Efectos de la minería sobre la dinámica fluvial del Río Ariari y los elementos antrópicos en el tramo del puente El Alcaraván y Puerto Caldas, Granada - Meta
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2021
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Universidad de La Salle. Facultad de Ingeniería. Ingeniería Ambiental y Sanitaria
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El rio Ariari, es un río trenzado que ha sido intervenido por factores antrópicos a lo largo de los años. El objetivo de este estudio fue evaluar los efectos de la minería sobre la dinámica fluvial del Río Ariari y los elementos antrópicos localizados en el sector comprendido entre el puente y El Alcaraván y Puerto Caldas. La metodología se basó en 7 fases comprendidas en el tratamiento de información secundaria; la georreferenciación de imágenes aéreas y satelitales; la delimitación de geoformas; evaluación de la dinámica fluvial; identificación de puntos críticos; los efectos de la socavación en la región; y las afectaciones de la minería en el río Ariari. De acuerdo con esto, se hizo un análisis multitemporal donde se evidenciaron todos los cambios en la morfología y dinámica del río en el tramo delimitado, además, se analizó el porcentaje de barras vegetadas y de sedimento por cada año y se tuvo en cuenta los usos del suelo frente a su vocación y su capacidad. El análisis de las imágenes se complementó con una visita de campo y entrevistas a la comunidad ribereña, con el propósito de identificar impactos locales y antecedentes relevantes para el estudio.
The Ariari River is a braided river that has been intervened by anthropic factors over the years. The objective of this study was to evaluate the effects of mining on the fluvial dynamics of the Ariari River and the anthropic elements located in the sector between the bridge and El Alcaraván and Puerto Caldas. The methodology was based on 7 phases included in the treatment of secondary information; the georeferencing of aerial and satellite images; the delimitation of geoforms; evaluation of river dynamics; identification of critical points; the effects of scour in the region; and the effects of mining on the Ariari River. In accordance with this, a multitemporal analysis was made where all the changes in the morphology and dynamics of the river in the delimited section were evidenced, in addition, the percentage of vegetated bars and sediment bars for each year. The uses of the land were also taken into account in relation to their vocation and capacity. The analysis of the images was complemented with a field visit and interviews with the riverside community, in order to identify local impacts and relevant background for the study.
The Ariari River is a braided river that has been intervened by anthropic factors over the years. The objective of this study was to evaluate the effects of mining on the fluvial dynamics of the Ariari River and the anthropic elements located in the sector between the bridge and El Alcaraván and Puerto Caldas. The methodology was based on 7 phases included in the treatment of secondary information; the georeferencing of aerial and satellite images; the delimitation of geoforms; evaluation of river dynamics; identification of critical points; the effects of scour in the region; and the effects of mining on the Ariari River. In accordance with this, a multitemporal analysis was made where all the changes in the morphology and dynamics of the river in the delimited section were evidenced, in addition, the percentage of vegetated bars and sediment bars for each year. The uses of the land were also taken into account in relation to their vocation and capacity. The analysis of the images was complemented with a field visit and interviews with the riverside community, in order to identify local impacts and relevant background for the study.
Palabras clave
Ríos trenzados, Elementos antrópicos, Dinámica fluvial, Socavación, Barras de sedimento, Análisis multitemporal, Braided rivers, Anthropic elements, River dynamics, Scour, Sediment bars, River morphology.