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Dissertations / Theses on the topic 'Desert southwest'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Johnson, Matthew B. "Woody Legumes in Southwest Desert." University of Arizona (Tucson, AZ), 1993. http://hdl.handle.net/10150/554237.

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2

Young, Kelly M. "Container Gardening In The Southwest Desert." College of Agriculture, University of Arizona (Tucson, AZ), 2016. http://hdl.handle.net/10150/625429.

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3

Lueck, Curtis Calvin. "Rational drainage design for the desert Southwest." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184819.

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Drainage systems for the desert Southwest are currently designed without much consideration for the climatological or surficial conditions of the region. The "100 year" flood has become the design standard throughout the United States due to misunderstandings about requirements of the National Flood Insurance Program. The effect of larger floods is virtually ignored, seasonal variations of rainfall patterns and intensities are neglected, and hydrologic data collection is extremely limited in watersheds of the urbanizing Southwest. The laws of nature are obscured by the rules of man during the

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4

RAUTENSTRAUCH, KURT ROBERT. "ECOLOGY OF DESERT MULE DEER IN SOUTHWEST ARIZONA." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184095.

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I evaluated methods of preventing desert mule deer from drowning in the concrete-lined Mohawk Canal, southwest Arizona, and monitored the movements of deer using this canal. A 15 km study section of the Mohawk Canal where most previous drownings occurred was checked 478 times from June 1982 through September 1985 and 5,307 deer-canal interactions (DCI) were recorded. Ninety-eight percent of the DCI were recorded from April through September. Deer fell into this canal ≥ 279 times: 116 escaped via steps, 79 via ramps, and 50 escaped unaided. Only 5 deer drowned in sections of the Mohawk Canal wi

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5

Albert, Steven Keith 1960. "Desert mule deer and forage resources in southwest Arizona." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278157.

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I measured digestible protein consumed by 4 (2 M, 2 F) captive desert mule deer (Odocoileus hemionus crooki). Deer were fed native forage collected from the Belmont Mountains, Arizona. Intake of forage differed significantly (P < 0.05) between sexes in every season. Intake of digestible protein for both sexes was highest in fall, lowest in the spring and summer for males and females, respectively. Significant (P < 0.05) differences of forage biomass were recorded among all vegetation associations and seasons in the Belmont Mountains. The most forage biomass was available in winter, the least i

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6

Sullivan, June Eileen Marie 1957. "Seeding dates and field establishment of ten southwestern desert wildflower species." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276818.

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The effects of planting date were evaluated on field establishment and flowering of ten southwestern wildflower species combined in a mix. Species tested include Baileya multiradiata, Castilleja lanata, Eschscholtzia californica, Eschscholtzia mexicana, Gaillardia pulchellum, Lesquerella gordonii, Lupinus sparsiflorus, Orthocarpus purpurascens, Penstemon eatonii, and Phacelia campanularia. Seeds of all species were combined in a mix and directly seeded into field plots. All species are native to the southwestern deserts of the United States. Treatments consisted of five planting dates, startin

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7

Johnson, Matthew Brian 1958. "Horticultural characteristics of seven Sonoran Desert woody legumes which show potential for southwestern landscaping." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276905.

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Many plants are not commercially produced due to a lack of accessible information on their horticultural requirements and landscape potential. Members of the Legume Family (Leguminosae) are often conspicuous components of the vegetation of arid and semi-arid subtropical regions. Many of these plants are suitable for landscaping use in areas suited to their cultivation. Coursetia glandulosa, Erythrina flabelliformis, Eysenhardtia orthocarpa, Haematoxylon brasiletto, Lysiloma watsonii, Pithecellobium mexicanum, and Sophora arizonica are woody legumes native to the Sonoran Desert region which off

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8

Ingham, Zita. "Reading and writing a landscape: A rhetoric of southwest desert literature." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185434.

