No description available.

Como bien sabemos, la humanidad no se ha independizado de la naturaleza; esto quiere decir que hemos hecho y seguiremos haciendo uso de los recursos que ella nos brinda, en el presente proyecto, nos enfocamos en el agua, un insumo tan necesario para la vida humana y las diversas actividades que realiza. Es por ello, muy importante tener cifras exactas, de qué tanto estamos usando de este recurso, para así tener una transparencia en todos los sectores y tomar propuestas íntegras en post de una sociedad mejor. En este informe académico se buscó evaluar cuánta agua es necesaria para que un grupo de personas realicen sus actividades, y el nivel de contaminación que generaron durante el año 2019, exactamente dentro de cuatro instituciones educativas ubicadas en la región Lambayeque, esto es lo que se conoce como huella hídrica (HH). Se busca que por cada centro de enseñanza se evalúe el consumo directo e indirecto del recurso hídrico, expresando los resultados en volúmenes de agua. En este proyecto se explica la metodología a usar, propuesta por la WFN. Se tuvo que ir hasta los lugares en cuestión, recopilar datos de primera mano, fórmulas propuestas en la literatura inglesa, así como datos de instituciones y organismos serios. Además, este trabajo es un proyecto innovador por lo que se exhorta a investigar más acerca de este tema que intenta explicar el gran problema hídrico, ya que en este mundo globalizado resulta ser, la HH, un instrumento importante de medición para lograr tener sociedades sostenibles. / As we well know, humanity has not become independent from nature; This means that we have made and will continue to make use of the resources that it provides us. In this project, we focus on water, an input that is so necessary for human life and the various activities that it carries out. That is why it is very important to have exact figures, of how much we are using this resource, in order to have transparency in all sectors and take full proposals in post for a better society. This academic report seeks to assess how much water is necessary for a group of people to carry out their activities, and the level of pollution they generate during the year 2019, exactly within four educational institutions located in the Lambayeque region, this is what is known as the water footprint (WF). The aim is for each school to evaluate the direct and indirect consumption of water resources, expressing the results in volumes of water. This project explains the methodology to be used, proposed by the WFN. It was necessary to go to the places in question, collect first-hand data, formulas proposed in the English literature, as well as data from serious institutions and organizations. In addition, this work is an innovative project, so it is encouraged to investigate more about this topic that tries to explain the great water problem, since in this globalized world it turns out to be, the HH, an important instrument of measurement to achieve sustainable societies.

Washington D.C. has been ranked third among U.S. cities in terms of its percentage of youth who have reported a severe major depressive episode. Depression, stress, anxiety are the uninvited visitors of our day-to-day urban living. Most of the time we ignore our mental health unless we reach the threshold. We know nature is the best healer. The District also has reported the highest percentage of parkland but this statistic is not helping regarding Healing and Wellness. There might be a missing piece of the puzzle to reconnect with nature. To dive deep into the missing piece, I have looked back to the basics, into the four elements of the planet, Earth, Water, Air, and Fire. This thesis is an exploration of the most important natural element, Water, along with the other three elements, as active participants in our everyday urban life, not only as a means of reconnecting with nature but also aiding with natural healing to our depressed, tired soul. As with many other older cities, Washington D.C. mostly depends on the combined storm and sanitary sewer. During heavy rainfall, stormwater overflows the capacity of the sewage system and empties into the river with sewage. But there is an opportunity for the stormwater to be treated and reused at the site. Rainwater along with tapped groundwater as the perennial flow will be considered as the source of healing water in the dense downtown context of the District. The thesis will tell the story of the arrival of Water into the middle of the city. Water will be examined in all its forms and integrated with the Third Place, where the young working generation can come in the middle of the working day to catch a lunch break or after office rush hour to relax their stressed nerves and heal their inner soul. This design for a community learning center at First Street NE in NoMA neighborhood, Washington D.C. is an effort to trace the path of the long-lost Tiber Creek and to provide the inhabitants with a for Water and growth. / Master of Architecture / Washington D.C. has been ranked third among U.S. cities in terms of its percentage of youth who have reported a severe major depressive episode. Depression, stress, anxiety are the uninvited visitors of our day-to-day city life. Most of the time we ignore our mental health unless we reach the threshold. We know nature is the best healer. The District also has reported the highest percentage of the green area but maybe only the "Green" is not enough for healing. To dive deep into the missing piece of the puzzle, I have walked back to the basics, looking into the four elements of the planet, Earth, Water, Air, and Fire. This thesis is an exploration of the most important natural element, Water, along with the other three elements, in architecture and urban design, not only as a means of reconnecting with nature but also aiding with natural healing to our depressed, tired soul. As with many other older cities, Washington D.C. mostly depends on the combined storm and sanitary sewer. During heavy rainfall, stormwater overflows the capacity of the sewage system and empties into the river with sewage. In this research, rainwater is considered as the source of healing water in the dense downtown context of the District. This thesis also examined tapping groundwater and bring it to the city street level. The thesis will tell the story of the arrival of Water into the middle of the city. This design for a community learning center at First Street NE in NoMA neighborhood, Washington D.C. is an effort to trace the path of the long-lost Tiber Creek and to provide the inhabitants with a place for Water and growth.

