Physical and Environmental Geography Commons^™

Assessing Seasonal Features Of Tropical Forests Using Remote Sensing, Roberto Bonifaz-Alfonzo

Department of Geography: Dissertations, Theses, and Student Research

Tropical forests are key components of the biogeochemical cycles, complex in structure, diversity and dynamics, also, tropical regions have been deforested and modified by human activities particularly for agriculture. Understanding the inter-annual and intra-annual variation dynamics of tropical regions could give valuable information on temporal characteristics of ecosystems behavior which is important for mapping and monitoring. This dissertation assesses seasonal and inter-annual changes in the tropical land cover that may be related to changes in the natural environment and/or human activities. Research was focused on the Mayan forest located in southern Mexico and Northwest Guatemala, one of the northern-most important …

Invisible Occupation: Indigenous Natural Resource Management In The Peruvian Amazon, Aleah Goldin, David S. Salisbury, James Águila Soria, Raquel Espinosa Linares, Enzo Pinedo Ramírez, Luís Rosero Flores, Miguel Núnez Sánchez, Gerardo Cavero Oroche, Jorge Vela Alvarado, Oscar Barreto Vásquez, Giraldo Almeida Villanueva, Carlos Pérez Alván

Geography and the Environment Poster Presentations

On June 5th 2009, an estimated thirty people died in a clash between governmental authorities and indigenous people near Bagua, Peru. Termed the "Bagua Massacre," this event underscores the marginalized role of Indigenous Amazonians when confronting multinational commercial interests supported by the state (Shepard, 2009). The indigenous people were protesting the “Law of the Jungle,” Decree 1090, a 2009 decree assuming heavily-forested indigenous lands idle and unproductive, and providing the legal basis to privatize comunally-held forests to facilitate petroleum, biofuel, hydroelectric and logging projects. Since contact, the assumption of indigenous people unproductively managing their forested homelands has fueled colonization, deforestation, …

Gestión Invisible: Manejo De Recursos Naturales En Dos Comunidades Indígenas Peruanas, Aleah Goldin, Yazmin Nunez, David S. Salisbury, James Águila Soria, Raquel Espinosa Linares, Enzo Pinedo Ramírez, Luís Rosero Flores, Miguel Nuñez Sánchez, Gerardo Cavero Oroche, Jorge Vela Alvarado, Oscar Barreto Vásquez, Giraldo Almeida Villanueva, Carlos Pérez Alván

Geography and the Environment Poster Presentations

El 5 de junio de 2009, unas treinta personas murieron en Bagua, Perú en un enfrentamiento entre las autoridades gubernamentales y los pueblos indígenas. El evento denominado el "Baguazo", destaca el papel marginalizado de los indígenas amazónicos cuando se enfrentan a los intereses comerciales multinacionales respaldados por el Estado (Shepard, 2009). Los pueblos indígenas estaban protestando la "Ley de la Selva", el Decreto 1090, un decreto de 2009 asumiendo las tierras indígenas boscosas como improductivas, y que proporciona la base legal para privatizar los bosques comunales para facilitar la extracción de petróleo, los proyectos de biocombustibles, los proyectos hidroeléctricos y …

The Analysis Of Agricultural Landscape Change Using Gis Techniques. Case Study: Podoleni, Romania, Dan A. Chelaru, Adrian Ursu, Florin C. Mihai

Florin C MIHAI

The increasingly tensions rising between society’s need for resources and space on the one hand, and the capacity of the land to support these needs on the other hand lead to unprecedented changes in landscape configuration, and hence, to the environment. This paper analyzes changes in the agricultural landscape of Podoleni, Neamt County, Romania, in spatio - temporal terms, as a result of the modernization of the ground processing techniques, types of crops, and the degree of fragmentation of land parcels. The study was conducted using Geographical Information Systems techniques, the main materials used in the analysis are topographic maps …

Theorizing Scale In Critical Place-Name Studies, Joshua Hagen

Geography Faculty Research

Building on broader developments in critical social theory, geographers have made significant strides in explicating the assumptions, motivations, and values involved in place naming. This has led to an emphasis on understanding the processes involved in the inscription, subversion, and revision of place names. Despite the increasingly sophisticated approaches found in place-name studies, the field of toponymy occupies a relatively minor position in academic geography. There are varied and complex reasons for this marginality, but perhaps the most salient critique is that place-name research has been slow to engage broader developments in geographic and social theory.

