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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.
151

The prairie above: a regional investigation into the green roof technology and application

MacArthur, Shauna 26 April 2012 (has links)
Issues associated with urban development such as the urban heat island effect, loss of habitat, increased areas of impervious surfaces leading to storm water management concerns are well known. Many designers, engineers and policy creators are sensitive to these issues creating positive change by implementing alternatives to traditional development. Although, the concept of green roofs is not new to the prairies, modern development of this technology has not been fully embraced. Surrounded by concerns of efficacy and longevity here in the harsh northern prairie climate, green roof development and implementation has been slow. The objective of this practicum is to determine what green roof system and what vegetation of the short grass / fescue prairie and mix grass prairie would succeed in a green roof setting. Determining the appropriate planting palette and growth medium depth for the Canadian Prairies is essential for the development of the green roof industry locally.
152

Field works: explorations in the tall grass prairie landscape

Wreford, Liz 11 April 2007 (has links)
‘FIELD WORKS’ explores landscape experiences that were once common to the tall grass prairie region of Manitoba. The route through this project winds in and out of urban surfaces to reveal memories embedded in the land. It documents forgotten and dormant prairie events so that they might be woven back into the fabric of the city. The purpose of this project is to transfer explored and speculative experience into a physical route through the urban prairie landscape. It is an effort to expose the layers clinging to physical memories rooted in the prairie.
153

Water quality assessment of Prairie Creek Reservoir in Delaware County, Indiana

Fiallos Celi, Diana E. January 2008 (has links)
The Prairie Creek Reservoir, located in east central Indiana in an agricultural watershed, serves as a secondary drinking water source as well as a recreational facility. Limited research of water quality performed at the reservoir has affected management decisions over the past years, threatening its future.. Consequently, additional investigation was necessary to examine the reservoir dynamics, and continue to provide data to determine long-term water quality trends. Basic water quality parameters were measured using a Hydrolab Sonde, nutrients were measured spectrophotometrically, and a Secchi disk was used to determine water transparency. The Prairie Creek Reservoir was categorized as an eutrophic water body. Concentrations of the measured nutrients were higher in the hypolimnion and increased as summer progressed. Concentration of ammonia and soluble reactive phosphorus exceeded the recommended water quality guidelines. Increased concentration of phosphorus has resulted in nitrogen limitation in the reservoir. Internal loading of nutrients, especially phosphorus, was found to deteriorate water quality. Dissolved oxygen concentrations varied vertically and anoxic conditions frequently reached 50% of the total reservoir depth. Reservoir restoration and watershed protection programs need to address internal P load and nitrogen limitation to prevent development of toxic algal blooms and eutrophication in the future. / Department of Natural Resources and Environmental Management
154

A master plan for Cardinal Creek : a blending of aesthetics & ecology in the restoration of an urban stream

Shaw, Timothy January 1999 (has links)
Ecological restoration techniques are increasingly employed along urban stream corridors. In the past, flood-control projects had negative impacts upon our urban streams and many of these streams suffer from degradation. Cardinal Creek, a stream that flows through Ball State University's campus is one such example. With an increase in urbanization, and subsequent loss of habitat, the stream has become nothing more than an open drain, often carrying bacteria that pose a serious health risk. Following a review of stream restoration principles and "aesthetics of care" principles, the application of these ideas is explored. This project will incorporate, both stream restoration principles and "aesthetic of care" principles in order to produce a potentially ecologically healthy and visually appealing community amenity. / Department of Architecture
155

Nutrient analysis of sediment interstitial water of the Prairie Creek Reservoir, Indiana

Matheny, Sarah E. January 2007 (has links)
Prairie Creek Reservoir in east central Indiana serves as a secondary water supply for the city of Muncie and is also used as a recreational facility. Due to water quality concerns, this study was conducted to characterize spatial and temporal variability of physical and chemical parameters, specifically nutrients, in the sediment interstitial (pore) water at three reservoir locations. The pH, temperature, specific conductivity, ammonia, nitrates, total nitrogen, orthophosphates and total phosphorus, were monitored twice per month from June through September 2006. Spatial variations in the sediment interstitial water were evident for all water quality parameters, except phosphorus and orthophosphates. Variability in temporal nutrient concentrations in pore water was most likely affected by decomposition of organic matter and presence of anoxic conditions in the overlying water. The results showed high internal nutrient loading, especially from phosphorus, in the sediment interstitial water. Under anoxic conditions, these excessive nutrient concentrations within the sediment can be released into the water column and exacerbate eutrophication of the reservoir. This study provides useful assessment of internal nutrient loading in the Prairie Creek Reservoir sediment that should be considered in the implementation of land management strategies and future land development practices in the reservoir watershed. / Department of Natural Resources and Environmental Management
156