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Using a transactional model of reading and writing, the dissertation discusses rhetorical aspects of the experience and representation of the American desert. The dissertations extends recent nonfiction scholarship that claims nature writing as literature by focusing on seven major nonfiction works: Some Strange Corners of Our Country (1891), by Charles F. Lummis; The Desert (1901), by John C. Van Dyke; The Land of Little Rain (1903), by Mary Austin; The Desert Year (1952), by Joseph Wood Krutch; Desert Solitaire (1968), by Edward Abbey; Desert Notes (1976), by Barry Lopez; and Secrets from th

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9

Zerkoune, Mohammed A. "Field Evaluation of Broccoli Varieties Grown in Southwest Low Desert Soils." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/214933.

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Based on the acreage, broccoli is the third largest vegetable crop in Yuma County, after head lettuce and romaine. It generates over 36 million dollars to Yuma's economy. Efforts are continuously made by growers, seed industry and the University of Arizona outreach program to produce better crops that respond to consumer’s choice. Selection of newly adapted varieties is made based on agronomic performance as well as commercial value. Stand uniformity disease resistance, vigor, head shape and head size are among characteristics that are evaluated. The objective of this demonstration trial is to

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Zerkoune, Mohammed A. "Field Evaluation of Broccoli Varieties Grown in Southwest Low Desert Soils." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220343.

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Based on acreage, broccoli is the third largest vegetable crop in Yuma County, after head lettuce, and romaine. It generates over $36 000000 a year. Efforts are continuously made by both seed industry and growers to grow better varieties that respond to consumers’ choice. Selection of newly adapted varieties is made based on agronomic performance as well as commercial value. Stand uniformity, disease resistance, color, head shape, and head size are among characteristics that are evaluated. The objective of this demonstration trial is to evaluate the characteristics of new varieties grown under

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11

Zerkoune, Mohammed A. "Field Evaluation of Cauliflower Varieties Grown in Southwest Low Desert Soils." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220392.

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Selection of adapted varieties to environmental factors and soil types are paramount to growing profitable cauliflower crops. Varieties are selected for uniform maturity, field holding capability, head size, shape and color. The objective of this demonstration trial is to evaluate new and existing commercial varieties under standard field conditions. Seven varieties were planted in a single row and evaluated at Yuma Agricultural Research Center (YAC) for their agronomic characteristics and their commercial values. All varieties tested performed well with an overall rating of 4 or better, indic

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12

Zerkoune, Mohammed A. "Field Evaluation of Romaine Lettuce Varieties Grown in Southwest Low Desert Soils." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/214934.

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Romaine lettuce plays an important role in Yuma’s economy. An estimated 10,000 acres are cropped to large number of varieties each year with planting season that spreads from September to March. The demonstration site was selected to compare new and existing varieties of romaine lettuce on growers’ fields using standard farming practices. Selected growth parameters were evaluated throughout the growing season. Results indicate that varieties tested at Barkley Farms in Yuma are expected to do well if grown under similar growing conditions and planting time. Varieties tested during this planting

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13

Downard, Giselle Teresa 1966. "Bird-habitat relationships along a vegetation gradient in desert grasslands of the southwest." Thesis, The University of Arizona, 1998. http://hdl.handle.net/10150/278668.

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During winter 1996-1997 and summer 1997, I studied bird assemblages along a vegetation gradient in desert grasslands of southeast Arizona and southwest New Mexico. A gradient of increasing woody cover and decreasing grass cover best described the variance in vegetation characteristics among sites. At larger scales of observation, I found woody plant characteristics had a large effect on the presence and distribution of individual species and assemblages. At finer scales of analysis, I found a greater proportion of relationships between birds and particular plant species. Bird species richness

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14

Zerkoune, Mohammed A. "Field Evaluation of Crisp-head Lettuce Varieties Grown in Southwest Low Desert Soils." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220393.