Conservación Y Desarrollo En Las Fronteras Amazónicas Entre Perú Y Acre, Brasil, David S. Salisbury

Geography and the Environment Maps

Conservación y Desarrollo en las Fronteras Amazónicas entre Perú y Acre, Brasil

Conservation and Development in the Amazonian Frontier between Peru and Acre, Brazil

The Geography Of Greenhouse Gas Emissions From Within Urban Areas Of India, Jochen Albrecht, Peter Marcotullio, Andrea Sarzynski

Publications and Research

This paper examines the patterns of greenhouse gas (GHG) emissions from urban areas in India—a rapidly growing and urbanizing nation. It uses a new dataset, Emission Dataset for Global Atmospheric Research (EDGAR) to estimate the urban share of national GHG emissions. It presents a geographic picture of emission variation by urban form (urban population size, area size, density, and growth rate), and economic (GDP and GDP per capita), geographic (location of emissions released: 20, 40, and 80 km from urban areas), and biophysical (ecosystem and climate: cooling degree days) characteristics. Dependent variables include emissions of carbon dioxide (CO2), methane (CH4), …

Anthropogenic Landform Modeling Using Gis Techniques Case Study: Vrancea Region, Adrian Ursu, Dan A. Chelaru, Florin C. Mihai

Florin C MIHAI

Anthropogenic landforms are the result of significant changes in the Earth's crust due to technological development of human society, guided by its economic, social and cultural needs. nthropogenic landforms of the studied area was analyzed using GIS techniques at the general scale, conducting the entire study area maps, and detailed modeling of representative samples in detail. Representing the anthropogenic landforms on the digital elevation model can be very important in studying natural hazards, such as hydrological modeling on flood plains, which could influence the direction of the flood wave. The digital elevation model (DEM) made by traditional methods can not …

Land Use As It Relates To Land Slope, James D. Plourde, Bryan C. Pijanowski

GIS Day

The goal of this project is to analyze the relationship between the slope of land and agricultural land use. The output was analyzed to determine a threshold point at which agriculture practices drop off in relation to higher slope values. Slope of the land is important to agricultural practices because it impacts drainage and net crop primary production. Agricultural land was extracted from the 2001 National Land Cover Dataset using reclassification tools in ArcGIS 9.3. The slope of the contiguous United States was derived from the United States Geological Survey National Elevation Dataset by using the slope tool in the …

Mapping In Philanthropy: Exploring The Use Of Mapping In Foundation Grantmaking, Jim Casey

Geography and the Environment: Graduate Student Capstones

Foundations provide grants to nonprofit organizations in our communities, who then provide services locally. Choosing which nonprofit to fund, and which not to fund is difficult. This study examines current uses and upcoming uses of mapping and Geographic Information Systems (GIS) as part of funding decisions made by foundations. Foundations engaged in strategic funding, especially that which targets specific populations are more likely to use GIS and geospatial analysis in funding decisions. Grantmaking in response to proposals requires less strategic analysis and calls for mapping much less by comparison. As a field, nationally foundations and nonprofits have identified many uses …

Developing Tornado Climatology In The Southern Great Plains Per Phases Of Prominent Oceanic Oscillations, Nicholas M. Fillo

Geography and the Environment: Graduate Student Capstones

Meteorologists are continually working toward a greater understanding of which atmospheric environments are most conducive for tornado development. This Capstone project analyzed tornado occurrences across Texas, Oklahoma, Arkansas and Louisiana during the period 1950 through 2009 to determine if any correlation exists between the location and frequency of tornado activity and the phases of the El Nino-Southern Oscillation, the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation. While it was determined that no phase of any of the oscillations studied was significantly more dominant over the other(s) concerning frequency, this project does identify some spatial shifts in tornado activity depending …