L’eau a longtemps été considérée comme une ressource commune non susceptible d’appropriation et accessible à tous. De nos jours, toutefois, face à l’inégale répartition de l’eau sur la planète, à l’augmentation constante de la population et à la multiplication des usages qui entraînent la surexploitation et la pollution des ressources hydriques, l’eau prend une valeur nouvelle. L’eau devient de plus en plus un enjeu stratégique, politique et commercial. En conséquence, la redéfinition du statut juridique de l’eau devient un objet de débat important. Ce débat est avant tout un débat rhétorique et une « bataille » idéologique entre des groupes qui soutiennent différentes approches et qui cherchent à obtenir le monopole de la nouvelle réalité et créer ainsi le nouveau droit. Deux grandes approches s’affrontent pour redéfinir la ressource. La première, celle qui envisage l’eau comme un bien économique, soutient que pour éviter les problèmes de gaspillage et de pollution, l’eau doit être soumise aux lois de l’offre et de la demande. La deuxième, celle qui considère l’eau comme une chose commune, non appropriable et hors commerce, soutient que la valeur d’une ressource aussi vitale que l’eau ne peut être établie par les lois du marché puisque cette alternative ne permet pas d’assurer l’accès à l’eau aux plus démunis de la société. Cette approche prône également la reconnaissance d’un droit humain à l’eau. Notre thèse tente de déterminer comment s’effectue le choix du statut juridique de l’eau, et ce, tant au Québec qu’au Mexique. Notre question de recherche est traitée selon une perspective constructiviste en vertu de laquelle le statut juridique de l’eau serait une réalité « construite » et le nouveau droit serait le résultat des luttes, des oppositions et des compromis entre les acteurs sociaux impliqués. Notre terrain d’étude est le Québec et le Mexique. En effet, ce sont des territoires intégrés économiquement par le biais de l’ALENA où l’on observe des variations importantes en termes de ressources, de prélèvements et de consommation. Au Québec, nous analysons le débat qui a eu lieu lors de la Consultation sur la gestion de l’eau au Québec (1999), notamment les discours concernant le statut de l’eau, la gestion publique/privée des services d’eau et l’exportation en vrac de la ressource. Au Mexique, nous analysons les représentations des acteurs sociaux à l’occasion de l’adoption de la Loi des eaux nationales de 1992, notamment les questions qui comportent un lien étroit avec la symbolique de l’eau. Or, nous avons remarqué que le résultat de ces constructions sociales au sein de ces territoires est complètement différent. Au Québec, on a confirmé le statut de l’eau en tant que chose commune, tandis qu’au Mexique, c’est plutôt la symbolique de l’eau en tant que bien économique qui a été adoptée dans la nouvelle législation portant sur l’eau. / Water has been considered for a long time as a common good not susceptible to appropriation and accessible to all. Nowadays, however, in front of the uneven distribution of water on the planet, the constant increase of the population and the increase of water uses which pulls the overexploitation and the pollution of water resources, water takes a new value. Indeed, it becomes more and more a strategic, political and commercial issue. Consequently, the redefining of legal status of water becomes an important object of debate. This is above all a rhetoric debate and an ideological "battle" between groups who support different approaches. Indeed, these ideologies are the fruit of different speeches conceived by social actors who have contrary interests and ideologies and that aim at having the monopoly of the new reality and creating the new law. There are two important approaches which are in confrontation. The first one, conceive water as an economic good, and considers that to avoid problems of wasting and pollution, water must be subjected to the laws of supply and demand. The second conceive water as a common good and supports that the value of a resource so vital as water cannot be established by