A survey of the mineral resources, the economic rock products, and the ground-water reserves of that part of central Utah drained by the Sevier River system was undertaken by the author in the fall of 1960 as a continuation of a research project directed toward the stiumulation of economic growth in the state of Utah. The project was initiated in 1959 by Dr. Donald R. Olsen and Dr. J. Stewart Williams, who conducted a similar survey of a five county area in southwestern Utah (Olsen and Williams, 1960). Through a review of existing literature, preliminary field examination of most of the important areas, and communications with owners, operators, and consulting geologists, an attempt has been made to include in this survey all of the important economic mineral and rock deposits. A review of the ground-water supplies of the region and a discussion of related problems are also included. Each of the minerals and rock products is described alphabetically in a brief statement. This statement includes information concerning location, present status, present ownership, and geologic controls of accumulation. Where possible an estimate of the economic potential of each commodity is made. These estimates are based on accessibility, tonnage, grade, market value, etc. Each occurrence is also located on a map of the area.

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This thesis includes two different studies in an attempt to investigate and better understand the key characteristics of landscape evolution. In the first study, the rate of surface particle creep was investigated through the use of Terrestrial lidar at an archaeological site in Grand Canyon National Park. The second study developed ways to quantify metrics of the Colorado River drainage and reports the role of bedrock strength in the irregular profile of the trunk Colorado River drainage. Archaeological sites along the Colorado River corridor in Grand Canyon National Park are eroding due to a variety of surficial processes. The nature of surface particle creep is difficult to quantify and managers of this sensitive landscape wish to know the rates of erosion in order to make timely decisions regarding preservation. In the first study, two scans of a single convex hillslope were collected over the span of 12 months through the use of a ground-based lidar instrument. The scans were used to track the movement of rock clasts. This study, with a relatively small data set, did not show the expected positive relations of creep rate to slope or clast size, but did not preclude the existence of these relations either. The remarkably irregular long profile of the Colorado River has inspired several questions about the role of knickpoint recession, tectonics, and bedrock in the landscape evolution of Grand Canyon and the region. Bedrock resistance to erosion has a fundamental role in controlling topography and surface processes. In this second study, a data set of bedrock strength data was compiled and presented, providing relations of bedrock strength to hydraulicdriving forces of the trunk Colorado River drainage. Results indicate that rock strength and topographic metrics are strongly correlated in the middle to lower reaches of the plateau drainage. In the upper reaches of the drainage, intact-rock strength values are ~25% higher without a matching increase in stream power. As more tensile strength samples are analyzed and appropriately scaled with respect to fracturing and shale content, we believe we will see a clearer and more consistent pattern in the upper reaches.

