Análisis ambiental del lago Lanalhue, región del Biobío.
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Date
2022
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Publisher
Universidad de Concepción
Abstract
El presente trabajo corresponde al análisis ambiental del Lago Lanalhue, ubicado en la región del Biobío, Chile. Este lago se encuentra en estado eutrófico debido a la intensa intervención antrópica en su cuenca aportante. El estudio realizado tiene como objetivo la caracterización morfológica, analizar los cambios de población y de uso del suelo ocurridos e investigar las actividades que contribuyeron a la proliferación de plantas acuáticas en la cuenca del Lago Lanalhue. Obteniendo como resultado una cuenca alargada, medianamente cuadrada y drenada, por lo que presenta buena respuesta a precipitaciones extrema; de los cambios de población se obtuvo un aumento del 18% de la población entre los años 2002 y 2017, y de los cambios de uso del suelo que las plantaciones aumentaron su área en 5% entre los años 2001 y 2017. Por último, los factores que ayudaron a la proliferación de plantas acuáticas son las actividades antrópicas, como la ganadería, la actividad
forestal, entre otras; que aportan nitrógeno y fósforo.
The present work corresponds to the environmental analysis of Lake Lanalhue, located in the Biobío region, Chile. This lake is in a eutrophic state due to the intense anthropic intervention in its contributing basin. The objective of the study carried out is the morphological characterization, to analyze the changes in population and land use that have occurred, and to investigate the activities that contributed to the proliferation of aquatic plants in the Lanalhue Lake basin. Obtaining as a result an elongated basin, moderately square and drained, for which it presents a good response to extreme precipitation; From the population changes, an increase of 18% of the population was obtained between the years 2002 and 2017, and from the changes in land use that the plantations increased their area by 5% between the years 2001 and 2017. Finally, the factors that helped the proliferation of aquatic plants are human activities, such as livestock, forestry, among others; that provide nitrogen and phosphorus.
The present work corresponds to the environmental analysis of Lake Lanalhue, located in the Biobío region, Chile. This lake is in a eutrophic state due to the intense anthropic intervention in its contributing basin. The objective of the study carried out is the morphological characterization, to analyze the changes in population and land use that have occurred, and to investigate the activities that contributed to the proliferation of aquatic plants in the Lanalhue Lake basin. Obtaining as a result an elongated basin, moderately square and drained, for which it presents a good response to extreme precipitation; From the population changes, an increase of 18% of the population was obtained between the years 2002 and 2017, and from the changes in land use that the plantations increased their area by 5% between the years 2001 and 2017. Finally, the factors that helped the proliferation of aquatic plants are human activities, such as livestock, forestry, among others; that provide nitrogen and phosphorus.
Description
Habilitación profesional presentada para optar al título de Ingeniero Ambiental
Keywords
Eutrofización, Plantas acuáticas, Hidrología -- Métodos estadísticos