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Crisp-head lettuce plays an important role in Yuma’s economy. An estimated 51000 acres are cropped to large number of varieties each year with planting season that spreads from late August to March. Three demonstration sites and three planting dates were selected to compare new and existing varieties of head lettuce on growers’ fields using standard farming practices. Selected growth parameters were evaluated throughout the growing season. Results indicate that varieties tested at JV Farms in Welton and at Yuma Agricultural Center (YAC) are expected to do well if grown under similar conditions

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15

Dean, Rebecca M. "People, pests, and prey: The emergence of agricultural economies in the desert Southwest." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/290000.

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Recent excavations at large Early Agricultural Period village sites in Tucson, Arizona have greatly increased archaeological knowledge about the introduction of agriculture into the U.S. Southwest. The sites of Los Pozos (AZ AA:12:91 [ASM]), Las Capas (AZ AA:12:111 [ASM]), and AZ AA:12:92 (ASM) yielded very large faunal assemblages dating to the Middle Archaic, San Pedro, Early Cienega, and Late Cienega phases, spanning the introduction of Mesoamerican domesticates. This dissertation compares the fauna from these sites to a large database of published faunal material from sites dating to the M

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Dodson, Leslie Lynn. "A foggy desert| Equitable information flow for a fogwater system in southwest Morocco." Thesis, University of Colorado at Boulder, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3621317.

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<p> This dissertation describes the design, implementation and evaluation of a gender-inclusive information system linking rural women in Agni Hiya, Morocco and water project managers from the Association Dar Si-Hmad. This research was motivated by an interest in exploring the linkages between information and communication technologies (ICT), climate change, natural resource management and women's participation in community development in the drought-ridden Aït Baamrane region of southwest Morocco. The research investigates the potential for mobile phones to help address communication con

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Eldon, Desiree Rochelle. "Population Genetic Structure of Bromus tectorum in the American Desert Southwest." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/4273.

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Following its introduction to North America in the late nineteenth century, Bromus tectorum L., an inbreeding invasive winter annual grass, has become dominant on millions of hectares of sagebrush steppe habitat throughout Intermountain Western North America. It appears that within the last 30-40 years, B. tectorum has expanded its range southward into the Mojave Desert and also into more climatically extreme salt desert environments. Previous research using microsatellite markers and experimental studies has suggested that lineages found in desert habitats are genetically distinct from those

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18

Palumbo, John C. "Seasonal Dynamics and Management of Whiteflies on Melons and Vegetables in the Desert Southwest." College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/221609.

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For the past 5 years, Arizona growers have been faced with the challenge of managing whiteflies populations to prevent yield reduction and loss of quality of their vegetable and melon crops. A large cooperative research effort was directed statewide to better understand how whiteflies develop on the numerous host -crops available and the environmental factors that influence their survival throughout the year. This information was used to develop short and long term management approaches for controlling whitefly populations. We quickly discovered that preventing whiteflies from colonizing plant

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19

McKellar, Trevor T., and Trevor T. McKellar. "Evaluating How Representative Simple Multiscalar Drought Indices Are of Modeled Soil Moisture Across the Desert Southwest United States." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/622900.

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Drought indices based on monthly precipitation and sometimes temperature are widely used due to their simple calculation with readily available climate data. The portrayal of drought through simple precipitation anomalies or water balances when accounting for temperature may not capture the potentially complex evolution of drought events due to the timing, intensity, and frequency of precipitation events at the daily scale. In this study, we present a new drought index that incorporates a deterministic soil model, HYDRUS-1D, and daily climate data to assess how representative simple drought i

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20

Shepard, Christopher. "Soil Modulation of Ecosystem Response to Climate Forcing and Change Across the US Desert Southwest." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/323416.