A atualidade à marcada por uma forte exploraÃÃo aos recursos naturais sendo que o resultado da sobre-exploraÃÃo à refletido imediatamente na paisagem. Os ambientes aquÃticos sÃo um dos sistemas que rapidamente respondem as modificaÃÃes instauradas sobre o seu meio, dessa forma, as bacias hidrogrÃficas apresentam-se como Ãreas excelentes para estudos de diagnÃstico, pois podem indicar transformaÃÃes ocorridas em escala espacial e temporal como foi realizado por Gorayeb (2008) e Lima (2012). Foi nesse sentido que se desenvolveu um estudo na bacia de drenagem do aÃude Forquilha, localizada no setor noroeste do estado do CearÃ, regiÃo semiÃrida do estado entre as coordenadas 40Â06â51ââ de longitude oeste e 3Â45â39ââ de latitude sul. A bacia de drenagem do aÃude Forquilha abrange uma Ãrea de 191,83 Km2 e està inserida dentro do municÃpio Forquilha, no distrito de mesmo nome, distante 220 km de Fortaleza. AlÃm do aÃude Forquilha existem na Ãrea outros reservatÃrios de pequeno porte como o aÃude Pocinhos e o Juazeiro. O trabalho teve como objetivo a efetivaÃÃo de uma anÃlise geoecolÃgica, baseada no estudo das paisagens, visando à obtenÃÃo de um diagnÃstico do estado dos recursos naturais. Metodologicamente, utilizou-se da Geoecologia das Paisagens que visa à investigaÃÃo do meio natural atravÃs de um enfoque sistÃmico, desta forma, fundamentando-se principalmente nos trabalhos de Rodriguez; Silva; Cavalcanti (2004); Rodriguez, Silva (2002) e Rodriguez, Silva, Leal (2011). Para isso, realizou-se um levantamento bibliogrÃfico e cartogrÃfico; elaboraram-se mapas temÃticos da bacia na escala de 1:80000 atravÃs das tÃcnicas de geoprocessamento com apoio de produtos cartogrÃficos como a Folha SA.24-X-D-IV Sobral na escala de 1:100.000 (1972) alÃm de imagens de satÃlite Landsat 5 e 8 (2009/2014) que tambÃm serviram como suporte as prÃticas de campo. Com a efetivaÃÃo da anÃlise paisagÃstica, obteve-se a caracterizaÃÃo e a classificaÃÃo da paisagem identificando cinco unidades na bacia onde se apontou suas potencialidades e limitaÃÃes. Com o diagnÃstico, pode-se afirmar que a paisagem da bacia do aÃude Forquilha encontra-se descaracterizada de seus aspectos naturais com processos acelerados de degradaÃÃo, pois identificaram-se diversos impactos negativos na Ãrea como o desmatamento, a degradaÃÃo dos solos e a poluiÃÃo do aÃude Forquilha que apresentou eutrofizaÃÃo na maior parte do ano de acordo com as anÃlises realizadas. Por fim, constatou-se que o uso e ocupaÃÃo do solo na Ãrea vÃm sendo realizado de forma irregular o que indica a necessidade de se propor aÃÃes educativas junto à populaÃÃo e aos ÃrgÃos administrativos responsÃveis pela gestÃo da bacia a fim de viabilizar o uso sustentÃvel dos recursos naturais. / Nowadays has been marked by a strong exploration for natural resources and the result of overexploitation is reflected immediately in the landscape. The aquatic environments are one of the systems that respond quickly to changes brought about it thus the hidrografic basins are presented as excellent areas for studies of diagnostic as they may indicate transformations in spatial and temporal scale as done by Gorayeb (2008) and Lima (2012). It was developed in this sense a study on the river drainage basin the Forquilha dam, located northwest of Cearà semiarid region of the state in the coordinates 40Â06'51 '' west longitude and 3Â45'39 '' south latitude. The river drainage basin Forquilha dam covers an area of 191, 83 km2 and is inserted into the Forquilha municipality in the district of the same name, 220km far from Fortaleza. In addition to the Forquilha dam exist in the area other small reservoirs as the Pocinhos dam and Juazeiro dam. The study aimed to the realization of a geoecological analysis, based on the study of landscapes, in order to obtain a diagnosis of the state of natural resources. Methodologically, it was used the Geoecology of Landscapes that aims to research the natural environment through a systemic approach in this way, basing it primarily on studies of Rodriguez; Silva; Cavalcanti (2004); Rodriguez; Silva (2002) and Rodriguez; Silva; Leal (2011). For this, there was a literature and mapping research; it was prepared thematic maps of the basin in the scale of 1: 80,000 by using geoprocessing techniques with the support of cartographic products as SA.24-XD-IV Sobral leaf on a scale of 1: 100,000 (1984) as well as Landsat 5 satellite images and 8 (2009/2014) which also served to support the practical field. With the conclusion of landscape analysis, obtained the characterization and the landscape classification identifying five units in the basin where they pointed their potentialities and limitations. With the diagnosis, it can be said that the landscape of Forquilha dam basin is uncharacteristic of their natural aspects with accelerated processes of degradation for many negative impacts such as deforestation in the area has been identified, soil degradation and pollution on the Forquilha Weir and eutrophication presented most of the year according to the analyzes. Finally, it was found that the use and occupation of land in the area have been held irregularly indicating the need to propose educational activities among the population and the administrative agencies responsible for basin management in order to enable the sustainable use of natural resources.

Checking stations operated during the deer hunting season serve a two-fold purpose. It has long been recognized that such inspection stations aid greatly in the enforcement of hunting laws through the detection of illegal practices, and in many cases have been set up with this as a primary purpose. A more far reaching objective, however, is the collection of information to aid in the solution of the problems of maintenance of the range and the deer herd, and determination of the quality and quantity of the deer removal.

Mark-recapture studies sample unevenly over distance and generate biased or distance-weighted movement data, where short distances are sampled more frequently than long distances. I examined how study design affects the degree of distance-weighted sampling and observed movement distributions of stream fish. A modeling study illustrated how distance-weighting increases with the number of mark sites and decreases with the length of stream sampled during recapture. Sub-sampled empirical data sets indicated that longer movements can be detected by increasing the length of the recapture section and that a substantial proportion of fish may move long distances outside of study areas. I also examined factors that were associated with movement in a network of streams. The probability of emigrating from a site was positively related to intermittency and body size and negatively related to distance from the mainstem creek and habitat complexity. Movement rates, measured as the number of fish moving upstream through a trap per day, were positively related to increases in flow, daylength, and water temperature. Distance moved was greater for fish that were initially marked within intermittent reaches. Overall, some species moved in association with several of these factors but others did not respond to any factors. Finally, I identified species-level attributes that were associated with colonization rates after experimental defaunation. Movement rate and abundance explained the most interspecific variation in colonization rates when compared to competing predictors (spatial distribution, body size, and family). Recovery occurred slowly and several species had not restored more than half of their pre-defaunation abundance within a year. Despite slow recovery for some species, defaunation had only a short-term (i.e., < 3 months) effect on relative abundance patterns. This study has important implications for conservation. Improvements in study design will allow detection of longer movements that may be a key component of species invasions, demographic rescue, and colonization. Species that move in association with multiple factors may be better colonists than species that do not. Finally, species that are rare and less-mobile will recover their populations slowly and will be vulnerable to extirpation in systems impacted by frequent pulse disturbances. / Ph. D.

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There is enough rendering power to draw more than only simple indoor scenes today and it can produce very realistic images of landscape with vegetation. Moreover, there are new sophisticated methods for generating of such landscape and simulation of plants ecosystem. This text explains few algorithms for generating and methods for interactive rendering of landscape and vegetation.