the laws of the market, because this alternative does not allow to assure access to water to the most deprived of the society. This approach advocates the recognition of water as a human right. Our thesis aims at finding how the choice of the legal status of water is made in Quebec and in Mexico. This question will be treated according to a constructivist perspective according to which the legal status of water would be a "constructed" reality and, thus, the new law would be the result of fights, oppositions and also, compromises between the involved social actors. Our analysis covers Quebec and Mexico. In fact, those are territories economically integrated by NAFTA where we observe important variations in terms of resources, uses and consumption of water. In Quebec, we analyze the representations of different actors during the Consultation on Water Management held in 1999, and more particularly the speeches concerning the status of water, the privatization of water services and the bulk water exports. In Mexico, we analyze the representations of social actors surrounding the adoption of the National Water Law of 1992, and more particularly the questions concerning the symbolism of water. Now, we found that the result of these constructions within these territories is completely different. In Quebec, the status of water as a common good has been confirmed, whereas in Mexico, it is rather the symbolism of water as an economic good which was adopted in the new Mexican legislation. / El agua ha sido considerada por mucho tiempo como un bien común inapropiable y de libre acceso. No obstante, frente al aumento constante de la población, a la multiplicación de los diversos usos que provocan la sobreexplotación y a la contaminación de los recursos hídricos, el agua retoma un valor nuevo. Ésta es considerada cada vez más como un recurso estratégico, político y comercial. El tema de la redefinición del estatus jurídico del agua o su calificación jurídica es cada vez más importante en los debates que conciernen al manejo del agua. Al respecto, hay dos grandes enfoques que se enfrentan: el primero considera el agua como un bien económico y sostiene que para evitar los problemas de despilfarro y de contaminación, el agua debe estar sometida a las leyes de la oferta y la demanda. El segundo considera el agua como un bien común, inapropiable y fuera de comercio, este enfoque sostiene que el valor de un recurso tan vital como el agua, no puede ser establecido por las leyes del mercado ya que esta alternativa no permite asegurar el acceso al agua a los menos favorecidos de la sociedad. Este enfoque también preconiza el reconocimiento de un derecho humano al agua. Nuestra tesis pretende identificar cómo se efectúa la elección del estatus jurídico del agua, tanto en Québec como en México. Nuestra investigación tomara una perspectiva constructivista en virtud de la cual consideramos que la calificación jurídica del agua es una realidad "construida". El nuevo derecho corresponderá a las luchas, oposiciones y compromisos entre los actores sociales implicados. Tomamos como campo de investigación Québec (Canada) y México, territorios integrados económicamente por el Tratado de Libre Comercio de América del Norte (TLCAN) donde se observa variaciones importantes en términos de recursos, de usos y de consumos. En Quebec, analizamos las representaciones de los actores sociales que participaron a la consulta pública sobre la gestión del agua que tuvo lugar en (1999), más particularmente los discursos que hacen referencia a la calificación jurídica del agua, al manejo público o privado de los servicios de agua y a la exportación del recurso a grande escala. En México, analizamos los discursos de los actores sociales que hubieran podido tener alguna incidencia en el contenido de la Ley de aguas nacionales de 1992. Observaremos que el resultado de estas construcciones sociales, al interior de estos Estados es completamente diferente: en Québec, se confirmará que el agua es un bien común, mientras que en México la Ley de aguas nacionales hace de ella un bien económico.

