Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 20 of 20

Full-Text Articles in Entire DC Network

Fire History Of Gum Swamp And Black Pond In Eastern Tennessee, U.S.A., From Macroscopic Sedimentary Charcoal, Alisa Lynn Hass Dec 2008

Fire History Of Gum Swamp And Black Pond In Eastern Tennessee, U.S.A., From Macroscopic Sedimentary Charcoal, Alisa Lynn Hass

Masters Theses

Eastern Tennessee and Great Smoky Mountains National Park are biological hotspots in which settlement by Native Americans and Euro-Americans dramatically changed the landscape through land clearance and changes in fire occurrence. I present two local fire histories using macroscopic sedimentary charcoal, one from a highly managed area and one from private agricultural land. Gum Swamp (35°35' N 83°50' W) is a pond located in Cades Cove, Great Smoky Mountains National Park that experiences seasonal drying. The 0.94 m sediment profile extends to about 425 cal yr BP, based on an AMS radiocarbon date on charcoal fragments at mid-depth in the …


Gis Data And Geoprocess Modeling For Hydrologic Network Conservation Analysis In A Green Infrastructure Plan, Andrew Lorenz Wunderlich Dec 2008

Gis Data And Geoprocess Modeling For Hydrologic Network Conservation Analysis In A Green Infrastructure Plan, Andrew Lorenz Wunderlich

Masters Theses

As urban sprawl swallows the areas around cities, planners are looking for alternative methods of development that help to protect and preserve the environment, enhance the lives of residents, and help reduce the skyrocketing costs of maintaining sprawling infrastructure. Green Infrastructure (GI) planning principles have gained in popularity due to their holistic nature and ability to balance preservation and development. A GI plan seeks to identify the critical “green” infrastructure in an area (the environmental resources that we rely on for clean air and water) and proposes complementary development strategies. One plan component of particular interest is the analysis of …


The Kozolec: Material Culture, Identity, And Social Practice In Slovenia, Toby Martin Applegate Dec 2008

The Kozolec: Material Culture, Identity, And Social Practice In Slovenia, Toby Martin Applegate

Masters Theses

This research investigates the intersections of national identity, representation, and material culture in the Republic of Slovenia. The subject of the thesis, the kozolec, is a freestanding farm implement, usually made of wood, used to dry hay as fodder for animals and, occasionally, corn for human and animal consumption. It is found on the landscape of Slovenia, a small alpine country that was formerly part of Yugoslavia. The kozolec has been romanticized as being indicative of “where” Slovenia is. It has also been cast aside as a symbol marking the Slovene landscape for both representational and practical reasons.

This thesis …


On The Trail Of Fine Ale: The Role Of Factor Conditions In The Location Of Craft Breweries In The United States, James Daniel Baginski Dec 2008

On The Trail Of Fine Ale: The Role Of Factor Conditions In The Location Of Craft Breweries In The United States, James Daniel Baginski

Masters Theses

Since their origin in the late 1970s, craft breweries have diffused throughout the United States, greatly changing American perceptions of beer in the process. The manner in which craft breweries have spread throughout the nation has not been ubiquitous; at all scales of analysis, a great deal of variation exists. Some areas are far more developed than others in terms of the number of craft breweries present. The data indicate that, while population does play a role in influencing the development of craft breweries, other sociological and demographic conditions also appear to be of great importance in explaining the spatial …


Changing Geography Of China’S International Air Transport Served By Chinese Airlines, Xumei Liu Aug 2008

Changing Geography Of China’S International Air Transport Served By Chinese Airlines, Xumei Liu

Masters Theses

This research examines international air transport served by Chinese airlines from 1990 to 2004. Specifically, this research examines how the spatial patterns of air transport networks changed during this period. Particular attention was given to the competition among the three major hubs designated by the Civil Aviation Administration of China: Beijing, Shanghai, and Guangzhou. This paper also measured regional differences denoted by air transport as well as the impacts of several significant incidents on China’s international air transport.