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The dryland ecosystems of the US Desert Southwest (SW) are dependent on soil moisture for aboveground productivity; the generation of soil moisture in the SW is dependent on both soil physical properties and climate forcing. This study is one of the first regional point-scale analyses that explores the role of soil physical properties in modulating aboveground vegetation dynamics in response to climate forcing in the SW. Soil texture accounted for significant differences in average aboveground primary productivity across the SW. However, soil texture could not account for differences in inter-

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21

JENNINGS, MARK RUSSELL. "BEHAVIORAL INTERACTIONS BETWEEN DESERT PUPFISH (CYPRINODON MACULARIUS) AND MOSQUITOFISH (GAMBUSIA AFFINIS) IN SYSTEMS OPEN TO EGRESS." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183774.

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Varying numbers of adult desert pupfish (Cyprinodon macularius) and mosquitofish (Gambusia affinis) were introduced separately into experimental habitats open to egress to determine resource requirements for each species and the relation between numbers and resources. Laboratory environments in which "voluntary" colonization was achieved, were created for both species. Results indicated that both species have the innate ability to regulate numbers in their respective populations to available resources via emigration. The number of resident fish varied directly with experimental reductions of c

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22

Walworth, James, and David M. Kopec. "Response and Nutrient Uptake in Bermudagrass Treated with Aquatrols Surfactant ACA 1848 in the Desert Southwest." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/216539.

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Aquatrols surfactant ACA 1848 was applied to Tifway 419 hybrid bermudagrass at rates of 12 or 48 ounces/acre and evaluated for turfgrass growth, performance, and nutrient uptake. Soil samples collected during the growing season were analyzed for inorganic nitrogen (ammonium and nitrate). Only on the last sampling date only (September 29), the soil nitrate-nitrogen level was slightly higher in the untreated control than in other plots. Otherwise, soil nitrogen levels did not differ among treatments. Growth measurements and visual ratings did not differ among treatments at any time during the g

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23

McClurg, Paxton. "Application of Biophysical Data to an Unsupervised Classification to Map Ecoregional Boundaries in the Desert Southwest." DigitalCommons@USU, 2002. https://digitalcommons.usu.edu/etd/6598.

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An unsupervised classification was applied to continuous biophysical variables in an attempt to delineate ecoregional boundaries in the desert southwest. Output was then compared with ecoregions delineated by the Natural Resources Conservation Service (NRCS), the Environmental Protection Agency (EPA), and the Forest Service at the national level. An attempt was made to use the same biophysical variables for input into the unsupervised classification as was emphasized by the various agencies with their ecoregional classifications at the desert level. Major constraints included data availability

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Sharp, Christopher John. "Cultural Ecosystem Services as a Framework for Evaluating Wilderness Values in Public Land Settings." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/301660.

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The Wilderness Act of 1964 states the purpose of the National Wilderness Preservation System is "to secure for the American people of present and future generations the benefits of an enduring resource of wilderness." But, how to accomplish this mandate is a complex task. The application of the Ecosystem Services model is ideal for facilitating the complex duel goals of securing benefits and preserving wilderness resources. Ecosystem Services directly addresses benefits derived from a landscape, even if the specifics of the benefits change over time. This dissertation employs Ecosystem Service

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25

Palumbo, John C. "The Emergence of the Foxglove Aphid, Aulacorthum solani, as an Economic Pest of Lettuce in the Desert Southwest." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/214967.

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Several studies were conducted during the past two growing season to examine the population growth, distribution and damage potential of the foxglove aphid on head lettuce in the Yuma Valley. Light populations of foxglove aphids were first found colonizing untreated head lettuce in small experimental plots at the Yuma Agricultural Center in the spring of 2001. In the spring of 2002 foxglove aphids reached high population levels at YAC on spring plantings, but were not reported in commercial fields. This past spring foxglove aphid populations were wide-spread throughout the Yuma Valley, particu

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26

El-Hassi, A. "The socio-cultural architectural features of vernacular and contemporary dwellings for sustainable desert dwellings design in southwest Libya." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/47195/.