L’eau a longtemps été considérée comme une ressource commune non susceptible d’appropriation et accessible à tous. De nos jours, toutefois, face à l’inégale répartition de l’eau sur la planète, à l’augmentation constante de la population et à la multiplication des usages qui entraînent la surexploitation et la pollution des ressources hydriques, l’eau prend une valeur nouvelle. L’eau devient de plus en plus un enjeu stratégique, politique et commercial. En conséquence, la redéfinition du statut juridique de l’eau devient un objet de débat important. Ce débat est avant tout un débat rhétorique et une « bataille » idéologique entre des groupes qui soutiennent différentes approches et qui cherchent à obtenir le monopole de la nouvelle réalité et créer ainsi le nouveau droit. Deux grandes approches s’affrontent pour redéfinir la ressource. La première, celle qui envisage l’eau comme un bien économique, soutient que pour éviter les problèmes de gaspillage et de pollution, l’eau doit être soumise aux lois de l’offre et de la demande. La deuxième, celle qui considère l’eau comme une chose commune, non appropriable et hors commerce, soutient que la valeur d’une ressource aussi vitale que l’eau ne peut être établie par les lois du marché puisque cette alternative ne permet pas d’assurer l’accès à l’eau aux plus démunis de la société. Cette approche prône également la reconnaissance d’un droit humain à l’eau. Notre thèse tente de déterminer comment s’effectue le choix du statut juridique de l’eau, et ce, tant au Québec qu’au Mexique. Notre question de recherche est traitée selon une perspective constructiviste en vertu de laquelle le statut juridique de l’eau serait une réalité « construite » et le nouveau droit serait le résultat des luttes, des oppositions et des compromis entre les acteurs sociaux impliqués. Notre terrain d’étude est le Québec et le Mexique. En effet, ce sont des territoires intégrés économiquement par le biais de l’ALENA où l’on observe des variations importantes en termes de ressources, de prélèvements et de consommation. Au Québec, nous analysons le débat qui a eu lieu lors de la Consultation sur la gestion de l’eau au Québec (1999), notamment les discours concernant le statut de l’eau, la gestion publique/privée des services d’eau et l’exportation en vrac de la ressource. Au Mexique, nous analysons les représentations des acteurs sociaux à l’occasion de l’adoption de la Loi des eaux nationales de 1992, notamment les questions qui comportent un lien étroit avec la symbolique de l’eau. Or, nous avons remarqué que le résultat de ces constructions sociales au sein de ces territoires est complètement différent. Au Québec, on a confirmé le statut de l’eau en tant que chose commune, tandis qu’au Mexique, c’est plutôt la symbolique de l’eau en tant que bien économique qui a été adoptée dans la nouvelle législation portant sur l’eau. / Water has been considered for a long time as a common good not susceptible to appropriation and accessible to all. Nowadays, however, in front of the uneven distribution of water on the planet, the constant increase of the population and the increase of water uses which pulls the overexploitation and the pollution of water resources, water takes a new value. Indeed, it becomes more and more a strategic, political and commercial issue. Consequently, the redefining of legal status of water becomes an important object of debate. This is above all a rhetoric debate and an ideological "battle" between groups who support different approaches. Indeed, these ideologies are the fruit of different speeches conceived by social actors who have contrary interests and ideologies and that aim at having the monopoly of the new reality and creating the new law. There are two important approaches which are in confrontation. The first one, conceive water as an economic good, and considers that to avoid problems of wasting and pollution, water must be subjected to the laws of supply and demand. The second conceive water as a common good and supports that the value of a resource so vital as water cannot be established by the laws of the market, because this alternative does not allow to assure access to water to the most deprived of the society. This approach advocates the recognition of water as a human right. Our thesis aims at finding how the choice of the legal status of water is made in Quebec and in Mexico. This question will be treated according to a constructivist perspective according to which the legal status of water would be a "constructed" reality and, thus, the new law would be the result of fights, oppositions and also, compromises between the involved social actors. Our analysis covers Quebec and Mexico. In fact, those are territories economically integrated by NAFTA where we observe important variations in terms of resources, uses and consumption of water. In Quebec, we analyze the representations of different