Field works: explorations in the tall grass prairie landscape

Wreford, Liz 11 April 2007 (has links)
‘FIELD WORKS’ explores landscape experiences that were once common to the tall grass prairie region of Manitoba. The route through this project winds in and out of urban surfaces to reveal memories embedded in the land. It documents forgotten and dormant prairie events so that they might be woven back into the fabric of the city. The purpose of this project is to transfer explored and speculative experience into a physical route through the urban prairie landscape. It is an effort to expose the layers clinging to physical memories rooted in the prairie.
157

The prairie above: a regional investigation into the green roof technology and application

MacArthur, Shauna 26 April 2012 (has links)
Issues associated with urban development such as the urban heat island effect, loss of habitat, increased areas of impervious surfaces leading to storm water management concerns are well known. Many designers, engineers and policy creators are sensitive to these issues creating positive change by implementing alternatives to traditional development. Although, the concept of green roofs is not new to the prairies, modern development of this technology has not been fully embraced. Surrounded by concerns of efficacy and longevity here in the harsh northern prairie climate, green roof development and implementation has been slow. The objective of this practicum is to determine what green roof system and what vegetation of the short grass / fescue prairie and mix grass prairie would succeed in a green roof setting. Determining the appropriate planting palette and growth medium depth for the Canadian Prairies is essential for the development of the green roof industry locally.
158

Restoring blackland prairies in Mississippi remnant-restored prairie comparisons and techniques for augmenting forbs /

Dailey, Andrew Clifford, January 2008 (has links)
Thesis (M.S.)--Mississippi State University. Department of Wildlife and Fisheries. / Title from title screen. Includes bibliographical references.
159

The Construction of Alienation in Richard Ford’s Canada

Rahm, Nicholas January 2017 (has links)
Richard Ford’s Canada, published in 2012, seems to have evaded literary studies. This essay—which is an early contribution to the undoubtedly growing range of studies on Canada that will be published in the future—is concerned with how alienation is constructed in the novel. I refer to alienation as a sense of being out of place and becoming estranged, both to others as well as to one's self. The essay focuses mainly but not exclusively on the point of view of the fifteen-year-old protagonist Dell, who is thrown out into a world that has ceased to be adapted to his needs and which seems to threaten his very existence. To speak with Lukács, the protagonist steps out from an unproblematic world into a problematic one and is divided in the process as his ideas are no longer attainable. But this very process of division or alienation also creates room for agency, in the sense of independent action or the will to act independently. In Canada—particularly in the second part of the novel—alienation is constructed in the meetings between Dell and fragmented and morose characters. Dell is required to adapt to these people and the circumstances in which they meet, but in those same processes of adaptation he manages to find small ways out. This makes it possible for Dell to keep himself whole despite his deteriorating circumstances. Equally important for how alienation is constructed in the novel is the meeting between Dell and the landscape of the prairie. While the landscape at first seems to be a source of further alienation, it ultimately proves to be the only place where Dell experience communion.
160

Invasions in the Prairie Pothole Region: Addressing the Effects of Exotic Plants on Wetland and Grassland Ecosystems and Restoration Efforts

Durant, Cheyenne Elizabeth January 2020 (has links)
Three wetland restoration methods: seeding, seeding + hay mulch, and seeding + hay mulch + vegetation plugs were compared via the plant community within a formerly cropped wetland in southeastern North Dakota. Arrangement of plugs were also compared to assess the success of native species establishment. Mean relative cover for native species and introduced species were recorded and analyzed to compare the restoration methods and plug arrangement. Three herbicide treatments were studied on upland prairie sites with and without prescribed burning to test effects on leafy spurge (Euphorbia esula) control and seeded native establishment. There is no difference native species richness between the restoration methods six years post restoration, and no difference in plant cover in the different arrangement of plugs. Quinclorac significantly reduced leafy spurge cover; however, glyphosate treatments had higher cover of seeded native species.

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