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 16 of 16 for “"river health"”.
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Searching for the ideal river? New directions in geographical geomorphology
… production in fluvial geomorphology and river management. Drawing on case studies from western China and Aotearoa New Zealand, the thesis demonstrates how the contemporary practice of geomorphology and river management are entangled with normative understandings of an ideal river. It …
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The dynamics and resilience of river cities as coupled human-natural systems
Around the world many river cities are challenged simultaneously by heightened flood risk and degraded river health. The prevailing approach to flood hazard mitigation--flood control, has been criticized to be ineffective for long-term flood safety. Flood control is also well-understood to be …
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Analyzing longitudinal patterns of river metabolism in five distinct rivers
The River Continuum and Serial Discontinuity Concepts are two common frameworks or theories to describe river ecosystem structure and function. While these concepts help explain how rivers should behave, the reality is that aquatic ecosystems are being changed and degraded due to dams which …
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A bio-indicator assessment towards the rehabilitation of the Stiebeuel River, Franschhoek, South Africa
… and urban informal settlements are degrading rivers and causing a decline in habitat integrity and the delivery of ecosystem services. There is a need to implement river restoration programmes to alleviate the negative impacts on stream ecosystems. This study aimed to determine the ability of …
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Impact of Stream Restoration on Flood Attenuation and Channel-Floodplain Exchange During Small Recurrence Interval Storms
… nutrient pollution have been detrimental to river health under increased environmental stress from human activities (e.g., agriculture, urbanization). Riverine flooding can be detrimental to human life and infrastructure yet provides important habitat and ecosystem services. Traditional flood …
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Lyme Disease and Forest Fragmentation in the Peridomestic Environment
… cases per year, with 200 annually in the New River Health District (NRHD), the location of our study. Efforts to geographically model Lyme disease primarily focus on landscape and climatic variables. The disease depends highly on the survival of the tick vector, and white-footed mouse, the …
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Demand for Water Quality: Empirical Evidence from a Knowledge, Attitude, Behavior, and Choice Experiment Survey about the Bagmati River in Kathmandu, Nepal
Surface water ecosystems such as rivers and lakes provide many benefits to the society. These benefits include both market goods such as drinking water, outdoor recreation, fisheries, as well as non market goods such as habitats for aquatic life, biodiversity, aesthetic attributes, and religious …
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Human impacts on ecosystems in the Chibefwe river catchment area in Mkushi district, Zambia
… impacts of anthropogenic land use activities on river health conditions using aquatic macroinvertebrates as indicators of water quality in the Chibefwe River Catchment area in Mkushi district, Central Province, Zambia. Three study sites were selected on the Chibefwe River: One near the source of …
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Human impacts on ecosystems in the Chibefwe river catchment area in Mkushi district, Zambia
… impacts of anthropogenic land use activities on river health conditions using aquatic macroinvertebrates as indicators of water quality in the Chibefwe River Catchment area in Mkushi district, Central Province, Zambia. Three study sites were selected on the Chibefwe River: One near the source of …
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Programme vision: Styx River catchment monitoring manual
In the past the Styx River catchment consisted largely of raupo/flax wetlands, grassland areas and coastal sand dunes. A diverse range of native fish and bird species, which had high cultural values and associations to the Tangata Whenua, supported the vegetation. However, by the early 1860s, after …
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Assessment of Potential Temporal Impacts of “Land use Activities on Water Quality of the Luvuvhu River “Catchment, South Africa
River health is crucial to benefit from the full resource potential of surface water bodies. This benefit becomes compromised when there’s high water quality degradation in the system. Considering the South African context, the use of untreated river water for domestic uses such as laundry, …
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River temperature behaviour in changing environments: trends, patterns at different spatial and temporal scales and role as a stressor
River/stream water temperature is one of the master water quality parameters as it controls several key iogeochemical, physical and ecological processes and river ecosystem functioning. Thermal regimes of several rivers have been substantially altered by climate change and other anthropogenic …
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Water sourcing by riparian tree species in ephemaral rivers
In arid southern Africa, many rivers are ephemeral, and surface flow occurs for less than 10% of the year. Floods, which occur erratically, recharge groundwater resources on which riverine vegetation depends. Trees and shrubs are the most common life forms along these river systems, because surface …
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The inorganic pollution of the Franschhoek River : sources and solutions
… inorganic chemical pollution of the Franschhoek River and draw relationships between contaminants in water, sediment and plants. The invasive Acacia mearnsii and Salix babylonica and indigenous Brabejum stellatifolium species were chosen as biomonitors due to their wide spread distribution along …
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LiDAR Assessment of Sediment Transport Related to the Removal of the Marmot Dam, Sandy River, Oregon
… the 2007 removal of the Marmot Dam on the Sandy River, Oregon. Geomorphic Change Detection software was used to answer three project goals: 1) to investigate how the dam removal affected sediment distribution in the lower reach of the river, several km downstream of the dam, 2) to determine …
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Rivers, ecological health, and justice: international watercourses and long-term legal reform
This dissertation deals with rivers that cross national boundaries and with the international law that applies to them. It takes a critical look at that law, drawing upon normative standards that value justice among all people, without regard for where they live along rivers or for the negotiating …