Design Of A Comprehensive Geographic Information System For The Administration Of El Camino Real De Los Tejas National Historic Trail, Jeffrey M. Williams

Faculty Publications

Stephen F. Austin State University’s Arthur Temple College of Forestry and Agriculture’s (ATCOFA) Geographic Information Systems (GIS) Laboratory were engaged by the National Park Service (NPS) National Trails System-Intermountain Region to provide GIS services supporting the NPS’s development of a Comprehensive Management Plan for El Camino Real de los Tejas National Historic Trail (ELTE). The scope of work was completed under an agreement with the Gulf Coast Cooperative Ecosystem Studies Unit sponsored by the Texas AgriLife Research Program at Texas A&M University. ATCOFA assisted the NPS in the coordination of local landowner and other local stakeholder contacts, conducted archival research …

Determining Heritage Oak Tree Susceptibility To Sudden Oak Death Using Gis Risk Analysis, Michelle M. Guzdek

Geography and the Environment: Graduate Student Capstones

Sudden Oak Death (SOD), caused by the pathogenic water mold Phytophthora ramorum, has killed hundreds of thousands of oak trees in the California coastal regions, with redwood-tanoak forests being hit the hardest (Shoemaker et al., 2007). The term “sudden oak death” is used to describe the disease, because of how rapidly the pathogen has killed otherwise healthy tanoaks, virtually in a matter of weeks (COMTF 2010). SOD was first reported in California in 1994 and is believed to have originated from infected nursery or ornamental plants, but the source has never been identified (Mascheretti et al. 2008).

Using Gis To Determine Wind Harvesting Potential To Help Offset Boulder County's Yearly Energy Usage To Become A More Sustainable County, Pete Coventry

Geography and the Environment: Graduate Student Capstones

This project focuses on Boulder County, Colorado as a case study to demonstrate how a Geographic Information System (GIS) can identify potential wind harvesting areas. A step by step demonstration will illustrate the steps needed to determine such harvesting areas and their wind potential. Once potential wind harvesting areas have been identified, concluding analysis will determine the amount of energy generated in efforts to offset current energy use. Harvesting wind has dated back to the 7^th century and is looked at as a mature technology (Edwards 2003). Over the past few decades, public attitudes towards wind harvesting is becoming …

An Analysis Of The Conservation Importance Of Amazon Borderlands Using Geographic Information Systems, Ben Weinstein, David S. Salisbury, Kimberly Britt Klinker

Geography and the Environment Poster Presentations

At 6,000,000 km2, the Amazon basin is a critical hotspot of global biodiversity. The Amazon lowland is often incorrectly portrayed as a single homogenous unit, a vast and unpopulated region (Eva & Huber 2005). In actuality, nine countries comprise the Amazon, creating a mosaic of ecological, cultural and political boundaries (Manne 2003, Maffi 2005). Our aim is to test whether these Amazonian borderlands have greater conservation significance than the Amazonian interior. The political geography has profound effects on conservation as each country designates and maintains area differently (Eva & Huber 2005). Depending on management type, protected areas shelter ecosystems from …

Mius News: Maps And Imagery User Services @ Fiu Green Library: Vol. 3, Issue 2, Spring 2010, Jill V. Krefft

MIUS News

Florida International University's Spring 2010 Map and User Imagery Services Newsletter.