actors during the Consultation on Water Management held in 1999, and more particularly the speeches concerning the status of water, the privatization of water services and the bulk water exports. In Mexico, we analyze the representations of social actors surrounding the adoption of the National Water Law of 1992, and more particularly the questions concerning the symbolism of water. Now, we found that the result of these constructions within these territories is completely different. In Quebec, the status of water as a common good has been confirmed, whereas in Mexico, it is rather the symbolism of water as an economic good which was adopted in the new Mexican legislation. / El agua ha sido considerada por mucho tiempo como un bien común inapropiable y de libre acceso. No obstante, frente al aumento constante de la población, a la multiplicación de los diversos usos que provocan la sobreexplotación y a la contaminación de los recursos hídricos, el agua retoma un valor nuevo. Ésta es considerada cada vez más como un recurso estratégico, político y comercial. El tema de la redefinición del estatus jurídico del agua o su calificación jurídica es cada vez más importante en los debates que conciernen al manejo del agua. Al respecto, hay dos grandes enfoques que se enfrentan: el primero considera el agua como un bien económico y sostiene que para evitar los problemas de despilfarro y de contaminación, el agua debe estar sometida a las leyes de la oferta y la demanda. El segundo considera el agua como un bien común, inapropiable y fuera de comercio, este enfoque sostiene que el valor de un recurso tan vital como el agua, no puede ser establecido por las leyes del mercado ya que esta alternativa no permite asegurar el acceso al agua a los menos favorecidos de la sociedad. Este enfoque también preconiza el reconocimiento de un derecho humano al agua. Nuestra tesis pretende identificar cómo se efectúa la elección del estatus jurídico del agua, tanto en Québec como en México. Nuestra investigación tomara una perspectiva constructivista en virtud de la cual consideramos que la calificación jurídica del agua es una realidad "construida". El nuevo derecho corresponderá a las luchas, oposiciones y compromisos entre los actores sociales implicados. Tomamos como campo de investigación Québec (Canada) y México, territorios integrados económicamente por el Tratado de Libre Comercio de América del Norte (TLCAN) donde se observa variaciones importantes en términos de recursos, de usos y de consumos. En Quebec, analizamos las representaciones de los actores sociales que participaron a la consulta pública sobre la gestión del agua que tuvo lugar en (1999), más particularmente los discursos que hacen referencia a la calificación jurídica del agua, al manejo público o privado de los servicios de agua y a la exportación del recurso a grande escala. En México, analizamos los discursos de los actores sociales que hubieran podido tener alguna incidencia en el contenido de la Ley de aguas nacionales de 1992. Observaremos que el resultado de estas construcciones sociales, al interior de estos Estados es completamente diferente: en Québec, se confirmará que el agua es un bien común, mientras que en México la Ley de aguas nacionales hace de ella un bien económico.

In recent publications it is questioned whether the existing wastewater management system is suitable for future requirements. The today’s wastewater infrastructure is a complex socio-technical system characterized by centralization, very long life-spans and sunk costs. Thus, it appears questionable whether this system is suitable against the background of a context of dynamic conditions as demographic change, climate change and the emerging requirements in terms of sustainability. This paper adds a contribution to the growing body of literature on prospective waste water management systems. Focusing on long term developments this paper aims to build up scenario-modules towards the year 2050. Our approach combines three methodologies which appear to be suitable with each other, namely the method of explorative scenario development, a modified Delphi method and content analysis. As the waste water sector is a very complex system with various impact factors which are characterized by high dynamics and strong uncertainty the scenario technique appears as an appropriate method. Within the scenario building process a modified Delphi method had been applied to generate the input for the scenario-modules. Key drivers and uncertainties in the field of waste water management were identified by interviewing 16 experts who are scientists or practitioners in the waste water sector. The interviews had been transliterated and then evaluated by using the content analysis approach. Afterwards scenario-modules were derived which provide a basis for further procedure towards complete scenarios for future wastewater infrastructure.

