Trabajos de Titulación - Ingeniería Ambiental
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Examinando Trabajos de Titulación - Ingeniería Ambiental por Asesores "Salazar Orellana, Marjorie Jazmín"
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- ÍtemAcceso AbiertoEvaluación del potencial nitrificante de cepas bacterianas cultivables aisladas del suelo de un bosque nativo y bosque de pino ubicados en la microcuenca del Machángara(Universidad Católica de Cuenca., 2022) Pereira Samaniego, Steeven Alexander; Salazar Orellana, Marjorie Jazmín; 0706373057
- ÍtemAcceso AbiertoIdentificación de cepas bacterianas que intervienen en la solubilización del fósforo como base para procesos de Biorremediación(Universidad Católica de Cuenca., 2023) Pinos Saquinaula, Mariela Cristina; Salazar Orellana, Marjorie Jazmín; 0106078660Phosphorus is a fundamental element for plant development; however, its presence in the soil is limited and can be depleted due to various natural processes such as erosion, leaching, and fixation. This study focused on reactivating 67 bacterial strains from the Ruth Moore mycotheque at the Center for Research, Innovation, and Technology Transfer (CIITT by its Spanish acronym). The main objective was to identify bacterial strains capable of solubilizing phosphorus using the specific culture medium known as NBRIP (National Botanic Research Institute’s phosphate growth medium). The results obtained through the halos formed by these bacterial strains allowed the identification of 40 species with the ability to solubilize phosphorus. A literature review was conducted to categorize these species into different groups: 9 species were previously identified by name as phosphorus solubilizers, 19 species were categorized as pathogenic, and three species were reported as non-solubilizers of phosphorus. However, they are used in various bioremediation processes and nine species lacked information regarding their ability to dissolve phosphorus. Notably, this literature review confirmed that Pseudomonas fluorescens stands out as the most effective and widely used in the production of bio inputs.
- ÍtemAcceso AbiertoIncidencia del cambio y uso de suelo en el ecotono hiporreico de la Cuenca del Machángara: variables físico químicas y macrobiota asociada (macroinvertebrados bentónicos)(Universidad Católica de Cuenca., 2023) Vanegas Argudo, Erika Paulina; Salazar Orellana, Marjorie Jazmín; 0150380582Land use change is a crucial phenomenon that has transformed landscapes and human communities in recent decades. Areas once covered by natural forests and moors have been replaced by agricultural land and urban areas, significantly impacting the environment and society. A comprehensive study was conducted in the Machángara River basin, analyzing water quality at five points along the river. The results revealed a decline in water quality as water flowed from the moors to the city. Satellite imagery was used to track changes from 2018 to 2023, evidencing urban expansion in Graiman and Ochoa León, and deforestation and conversion to agricultural land in Las Truchas and Ochoa León. These changes are directly related to human activities. The transformation of forested areas into urban or agricultural zones increases the load of pollutants and reduces aquatic biodiversity. The study established significant connections between physicochemical and biological water variables and changes in land use, especially in the populated area of Graiman. The presence of phosphates, suspended solids, and ammonium correlated with lower benthic macroinvertebrate biodiversity and, thus, poor water quality. This highlights the importance of taking adequate measures to protect water quality and maintain the ecological equilibrium in the Machángara River basin.
- ÍtemAcceso AbiertoRelación de los parámetros físico-químicos sobre la diversidad de macroinvertebrados en la zona hiporreica: del afluente y efluente de las represas El Labrado y Chanlud(Universidad Católica de Cuenca., 2023) Calle Zumba, Cinthya Jacqueline; Salazar Orellana, Marjorie Jazmín; 0107133340