Analysis Of Streamflow In The St. Croix River: A Hydrologic Model, Stephanie A. Kleinschmidt

Geography Honors Projects

This project assesses how streamflow is affected by anthropogenic changes to the environment, looking specifically at the St. Croix River Basin. In 2004 the United States Geologic Survey (USGS) published a report on streamflow in the St. Croix River at two gaging stations: Danbury and St. Croix Falls. The streamflow at the upstream station near Danbury, Wisconsin remained stable over time, while an increase was observed at the station in St. Croix Falls, Wisconsin further downstream. In order to evaluate this disparity, this project utilizes a GIS hydrologic model to analyze the factors expected to be influencing the flow rate. …

Contemporary Issues In Infrastructural Development And Management In Nigeria, Olarewaju Oluseyi Ifatimehin, David Okoro Ogbonna, Salihu Danlami Musa, Adesola Ogidiolu

Olarewaju Oluseyi Ifatimehin

No abstract provided.

The Changing Contexts And Transboundary Dynamics Of Reconciling Conservation And Development In The Amazon Borderlands, David S. Salisbury, Jorge Vela Alvarado, Cloe R. Franko

Geography and the Environment Poster Presentations

The 12,000 kilometers of international boundaries within the Amazon’s lowland rainforest biome form the axis of a borderland region shared by the nine states of Amazonia (Figure 1). These Amazon borderlands contain high concentrations of conservation units and indigenous territories to preserve the transboundary region’s rich ecological and cultural diversity (Figures 2 & 3). However, this biocultural diversity is increasingly threatened by advancing development frontiers and a growing global demand for Amazonian resources.

An Analysis Of Temperature Variations Using Remote Sensing Approach In Lokoja Area, Fanan Ujoh Mr, Olarewaju O. Ifatimehin Mr, Sunday Ishaya Mr

Dr. Fanan Ujoh

This study investigates the thermal variations of the different land use/cover types in urban Lokoja town retrieved from Landsat TM imagery of 1987. Band 2, 3, 4 and 6 of the imagery were used in the classification, estimation of NDVI, land surface emissivity values, and satellite sensor temperature. The Qin et al’s mono window algorithm was employed to obtain the land surface temperatures of the different land use/cover types classified. The results indicate that there is a significant variation in temperatures among the different land use/cover types in Lokoja. The built up area and the vacant area have the highest …

Combining A Dispersal Model With Network Theory To Assess Habitat Connectivity, Todd R. Lookingbill, Robert H. Gardner, Joseph R. Ferrari, Cherry E. Keller

Geography and the Environment Faculty Publications

Assessing the potential for threatened species to persist and spread within fragmented landscapes requires the identification of core areas that can sustain resident populations and dispersal corridors that can link these core areas with isolated patches of remnant habitat. We developed a set of GIS tools, simulation methods, and network analysis procedures to assess potential landscape connectivity for the Delmarva fox squirrel (DFS; Sciurus niger cinereus), an endangered species inhabiting forested areas on the Delmarva Peninsula, USA. Information on the DFS’s life history and dispersal characteristics, together with data on the composition and configuration of land cover on the peninsula, …

Tracking Bare Sand Mobilization Arising From Landscape Manipulations In The Grasslands Destabilization Experiment (Gdex) In The Nebraska Sandhills Using Imaging Spectroscopy, Benjamin Helder

The Journal of Undergraduate Research

The Grassland Destabilization Experiment (GDEX) is a landscape scale manipulative experiment initiated in 2004 in the Nebraska Sandhills to evaluate changes in surface properties following the abrupt loss of stabilizing vegetation. The GDEX features five treatments allocated among ten plots of 120 m in diameter (1.13 ha). The Aggressive Bare Sand protocol included chemical defoliation and subsequent shallow disking and raking in 2004 to devegetate the plot with periodic physical disturbance to maintain bare sand. The Long Term Disturbance (Press) protocol includes an initial chemical defoliation in May 2005 and seasonal spring reapplications, but no physical disturbance. Short Term Disturbance …

United States Land Cover Land Use Change, Albedo And Radiative Forcing: Past And Potential Climate Implications, Christopher A. Barnes