Thesis (MScEng (Civil Engineering))- -University of Stellenbosch, 2011 / ENGLISH ABSTRACT: The limited water supply and an increasing water demand means that the effective management of water resources becomes much more important than in the past. The implementation of water demand management / water conservation (WDM/WC) projects are usually used as a crisis management tool to reduce immediate water shortage and to allow time for the planning and construction of infrastructure to increase water supply. It is however possible to incorporate WDM/WC into integrated water resource management and to use WDM/WC as an economic viable option for the upgrade of infrastructure to balance supply and demand. Existing economic evaluation methods to compare different options with each other were used to evaluate WDM/WC measures. Literature showed that to perform an economic evaluation of WDM/WC measures, the costs associated with the implementation of the WDM/WC measures, as well as the expected water saving from the implementation of the WDM/WC measure, must be known. Models were developed to estimate the expected water savings from different WDM/WC measures. The economic impacts of specific WDM/WC measures were investigated by using these models. Different economic models were developed to perform an economic evaluation of WDM/WC measures. WDM/WC measures were evaluated in terms of its economic feasibility. Economical evaluations of WDM/WC measures were also done as an alternative to the upgrading of infrastructure. In the last evaluation, the financing of WDM/WC measures through the deferral of capital cost, was investigated. Case studies from literature, where costs as well as water savings were available, were used to evaluate these WDM/WC measures by using the developed economic models. Cost estimates for the upgrading of infrastructure, to supply an equal amount of water as the water saving achieved in each case study, were done. These estimates were used to compare WDM/WC measure with the upgrading of infrastructure. / AFRIKAANSE OPSOMMING: Daar word al hoe meer druk op bestaande hulpbronne geplaas om voldoende water te lewer. Die fokus skuif na effektiewe bestuur van hierdie hulpbronne. Wateraanvraagbestuur/ Waterbewaring (WAB/WB) projekte word geïmplementeer om krisisse van water tekorte aan te spreek en tyd te wen om nuwe hulpbronne te ontwikkel. Dit is wel moontlik om WAB/WB in geïntegreerde waterbron bestuur in te sluit en WAB/WB as ʼn ekonomiese alternatief tot kapitale investering aan te wend. Om die ekonomiese aspekte van WAB/WB te ondersoek, is daar op bestaande ekonomiese evaluerings metodes gefokus om verskillende opsies met mekaar te vergelyk. Uit die literatuur is gevind dat die belangrikste aspekte vir die ontleding van WAB/WB alternatiewe i.t.v. hul ekonomiese waarde, die koste van implementering van die WAB/WB alternatief is en die waterbesparing wat deur die implementering van die WAB/WB alternatief verkry word. WAB/WB modelle is ontwikkel om die verwagte water besparing van bepaalde WAB/WB alternatiewe te beraam. Die moontlike ekonomiese impak van bepaalde WAB/WB alternatiewe is deur die gebruik van hierdie modelle ondersoek. Ekonomiese evaluerings modelle is opgestel om WAB/WB alternatiewe te ontleed. WAB/WB alternatiewe kan as ʼn ekonomiese haalbare projek geïmplementeer word waar die kostes van die waterbesparings meer as die kapitale koste van die projek is. WAB/WB alternatiewe kan ook meer ekonomies as die ontwikkeling van nuwe bronne of opgradering van ʼn bestaande netwerk wees. Laastens is die moontlikheid om WAB/WB as ʼn alternatief te finansier deur die besparing wat bereik kan word deur ʼn kapitale projek uit te stel, ondersoek. Gevalle studies uit die literatuur, waar die kostes en waterbesparings bekend is, is ontleed deur van hierdie ekonomiese evaluerings modelle gebruik te maak. Vir elk van die gevalle studies is ʼn koste vir die opgradering van die infrastruktuur beraam om die ekwivalente hoeveelheid water te voorsien as wat deur die WAB/WB alternatief bespaar is.