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Southwest Libya is one of the most important desert regions in Libya with its significant historical oases and towns. This region is characterised by the unique design of vernacular desert dwellings, with a rich architectural heritage and a remarkable convergence of cultures from the locals in the region. The nature of these dwellings is founded on the harmonious blend between architecture and people, which has formed its architectural identity over centuries. However, in recent decades, the vernacular architecture of desert dwellings, which were sustainable for many centuries, is no longer ab

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LAYSECA, MARTA. "ENERGY EFFICIENT HOUSING WITH ALTERNATIVE WALL SYSTEMS: A CASE STUDY OF STRAW BALE AND ADOBE IN THE DESERT SOUTHWEST USA." Thesis, The University of Arizona, 2002. http://hdl.handle.net/10150/555285.

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28

LARSEN, ERIC CHARLES. "COMMUNITY STRUCTURE IN BACKSWIMMERS (HEMIPTERA, NOTONECTIDAE) OF THE SOUTHWEST: A GROUP OF PREDACEOUS AQUATIC INSECTS (STOCHASTIC MODEL, DETERMINISTIC MODEL, GUILD STRUCTURE, EPHEMERAL HABITATS, SONORAN DESERT, ARIZONA, MEXICO)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183822.

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Community structure in backswimmers (Hemiptera: Notonectide), was investigated via extensive sampling throughout southern Arizona, USA, and Sonora, Mexico, from 1980 through 1985. Co-occurrence and relative abundance data were collected in more than 65 ponds, and in 177 rock basin pools (tinajas) in 21 canyons in the Southwest. Eleven species were collected in Arizona and Sonora, and were divided into two groups, species found in ponds and species found in tinajas. Only two species occurred significantly in both habitats. Tinaja species are largely Southwst endemics, and pond species are wides

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29

Leason, Helen C. "Spatial and temporal variability of vegetation cover and zones of potential aeolian activity in the southwest Kalahari Desert, determined using satellite data." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265579.

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30

Kaib, J. Mark 1963. "Fire history in riparian canyon pine-oak forests and the intervening desert grasslands of the southwest borderlands : a dendroecological, historical, and cultural inquiry." Thesis, The University of Arizona, 1998. http://hdl.handle.net/10150/192108.

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Dendroecological, documentary, and ethnoecological evidence were combined to provide an integrated understanding of past natural and cultural fires in the Southwest Borderlands. Fire frequency for the desert grasslands was inferred from synchronous intercanyon fire events. Mean fire intervals range between 4-8 years in canyon pine-oak forests, 4-9 years in the intervening desert grasslands, and 5-9 years in the mixed-conifer forests. Riparian canyon pine-oak forests were important corridors for fire spread between the desert grasslands and higher-elevation forests. The decline of postsettlemen

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31

Younger, Alexandra Carla. "Lithic Production at the Mesilla Phase Placitas Arroyo Site Complex Doña Ana County, New Mexico." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1538785/.

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This study of lithic analysis shifts attention from typological studies to explicitly behavioral analyses, complimenting studies of both intrasite and intersite patterns of variability and change. Analysis of several assemblages from the Placitas Arroyo site complex reveals changing patterns of raw material procurement and selection, core reduction strategies, as well as tool production and discard. The most striking result thus far is the quite uniform emphasis on flake production from well-prepared cores, and the near absence of manufacture or maintenance of bifacial tools, especially projec

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32

Schuch, Ursula K. "Pruning Shrubs in the Low and Mid-Elevation Deserts in Arizona." College of Agriculture, University of Arizona (Tucson, AZ), 2016. http://hdl.handle.net/10150/593581.

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Revised; Originally published: 10/2009<br>10 pp.<br>This publication presents reasons for pruning, and how and when to prune. Pruning recommendations of individual regional plants are provided and shrubs for formal and informal hedges are listed.

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Tsuzuku, Shie. "Local knowledge about Japanese vegetables and herbs among people of Japanese descent in Southwest British Columbia." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44506.

