Repository logo

Browsing by Author "Obando Bastidas, Jorge Alejandro"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Análisis de la contaminación microbiológica en el río Combeima, municipio de Ibagué (Tolima, Colombia)
    (Corporación Universitaria Lasallista, 2015-07) Montenegro, Aldemar Franco; Torres Pérez, Rosa Edith; Obando Bastidas, Jorge Alejandro
    Introduction. The microbiological contamination level in the Combeima river. Objective. Was determined in order to analyze its potential risks for being consumed by humans, for recreation and other uses. Materials and methods. From reports of monthly average of total and fecal coliforms, by samplings performed in the intake of its aqueduct system between 2008 and 2012, plus its correlation with the monthly average turbidity occurred. Besides, during 2014 and during dry and rainy seasons, water samples were taken in seven places located throughout the river, in the upstream of the aqueduct system´s intake. Results. The results obtained show high microbiological contamination in the time of the analysis and an evident increase downstream, until waters arrive to the aqueduct system, and the discharges of not treated waste waters are relevant, including those with fecal coliforms from rural houses and from livestock activities, especially pig and poultry breeding. Besides, the changes in the river´s turbidity influenced, mainly, the total concentrations of coliforms, but were not relevant in the fecal ones. Conclusion. In 2014, the dry season had a bigger microbiological contamination compared to the rainy one, thus being more hazardous for human consumption.
  • Thumbnail Image
    Item
    Valoración social del recurso natural fauna en el humedal Coroncoro de Villavicencio
    (Corporación Universitaria Lasallista, Editorial Lasallista., 2015) Franco Montenegro, Aldemar; Torres Pérez, Rosa Edith; Obando Bastidas, Jorge Alejandro
    The Coroncoro wetland is one of the best known in Villavicencio, given its variety of exotic fauna. Nevertheless, human activities related to cattle raising, agriculture and urban developments have affected this natural wealth. Objective. Socially assess the fauna, with tangible and intangible assessment methods and the statistical method of principal components analysis (PCA). Materials and methods. By applying Likert surveys and direct observation processes, the value of “not commercial” services associated to landscape, cultural, recreational and historical values is recognized. These methods assess the perception of enjoying peace, sightseeing, exotic beauty and the harmonic sounds of the wetland. 320 people who visited the wetland for a month were surveyed. Results. The visual procedure and the significant PCA values allowed an assessment of the qualifications and feelings generated by the Coroncoro wetland ́s fauna in the community adjacent to it, thus analyzing its social value. Conclusion. The observation and the PCA methods, under their significations, allowed a determination of the appraisal and the affection visitors have for these natural spaces. The fauna is equally appreciated and respect for animals, and the necessity of avoiding their commercialization is promoted