Data were obtained from a series of China Transportation and Communication Yearbooks (1990-2004). Each yearbook compiles airline statistics of routes, number of …


Holocene Fire History At Laguna Martínez, Costa Rica, Based On High-Resolution Macroscopic Charcoal Analysis Of An 8400 Cal Yr Bp Sediment Record, Jason Elliott Graham Aug 2008

Holocene Fire History At Laguna Martínez, Costa Rica, Based On High-Resolution Macroscopic Charcoal Analysis Of An 8400 Cal Yr Bp Sediment Record, Jason Elliott Graham

Masters Theses

Macroscopic charcoal proxy records from sediment profiles from lakes and swamps provide valuable information on the role of fire in the world’s varied ecosystems. Macroscopic charcoal is not normally transported long distances, making it a good indicator of local fire history. This study focused on the macroscopic charcoal in an 8400 cal yr BP sediment record from Laguna Martínez, located in northwestern Costa Rica on the Pacific slope of the Miravalles volcano. Prior study of pollen assemblages in the Martínez sediment core revealed the earliest evidence of maize agriculture in Costa Rica at about 5500 cal yr BP. I sampled …


Testing The Usefulness Of Pine Stomata As A Proxy In Lake Sediment Cores From Low-Latitude Environments, Brock Andrew Remus Aug 2008

Testing The Usefulness Of Pine Stomata As A Proxy In Lake Sediment Cores From Low-Latitude Environments, Brock Andrew Remus

Masters Theses

Paleoecological research, using lake cores to reconstruct past climatic and anthropogenic changes, is a burgeoning field in the circum-Caribbean. The Dominican Republic’s Las Lagunas region is being studied for this purpose using many proxies. One possible proxy for study there is pine stomata. Concentrations of pine stomata in lake sediments have been used in high-latitude and alpine locations to reconstruct tree-line movement and stand invasion, but have never been used in low-latitude environments.

In this thesis I present results of analyses of Pinus occidentalis Swartz (Hispaniolan pine or West Indian pine) stomata concentrations in lake-sediment cores from two lakes in …


Analysis Of Spatial Distribution Of Hazardous Wastes In Semcog Region, Michigan, Junfang Chen Jun 2008

Analysis Of Spatial Distribution Of Hazardous Wastes In Semcog Region, Michigan, Junfang Chen

Masters Theses

This research is devoted to an increasingly recognized issue: environmental injustice, that is, the distribution of environmental risks and/ hazards are disproportionably distributed in the space in terms of the effects on the victims. Specifically, this thesis focuses on an analysis of the spatial distribution of hazardous materials from fixed incidents and the characteristics of neighborhoods living near the incident sites, so as to test the hypothesized relationships that poor people and minority people live near the incident sites. SEMCOG region, Michigan is chosen as the study area due to its frequent occurrence of incidents involving environmental hazards. It is …


A Comparative Analysis Of Pixel-Based And Object-Oriented Image Analysis Methods Using Landsat Imagery, Jason Joseph Delisio Jun 2008

A Comparative Analysis Of Pixel-Based And Object-Oriented Image Analysis Methods Using Landsat Imagery, Jason Joseph Delisio

Masters Theses

Pixel-based and object-oriented image analysis methods are two popular techniques for classifying satellite imagery. Pixel-based analysis is typically used for coarser resolution imagery while object-oriented analysis is ideal for high resolution imagery. However, the ability of object-oriented image analysis to segment images based on factors such as shape, color, texture, and spatial attributes suggest that it can perform as well or better than pixel-based analysis in classifying medium resolution imagery. A comparative analysis of the two methods was performed using Landsat 5 Thematic Mapper imagery from September 2006 to classify grassland quality and land cover in Da'erhanmaoming'an (DaMao) Banner, Inner …


Distribution Of Fluoride In Groundwater In Selected Villages In Northern Red Sea And Anseba Regions Of Eritrea, Filmon Tsegay Fisseha Jun 2008

Distribution Of Fluoride In Groundwater In Selected Villages In Northern Red Sea And Anseba Regions Of Eritrea, Filmon Tsegay Fisseha

Masters Theses

The aim of the study is to describe the fluoride concentration of water samples primarily from sources used for household needs in selected villages of Eritrea, with emphasis on the most severely affected parts of the country. Water sample quality data were collected from The Water Resource Department of Eritrea and water quality reports indicated that high levels of fluoride content were found for some villages' groundwater sources. The highest concentration was found in Aquar, 7.7 mg/L; Northern Red Sea region, above the 1.5 mg/L Maximum concentration recommended by The World Health Organization.