Electronic Theses and Dissertations

Land Cover Land Use (LCLU) change affects Earth surface properties including albedo that impose a radiative forcing on the climate. Recent spatially explicit satellite derived contemporary LCLU, albedo, and projected LCLU data are used to study the impact of LCLU change from 1973 to 2000, and from 2000 to 2050, on albedo and surface radiative forcing for the conterminous United States. Four research hypotheses concerned with past and potential future climate implications of LCLU change are addressed. The research described in this dissertation makes an important contribution to advancing understanding of the role of LCLU change on the climate system, …

Using Conservative And Biological Tracers To Better Understand The Transport Of Agricultural Contaminants From Soil Water Through The Epikarstic Zone, Brian Ham

Masters Theses & Specialist Projects

Agriculture contamination is very common in karst systems due to the vulnerability of these aquifers. Animal waste is often spread across crop land to enrich the soil with nitrates and phosphates. Herbicides and pesticides are also applied to the crops. The transport of these pollutants through the soil and epikarst is a difficult process to monitor due to the complex, heterogeneous behavior of the groundwater as it makes its way down to the aquifer below.

An experimental site at Crumps Cave lended a unique opportunity to monitor the vadose zone at a waterfall in the cave below. A previous dye …

Mius News: Maps And Imagery User Services @ Fiu Green Library: Vol. 3, Issue 2 Fall 2009, Jill V. Krefft

MIUS News

Florida International University's Fall 2009 Map and User Imagery Services Newsletter; Vol. 3, issue 2.

Mius News: Maps And Imagery User Services @ Fiu Green Library: Vol. 3, Issue 1 Fall 2009, Jill V. Krefft

MIUS News

Florida International University's Fall 2009 Map and User Imagery Services Newsletter.

Resource Conflict Among Farmers And Fulani Herdsmen: Implications For Resource Sustainability, Olarewaju Oluseyi Ifatimehin, Marietu Tenuche

Olarewaju Oluseyi Ifatimehin

This study describes the traditional relationship between farmers and Fulani herdsmen in the incessant resource conflict witnessed in Kogi State, Nigeria and how it affects livelihood security of those involved and resource sustainability for the communities. These conflicts are most responsible for the unsustainable utilization of land and water resources as the trampling by the hooves of herds of cattle compacts the soil of farm land, destroy farm crops by the herdsmen, places restraint on effective utilization of arable farmland among other destruction of available resources. It is understood that these conflicts have their roots in the land tenure system, …

Mius News: Maps And Imagery User Services @ Fiu Green Library: Vol. 2, Issue 2 Spring 2009, Jill V. Krefft

MIUS News

Florida International University's Spring 2009 Map and User Imagery Services Newsletter.

An Analysis Of The Changing Land Use And Its Impact On The Environment Of Anyigba Town, Nigeria, Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa

Olarewaju Oluseyi Ifatimehin

Urbanization is a process that always initiates the continual transformation of land from one use to the other. Land transformation is presently being experienced in and around fast growing towns, like Anyigba in Kogi State. This study used Remote sensing and GIS techniques to identify, mark, and measure the extent of the various land uses from the Land use map of 1995 and Nigeriasat 1 imagery of 2006. The study revealed that there have been tremendous transformation in the various land uses, with the built-up area expanding more than other land uses with 398.4%. Gaining 167 ha, 613.45 ha, 159.62 …

An Evaluation Of The Effect Of Land Use/Cover Change On The Surface Temperature Of Lokoja Town, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This research integrated remote sensing and Geographic Information Systems (GIS) to identified land use/cover types in Lokoja, including their temporal transformation and association with surface temperatures from the LandSat TM and LandSat ETM imageries of 1987 and 2001 respectively. As the built-up area increased in size (2667.6%) so was the surface temperature (6.48oC), vacant land (872%: 9.65oC), cultivated land (104.4%: 1.2oC) and water bodies (64.3%:0.94oC) while vegetation cover increased by 2.44oC while its area extent decreased (316.7%). These changes were responsible for the rise in the mean surface temperature from 38.39oC in 1987 to 42.61oC in 2001, indicating a 4.22oC …