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There is a long history of Japanese immigration to British Columbia (BC). Eastern food knowledge is one of the cultural contributions the Japanese community made to BC. However, there is a concern that this knowledge will be lost in the Japanese communities because many of the practitioners are elders and there is little documentation of intergenerational knowledge. The purpose of this research is to describe the traditional and modern knowledge about Japanese vegetables and herbs among Japanese home gardeners and commercial producers in Southwest BC. Traditional and modern knowledge includes

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Stroud, Matthew. "Solar Desalination in the Southwest United States: A Thermoeconomic Analysis Utilizing the Sun to Desalt Water in High Irradiance Regions." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/232451.

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Water scarcity and high irradiance overlap in the southwestern United States. This thesis explores solar energy as a method to power desalination in the Southwest. Ten solar desalination plants were modeled using photovoltaic reverse osmosis and concentrated solar thermal multi-effect distillation. Seawater and brackish water were considered, as well as liquid and zero liquid discharge plants. Using borrowed capital amortization, levelized energy costs were estimated to be 0.067 $/kWh-electric for photovoltaic systems and 0.009 $/kWh-heat for thermal systems. Photovoltaic reverse osmosis

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"Loving it to death: Restorative architecture in the desert Southwest." Tulane University, 2017.

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The idea of taming the Desert Southwest has captivated the American psyche for hundreds of years. The intoxicating beauty of the wide-open and wild landscape has lured people westward. The lure remains: the U.S. census figures are forecasting that by the year 2030, more than 67 million people will live in the West and that Nevada, Arizona, and Utah will be among the top 5 states in the nation in terms of percentage of population increase. The survival of the Desert Southwest's ecosystem depends greatly on the geographic distribution of this growing population. As the Desert Southwest's populat

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"Loving it to Death: Restorative Architecture in the Desert Southwest." 2018.

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The idea of taming the Desert Southwest has captivated the American psyche for hundreds of years. The intoxicating beauty of the wide-open and wild landscape has lured people westward. The lure remains: the U.S. census figures are forecasting that by the year 2030, more than 67 million people will live in the West and that Nevada, Arizona, and Utah will be among the top 5 states in the nation in terms of percentage of population increase. The survival of the Desert SouthwestÕs ecosystem depends greatly on the geographic distribution of this growing population. As the Desert SouthwestÕs populat

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"Curating the Desert Southwest: Distortion as a Way of Knowing." Doctoral diss., 2020. http://hdl.handle.net/2286/R.I.57119.

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abstract: The Desert Southwest has no shortage of representations in literature, art, and film. Its aesthetics—open horizons, strange landscapes, and vast wilderness—inform and saturate the early Western films of John Ford, the paintings of Georgia O’Keeffe, Edward Abbey’s Desert Solitaire, and continue in today’s popular imaginations. My work acknowledges such contributions and then it challenges them: why are those names more widely associated with the Southwest than Luis Alberto Urrea, Alicia Gaspar de Alba, or Pat Mora? The project intersects the environmental humanities, critical theory

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"Food Plant Biogeography of the Sonoran Desert." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.54805.

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abstract: There is an ongoing debate around the extent that anthropogenic processes influence both plant species distribution dynamics and plant biodiversity patterns. Past human food use may leave a strong legacy on not only the extent that food plants are dispersed and fill their potential geographic ranges, but also on food plant species richness in areas that have been densely populated by humans through time. The persistent legacy of plant domestication on contemporary species composition has been suggested to be significant in some regions. However, little is known about the effects that

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Ward, Brandon M. "The War in the Desert: The Vietnam Antiwar Movement in the American Southwest." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6983.

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The Vietnam antiwar movement developed in the American Southwest out of a coalition of Chicanos, GI's, and students who agreed that the Vietnam War was racist, imperialist, costly, and negatively affected them and their communities. The antiwar movement in the Southwest formed in 1967, made possible by the emergence of the Chicano and GI movements. Chicanos criticized the military for a disproportionate number of Mexican American combat deaths in Vietnam. The military sent activist youth from across the country to bases in the Southwest, where they protested the war alongside Chicanos and coll

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"Characterizing Sustainable Performance and Human Thermal Comfort in Designed Landscapes of Southwest Desert Cities." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.38706.