Thesis (MScConEcol (Conservation Ecology and Entomology))--University of Stellenbosch, 2011. / ENGLISH ABSTRACT: Invasive alien plants (IAPs) reduce streamflow and threaten the biodiversity of South Africa’s Cape Floristic Region. Up-to-date information on invasive vegetation is required for land management agencies to formulate policies and make appropriate resource management decisions. Invasion maps are typically not updated often enough because of the time and expenses required to do so. As a result, invasion maps for South Africa are limited to coarse resolution data or isolated small scale studies. Invasive alien plants change the landscape by destabilizing catchments and thereby increasing soil erosion, altering fire regimes and hydrology, as well as changing the physical and chemical composition of the soil. Information on IAPs is needed at a landscape scale. Remote sensing is a powerful tool that can be used to characterise landscapes in a biologically meaningful manner. The Normalised Difference Vegetation Index (NDVI) was used to create an up-to-date invasion map of the Agulhas Plain, lying at the heart of the species rich Cape Floristic Region. This information was combined with actual evapotranspiration data from the Surface Energy Balance Algorithm for Land (SEBAL) study done by Water Watch and the Council for Scientific and Industrial Research. The results showed that invasive vegetation uses more water than natural fynbos vegetation and that the greatest amount of water would be made available by clearing the invaded deep sands on the Agulhas Plain. These deep sand areas conflict with the priority areas of the Working for Water programme. This IAP eradication programme targets sparsely invaded upland areas for long-term sustainability. The recommendation of this study is to clear invaded wetland and riparian areas as these zones yield the greatest hydrological benefit per hectare and meet the priorities of Working for Water. Overall, 36 million cubic meters of water would be made available by clearing the Agulhas Plain. It can be concluded that there is a significant hydrological benefit to clearing invasive alien vegetation on the Agulhas Plain. / AFRIKAANSE OPSOMMING: Indringerplante (IP) verminder stroomvloei en bedreig die biodiversiteit van Suid-Afrika se Kaapse Floristiese Streek. Die nuutste inligting oor uitheemse plantegroei is nodig vir grondbestuuragentskappe om beleide te formuleer vir die neem van toepaslike hulpbronbestuur besluite. As gevolg van die tyd en uitgawes wat nodig is om indringingskaarte op te dateer, word dit gewoonlik nie dikwels genoeg gedoen nie. Dus is indringingskaarte vir Suid-Afrika beperk tot growwe resolusie data of geïsoleerde kleinskaal studies. Indringerplante verander die landskap deur opvangsgebiede te destabiliseer en sodoende te lei tot gronderosie, verandering van vuurregimes en hidrologie, sowel as die verandering in die fisiese en chemiese samestelling van die grond. Inligting oor IP is nodig op 'n landskapskaal. Afstandswaarneming is 'n kragtige tegniek wat gebruik kan word om landskappe op 'n biologies betekenisvolle manier te karakteriseer. Die Normalised Difference plantegroei-indeks (NDVI) is gebruik om 'n opgedateerde indringingskaart van die Agulhas-vlakte, wat in die hart van die spesiesryke Kaapse Floristiese Streek lê, te skep. Hierdie inligting is gekombineer met die werklike evapotranspirasie data vanaf die Surface Energy Balance Algorithm for Land (SEBAL) studie gedoen deur Water Watch en die Raad vir Wetenskaplike en Nywerheidnavorsing. Die resultate het getoon dat uitheemse plantegroei meer water gebruik as natuurlike fynbosplantegroei en dat die grootste hoeveelheid van hierdie water beskikbaar gestel sal word deur IP op diepsand op die Agulhas-vlakte skoonte maak. Hierdie diepsand areas is in konflik met die prioriteitsgebiede van die Werk vir Water-program. Hierdie IP uitroeiingsprogram fokus op yl ingedringde berggebiede vir langtermyn volhoubaarheid. Die aanbeveling van hierdie studie is om duidelik ingedringde vleilande en oewergebiede skoon te maak, siende dat hierdie sones die hoogste opbrengs en die grootste hidrologiese voordeel per hektaar bied, en voldoen aan die prioriteite van Werk vir Water. In totaal sou 36 miljoen kubieke meter water beskikbaar gestel word deur die skoonmaak van die Agulhas-vlakte. Dus kan dit afgelei word dat die verwydering van hidrologiese indringerplante op die Agulhas-vlakte 'n beduidende voordeel sal inhou.