Waters with high fluoride concentrations occur in …


Predicting And Analyzing Gentrification In Atlanta, Georgia, Jonathan M. Law May 2008

Predicting And Analyzing Gentrification In Atlanta, Georgia, Jonathan M. Law

Masters Theses

First viewed as an aberration by some when it began to occur in inner cities, the process of gentrification is now common and even significant in U.S. cities, as it runs counter to the urban sprawl that plagues most of them. Gentrification can have far-reaching effects, as it usually involves rising property values and changes in ethnic make-up, and sometimes gives rise to concerns over displacement of original residents and affordable housing. In the context of a broad literature on gentrification which has failed to produce much agreement on its causes or how it works, this research attempts, utilizing census …


The Impact Of Historic Logging On Woody Debris Distribution And Stream Morphology In The Great Smoky Mountains National Park, North Carolina-Tennessee, Christopher M. Morris May 2008

The Impact Of Historic Logging On Woody Debris Distribution And Stream Morphology In The Great Smoky Mountains National Park, North Carolina-Tennessee, Christopher M. Morris

Masters Theses

In the early 1900s, large sections of the Great Smoky Mountains were intensively logged. Since then, most locations have been allowed to naturally become forest-covered again, resulting in areas of secondary growth and old growth forest. To determine whether differences in large woody debris (LWD) loading and channel morphology persist today, I measured LWD, channel widths and depths, and channel bed sediments of streams in old and secondary growth forest in the Great Smoky Mountains National Park. LWD pieces in streams in old growth had larger mean diameters and lengths compared to LWD in streams in secondary growth forest. Streams …


Land Use-Transportation Interaction: Lessons Learned From An Experimental Model Using Cellular Automata And Artificial Neural Networks, Steve R. Ahrens May 2008

Land Use-Transportation Interaction: Lessons Learned From An Experimental Model Using Cellular Automata And Artificial Neural Networks, Steve R. Ahrens

Masters Theses

Land use and transportation interact to produce large urban concentrations in most major cities that create tremendous sprawl, noise, congestion, and environmental concerns. The desire to better understand this relationship has led to the development of land use–transport (LUT) models as an extension of more general urban models. The difficulties encountered in developing such models are many as local actions sum to form global patterns of land use change, producing complex interrelationships. Cellular automata (CA) simplify LUT model structure, promise resolution improvement, and effectively handle the dynamics of emergent growth. Artificial Neural Networks (ANN) can be used to quantify the …


Documenting Aguaje Palm Swamp Area And Conditions In The Peruvian Amazon, Malinda Van Sledright Apr 2008

Documenting Aguaje Palm Swamp Area And Conditions In The Peruvian Amazon, Malinda Van Sledright

Masters Theses

Mauritia flexuosa is the most widespread and economically important palm in western Amazonia and is known as aguaje in Peru. It is found mostly in "aguajales," but little is known about the size and spatial distribution of these permanently wet oligarchic forests. Aguaje is dioecious; only the female trees produce the coveted fruit, and cutting them down leaves a preponderance of unproductive male palms. There exists a consensus in the literature that levels of damage to aguajales is related to distance from settlements where extractors reside. However, no studies exist which show this relationship. By mapping 24 aguajales and conducting …


The Hope Of A New College Town At Western Michigan Through Mixed-Use Development And Creation Of A Student Consumer District, James Paul Eichstaedt Apr 2008

The Hope Of A New College Town At Western Michigan Through Mixed-Use Development And Creation Of A Student Consumer District, James Paul Eichstaedt

Masters Theses

My research will start with investigations into what an American college town is, what are the uses of Smart Growth and Mixed-Used Development in college towns, and the real estate development practices of universities in The United States and one Canadian university. The four case studies in the thesis are The Ohio State University, The University of Norte Dame, The University of Connecticut, Victoria University at The University of Toronto. Other data was collected from survey respondents of close to 200 hundred students at Western Michigan University. The purpose of the survey was to determine what amenities and housing styles …


