Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Urban Rivers"”.
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Environmentally-sensitive river management : assessment and mitigation of impacts on urban rivers
Urban development and engineering works have resulted in the majority of rivers that drain urban areas being severely degraded, both ecologically and in terms of their potential amenity value. This dissertation explores the reasons for this "spiral of degradation" and it describes the ecological …
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Determining key catchments for litter trap installation in urban rivers using a GIS-based approach
Litter generated in urban centres has fast become a major problem across the world and poses risks to economic, human and environmental health. It is estimated that around 2.0 billion tonnes of solid waste are produced per year. Rivers and stormwater drainage systems are the primary mechanism …
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Public knowledge and stormwater quality in Cape Town, South Africa: a case study of the Liesbeek River
… factors to the deterioration of water quality in urban rivers. The problem is partly caused by the design of conventional stormwater infrastructure, which is intended to remove runoff as quickly and efficiently as possible. In many developing countries urban rivers are already highly degraded and …
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Lessons learned from urban river restoration projects: application of restoration treatments on the Los Angeles River.
<p>Human development has altered many rivers around the world. In the past, urban rivers were condemned as flood hazards, and load-reducing treatments were the only treatments applied to protect the surrounding communities against flooding. These treatments aim to collect precipitation from the …
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Trace metal accumulation in urban sediments, Black River, Western Cape, South Africa
The increase in urbanisation and the use of metal compounds and products domestically and in industry has resulted in the production of by-products and wastes, which needs to be evaluated in the urban environment. The discharge of some of these wastes into urban rivers should be evaluated to …
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At the Water's Edge: A Cultural Institute of the Charles River
Rivers have provided reason for development throughout history. As a result, many of today's major cities sit at the rivers edge. For those cities that span both sides of a river, treatment of the water's edge is very important to the perception of the river in the city. This type of urban river …
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Modeling the temperature response of small rivers to land cover changes using satellite-based spatial data
The influence of urbanization and land cover alteration on water quality, including river temperatures, has important ecological implications. However, there is a dearth of information on temperature of rivers smaller than about 60 m wide (approximately fifth order and below), which constitute …
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Landscape and memory : transformation of an urban river's edge
I grew up in Philadelphia. The waterfront and its urban character motivated my original focus combined with architectural interests in dealing with public spaces. The search began for a site which was a locus of intensity and contained elements of time, sense of place, the character of the city and …
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Integrating green and gray : lessons learned from ecological and engineering approaches to flood resilience around three U.S. rivers
… elements of both approaches, especially in urban settings. This paper reviews these approaches by comparing case studies around three U.S. urban rivers and understanding the ways ecological and engineering approaches have been integrated into flood resilience projects. Because of the …
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Effects of artificial light at night on benthic primary producers in freshwaters
… effects on aquatic primary producers in urban and sub-urban rivers and streams have hardly been addressed. This thesis aimed to investigate effects of artificial nocturnal illumination on biomass and community composition of communities of benthic primary producers in freshwaters, the …
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The Urban Oasis - [RE]-Generating Centurion Lake Through Resource Exchanges
… can be re-established, with the focus being on urban river systems. This dissertation critically examines Regenerative theory in conjunction with Phenomenology; with regenerative theory acting as the main driver to rejuvenate the site (and governing regenerative processes) and phenomenology …
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Straumvötn í þéttbýli. Staða Glerár og virði fyrir samfélagið á Akureyri.
Í þessari rannsókn var leitast við að meta virði straumvatns í þéttbýli út frá sjónarhorni umhverfis og samfélags. Rannsóknin beindist að Glerá sem rennur í gegnum þéttbýlið á Akureyri. Markmið rannsóknarinnar var tvíþætt; annars vegar að skoða landslagseinkenni og landnotkun meðfram Glerá og hins …
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The dynamics and resilience of river cities as coupled human-natural systems
… and by providing a theory for alternative urban flood hazard mitigation. This research is composed of three interrelated investigations that are presented as three independent chapters. The first chapter integrates disciplinary knowledge associated with flooding to provide an …
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Heavy metal contamination in the Black River, Cape Town
Urban river sediments are often contaminated as a result of development and anthropocentric activity, and the Black River in Cape Town is a prime example of a river system suffering from unsustainable development. Methods of deter mining total and background concentrations of selected heavy metals …