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abstract: During summer 2014, a study was conducted as part of the Landscape Architecture Foundation Case Study Investigation to analyze features of three sustainably designed landscapes. Each project was located in a southwest desert city: Civic Space Park in Phoenix, AZ, the Pete V. Domenici US Courthouse Sustainable Landscape Retrofit in Albuquerque, NM, and George "Doc" Cavalliere Park in Scottsdale, AZ. The principal components of each case study were performance benefits that quantified ongoing ecosystem services. Performance benefits were developed from data provided by the designers an

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Clements, Andrea. "Mass, Composition, Source Identification and Impact Assessment for Fine and Coarse Atmospheric Particles in the Desert Southwest." Thesis, 2012. http://hdl.handle.net/1911/71270.

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A year-long study was conducted in Pinal County, Arizona to characterize fine and coarse particulate matter as a means of furthering our understanding of ambient concentrations and composition in rural, arid environments. Detailed measurement of ambient fine and coarse mass, ion, metal, and carbon concentrations at one-in-six day resolution was conducted at three sites from February 2009 to February 2010. Detailed organic carbon speciation was collected at 5-week resolution. A series of samples representing native soil, agricultural soil, road dust, and cattle feed lot material was collected

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"Hibernation Ecology of Bats Using Three High-Elevation Caves in Northern Arizona: Implications for Potential White-nose Syndrome Impacts on Desert Southwest Species." Master's thesis, 2020. http://hdl.handle.net/2286/R.I.62828.

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abstract: Desert ecosystems of the southwest United States are characterized by hot and arid climates, but hibernating bats can be found at high altitudes. The emerging fungal infection, white-nose syndrome, causes mortality in hibernating bat populations across eastern North America and the pathogen is increasingly observed in western regions. However, little is known about the ecology of hibernating bats in the southwest, which can help predict how these populations may respond to the fungus. My study investigated hibernating bats during two winters (2018-2019/2019-2020) at three caves in no

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Robertson, Wendy Marie. "Anthropogenic impacts on recharge processes and water quality in basin aquifers of the desert Southwest : a coupled field observation and modeling study." Thesis, 2014. http://hdl.handle.net/2152/24993.

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The development of natural grass/scrubland for agricultural use within the Trans-Pecos basins has altered recharge mechanisms and raised questions about groundwater sustainability. Past efforts focused on recharge in arid basin systems used three main assumptions: there is minimal modern recharge, no widespread recharge on basin floors, and no recharge from anthropogenic sources. However, in the Trans-Pecos, nitrate (NO₃-) concentrations have increased in basin groundwater (up by 3-4 mg/l as NO₃- in 40 yrs), refuting the “classic” model and posing water quality risks. Grazing and irrigated

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"Breaking Down Barriers Through the "STEAM" College Success Program: Increasing STEM Bachelor's Degrees for First-Generation Hispanic Students of the Desert Southwest." Doctoral diss., 2019. http://hdl.handle.net/2286/R.I.55651.

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abstract: ABSTRACT To remain competitive on local, state, and national levels and to achieve future economic and social goals, Imperial and Yuma County need an educated workforce. The primary industries supporting the desert region are technical, science, technology, enginnering and mathematics (STEM)-based, and require a highly skilled and educated workforce. There continue to be vast disparities in terms of numbers of students declared and enrolled in STEM transfer degree programs and the number of students completing STEM bachelor’s degrees. Perceptions regarding post-secondary education

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Kaib, J. Mark. "Fire history in riparian canyon pine-oak forests and the intervening desert grasslands of the southwest borderlands : a dendroecological, historical, and cultural inquiry." 1998. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1998_452_sip1_w.pdf&type=application/pdf.

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