<p>Management of water bodies according to their river basinsis becoming increasingly common, as the concept of IntegratedWater Resources Management (IWRM) is getting more and moreacknowl-edged. In Europe, a large portion of these“new”management units will probably be internationalor transboundary. Decisions and policies consideringtransboundary water issues need to be based on reliable andcomprehendible information. In this thesis, a review of variousexisting models that may be used for understanding the role anduse of information in (transboundary) water management ispresented. Further, the thesis reports on an assessment of theinformation management of three transboundary water regimes inEurope, namely the international water commissions for LakeNeusiedl, Lake Constance and Elbe River. Besides examining theinformation management of the regimes as such, the managementwas also related to information needs implied by the IWRMcon-cept and by the EU Water Framework Directive (WFD). Thereviewed models and approaches were grouped into threecategories: information management models, information cyclemodels and communication between actors. The first categorycomprised models that may be used for managing and assessingdifferent types of information. The second group dealt withmodels explaining the production and communication ofinformation predominately from an information producer/senderperspective. The third group focused on ideas concerninginteractions and communication of information between differentkinds of actors. The studies on information management intransboundary water regimes showed that the information needsand strategies often were defined primarily with watercommissions’own needs in mind. The data collected by thecommissions were predominated by monitoring data, describingthe status of the environment and the impact caused by humanactivities. Furthermore, any communication of information toother groups of actors was mainly done through passivechannels. The information management in these transboundarywater regimes was not fully in accordance with informationneeds implied by the IWRM concept and the EU WFD.</p><p><b>Keywords:</b>Integrated Water Resources Management (IWRM);transboundary water management; information; EU Water FrameworkDirective (WFD); regimes; policy and decision making; LakeNeusiedl; Lake Constance; Elbe River.</p>

Storm water quality can have a significant impact on receiving water bodies. The chief recipients of these impacts are aquatic life in the receiving water body and downstream water users. Over the last few decades, legislation, regulations, institutions and facilities have evolved to recognize the impact of urban storm water on receiving streams. This increased emphasis has caused contaminants in storm water to be identified as a major concern. This developing concern has generated an increased interest in the water quality of our streams and lakes and emphasized the need for more monitoring efforts. With the passage of the National Pollutant Discharge Elimination System (NPDES) Phase II requirements, small municipalities are responsible for storm water impacts on receiving waters within their jurisdiction. For the purposes of NPDES Phase II requirements, small municipalities are identified as these municipalities that are typically composed of 10,000 but less than 100,000 in population. The purpose of this dissertation is to develop a manual for use by the staff of small municipalities in meeting the requirements prescribed by changes initiated in the NPDES Phase II regulations. Attempts were made to comply with these requirements within a very limited manpower and budget framework and to develop procedures that would allow for permit compliance using testing equipment that was both reliable and robust. The users' manual provides valuable guidance in the establishment of a knowledge base for characterization of the watersheds selected for study. Chapter 3 of the dissertation contains a users' manual, designed for use by municipal staff members in their efforts to comply with the NPDES Phase II requirements. Using the techniques and equipment capabilities developed during the writing of the users' manual a characterization of three watersheds within Denton County, Texas was developed. Non-storm water samples were taken from each of the streams and a baseline analysis was established. The three watersheds represented agricultural, suburban and urban settings. Storm water samples were obtained from multiple storms within all three watersheds and data analysis used to determine the character and impact of urban runoff. Determination of the constituents for analysis was based on monitoring requirements of the NPDES Phase I and II requirements for owners and operators of municipal separate storm sewer systems (MS4) and on the Texas Pollutant Discharge Elimination System (TPDES) Multi-Sector General Permit (MSGP). The three watersheds were determined to have multiple statistically significant differences for some parameters between their Base Flows and Storm Flows. The impact of urban runoff on the receiving waters of these three drainage systems was clearly demonstrated throughout the testing period.