-urban areas. / Norwegian Research Council
149

An enhanced microbial water quality monitoring design using a novel area prioritization approach to site selection

Venter, S.N. (Stephanus Nicolaas) 30 November 2005 (has links)
The Department of Water Affairs and Forestry (DW AF) is the custodian of South Africa's water resources and its primary role is to maintain the fitness for use of water on a sustained basis. DW AF recognized that management and assessment of fitness for use can only be based on reliable monitoring data. For this purpose DWAF has already for a number of years operated a national programme which collects data on the chemical and physical quality of South Africa's water resources. The microbial quality of surface water is of growing concern in a number of areas in South Africa. Water of poor microbial quality has serious implications for domestic, recreational and agricultural use due to the risk of water-borne diseases. DW AF acknowledged the need for information on the microbial quality of South Africa's water resources to assess and manage the potential health risk to water users. As an initial step the development of a national microbial monitoring programme to assess the faecal pollution of surface waters was initiated. This study describes the development of the conceptual design of such a programme and demonstrates how a novel area prioritization procedure enhanced the design. The focus of the programme was to be areas where human health might be severely impacted by the microbial quality of surface water. To identify such areas, a procedure for the identification and prioritization of specific areas of concern was developed and used as part of the design approach. Two factors were identified for the quantification of the potential health risk. They were the threat of microbial pollution of water (the result ofland use) and the exposure of consumers to the water (sensitivity of water uses). A number of land and water uses information sources therefore served as the basis for determining priority among the different areas. The described approach to identify and prioritize specific areas of concern has a number of benefits. Primarily, the approach assists in focusing the monitoring efforts on problem areas without a need for extensive historical microbial water quality data. The approach could be used to optimize the spatial distribution of sampling stations and assist in determining their national distribution. The approach also allows for phased implementation of the programme which facilitates the development of skills and capacity, as well as required infrastructure needed for the large scale operation of the programme. The approach to focus on impacted areas is generic enough not to be restricted to the design of microbial water quality monitoring systems. Other monitoring objectives could also be dealt with in the same manner. During evaluation of the design on a pilot scale the conceptual design was found to meet the set information objectives. The conceptual design for the programme also deals effectively with constraints and changes in the external environment in which it has to operate. Implementation of the national programme has started and plans to expand the programme are progressing well. The concept of high risk areas and the procedure to identify and prioritize such areas as developed during this study is a critical component of the overall design. The programme appears to address a significant information need on an important aspect of water resources management and to do so in an efficient and effective manner. / Thesis (PhD (Water Resource Management))--University of Pretoria, 2005. / Microbiology and Plant Pathology / unrestricted
150

Pegada hídrica da atividade suinícola na região do COREDE Serra

Carra, Sofia Helena Zanella 20 July 2015 (has links)
A atividade suinícola, assim como as demais atividades pecuárias, é diretamente dependente de recursos naturais e, portanto, a falta de conhecimento acerca do impacto sobre os recursos hídricos na atividade pecuária pode comprometer o crescimento do setor. Neste contexto, a pegada hídrica surge como um indicador abrangente do uso da água que permite avaliar qual é o consumo utilizado, direta ou indiretamente, para produzir um determinado produto ao longo de toda a cadeia produtiva. Este trabalho avaliou a pegada hídrica no desenvolvimento da atividade suinícola na região do Corede Serra, no Estado do Rio Grande do Sul, considerando os suínos abatidos no ano de 2014. O cálculo da pegada hídrica foi aplicado para o processo de produção das culturas de milho e soja, destinadas à alimentação dos suínos (pegada hídrica verde), para o processo de confinamento, onde foram considerados os volumes de água destinados a dessedentação animal, limpeza das áreas de criação e incorporação ao animal (pegada hídrica azul) e o volume de água necessário para diluir a carga de fósforo que lixivia em direção aos recursos hídricos a partir da aplicação dos dejetos com fertilizantes (pegada hídrica cinza). A pegada hídrica verde foi a mais significativa (59,35%), seguida pela pegada hídrica cinza (40,44%) e pela pegada hídrica azul (0,21%). Observa-se que o maior consumo de água está na produção das culturas de milho e soja, que são a base da alimentação dos animais e não na água associada ao processo de confinamento. Para reduzir a pegada hídrica verde é necessário aumentar a produtividade de milho e soja, através de investimentos em tecnologias e zoneamento, associado a programas e políticas públicas com vistas ao aumento da produtividade das culturas. Investir em modelos de bebedouros mais eficiente, que forneçam um volume adequado de água e atendam à fase de criação animal, apresenta-se como uma opção de baixo custo para a economia de água e consequente redução da pegada hídrica azul. A pegada hídrica cinza pode ser reduzida através do uso de tecnologias mais eficientes de tratamento dos dejetos suínos, de forma que o fósforo seja removido ou reduzido em baixas concentrações antes de ser aplicado no solo. Ao aplicar a metodologia da pegada hídrica em uma unidade de referência composta por trinta e um município, observou-se que o nível de detalhamento das informações necessárias para se obter um resultado compatível com a situação real, é um verdadeiro desafio. Os resultados obtidos a partir deste trabalho poderão ser utilizados no planejamento das atividades suinícolas no Corede Serra com vistas a gestão dos recursos hídricos. / The pig activity, as well as other livestock activities, is directly dependent on natural resources. The lack of knowledge about the impact on water resources in the cattle industry can jeopardize the growth of the sector, highlighting the need for methodologies to assess the performance of the same. In this context, the water footprint comes as a comprehensive indicator of water use that evaluates what is the consumption used, directly or indirectly, to produce a particular product throughout the supply chain. Thus, this study aimed to evaluate the water footprint in the development of pig activity in the Corede Serra region, in the state of Rio Grande do Sul, considering the pigs slaughtered in the year 2014. The calculation of the water footprint was applied to the production process of corn and soybeans, aimed at feeding the pigs (green water footprint) and the confinement process, which were considered the volumes of water for animal watering, cleaning the areas of creation and incorporation into the animal (blue water footprint) and the volume of water needed to dilute the phosphorus load of bleach from the application of manure fertilizer and finds the water (gray water footprint). The green water footprint is the most significant (59.35%), followed by the gray water footprint (40.44%) and the blue water footprint (0.21%). It is observed that the highest water consumption is in the production of corn and soybean crops, which are the staple diet of the animals and not in the water associated with the confinement process. Reducing the green water footprint is necessary to increase the productivity of corn and soybeans, through investments in technologies and zoning, associated with programs and policies aimed at increasing crop productivity. Investing in more efficient models drinking fountains, giving an adequate volume of water and meet the phase of breeding, presents itself as a low-cost option for saving water and consequent reduction of the blue water footprint. The gray water footprint can be reduced through the use of more efficient technologies for processing of manure, so that phosphorus is removed or reduced to low levels before being applied to the soil. By applying the methodology of water footprint in a reference unit consisting of thirty-one municipalities, it was observed that the level of detail of the information required to obtain a result consistent with the actual situation, it is a real challenge. The results from this work will be used in the planning of pig activities in COREDE Serra with a view to managing water resources.

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