Mining For Public And State Approval: Corporate Strategies For Metallic Sulfide Mining On Michigan’S Yellow Dog Plains, Teresa A. Bertossi Apr 2008

Mining For Public And State Approval: Corporate Strategies For Metallic Sulfide Mining On Michigan’S Yellow Dog Plains, Teresa A. Bertossi

Masters Theses

Michigan has become a frontier for metallic sulfide mining due to a high global demand for minerals and a major concentration of sulfide deposits found throughout its Midcontinent Rift. Metallic sulfide mining is challenging, especially in a water-rich state like Michigan. The disturbance of a sulfide deposit during mining activity exposes the sulfide ore to air and water, which can result in sulfuric acid. Subsequently, precipitation can cause sulfuric acid to drain from the mine site, polluting surface water and groundwater. Recently, a corporation called Kennecott Minerals has proposed a metallic sulfide mine called the Eagle Project in Michigan's Upper …


Rural Tourism As An Alternative To Rural Development In The State Of Para, Brazil, Ana Christina Sawada Cutrim Apr 2008

Rural Tourism As An Alternative To Rural Development In The State Of Para, Brazil, Ana Christina Sawada Cutrim

Masters Theses

This research is based on the potential analysis of the rural tourism industry in the cities of Braganca, Mosqueiro, and Vigia, located in the State of Para, Brazil. The representative samples were the people who went to an excursion trip organized by an elderly people association to visit the city of Braganca, and the people who went to the farm hotels located in the cities of Mosqueiro and Vigia. Surveys were conducted among the tourists during the weekends of December 2007 to January 2008. The research focused on the strengths and weaknesses of tourism in these sites.

The demographic characteristics …


Prospects And Limitations For Ecocultural Tourism In The City: Developing An Urban Heritage Water Trail On The Portage Creek, Eric Mark Kerney Apr 2008

Prospects And Limitations For Ecocultural Tourism In The City: Developing An Urban Heritage Water Trail On The Portage Creek, Eric Mark Kerney

Masters Theses

The decline in Michigan's economy and rapid loss of manufacturing jobs has forced communications to look towards new possibilities. The state's abundant water resources have potential to enhance regional economies and improve the quality of life. The Michigan Heritage Water Trails Program was initiated in 2002 by Michigan Public Act 454 in response to a lack of established routes in the state. The Portage Creek is located within the Kalamazoo River Watershed, which is being explored as a pilot project for a connected system of regional water trails. The study area of the Portage Creek is located entirely within the …


Using Composite Sampling Techniques To Monitor Bathing Beach Water Quality In Kalamazoo County, Michigan, Jeffrey David Reicherts Apr 2008

Using Composite Sampling Techniques To Monitor Bathing Beach Water Quality In Kalamazoo County, Michigan, Jeffrey David Reicherts

Masters Theses

The Kalamazoo County Health and Community Services Department conducts water quality monitoring at public bathing beaches to determine public health risks and compliance with Michigan water quality standards. These standards require local health departments to collect and analyze a minimum of three water samples during each sampling event. Water samples are analyzed for Escherichia coli (E. coli) bacteria, an organism that indicates the presence of fecal contamination. During the 2007 sampling season, nine bathing beaches were monitored once each week. Three individual point samples (n = 486) and a composite sample (n = 144) were analyzed for each sampling …


Habitat Suitability Modeling For Lake Huron Tansy In Michigan, Cathryn Elizabeth Whately Apr 2008

Habitat Suitability Modeling For Lake Huron Tansy In Michigan, Cathryn Elizabeth Whately

Masters Theses

Little scientific research has been published that addresses the habitat requirement of the Lake Huron tansy, a Michigan threatened species. Adequate protection of the tansy, location of new populations, and identification of potential restoration sites all depend on defining suitable habitat. Mahalanobis distance and partitioned Mahalanobis distance were combined with geographic information systems (GIS) to spatially model habitat suitability for Lake Huron tansy in Michigan. Several models were created for shoreline areas within the 14 counties in northern Michigan where the tansy is found. Results suggested elevation, distance to shore, slope, direction to shore and aspect were important variables for …