Determinación de la variación del cauce del Río Los Tintos en el recinto Boca de Caña, Cantón Samborondón, mediante interpretación geológica
Fecha
2017
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
El presente estudio nos permitió determinar las variaciones que ha tenido el cauce del
río Los Tintos en 23 años (1977 – 2000) para lo cual se realizó un análisis
multitemporal con la ayuda de un Sistema de Información Geográfica (SIG). Los Tintos
nace de la unión de los ríos Bapado y Salitre cerca del sector Zapanal y desemboca con
el río Babahoyo. Se realizó la caracterización geológica del área que consistió en
recopilar información en base a informes técnicos, tesis, artículos científicos,
documentales, libros e información de la web. Para el estudio multitemporal se
analizaron manualmente y con teledetección las fotografías aéreas de los años 1977,
1987, 1994 y 2000, este análisis permitió determinar la variación que ha tenido el cauce
del río los Tintos y las zonas en donde han existido depositaciones y erosiones a través
de todos estos años. Como resultado se obtuvo el siguiente análisis que a su vez fue
divido en sectores para mayor comprensión. El primer sector comprendió el nacimiento
del río hasta el recinto Boca de río Seco, en él se pudo determinar que el cauce del río
ha sufrido grandes variaciones por ser geomorfológicamente bajo y en presencia de
fenómenos climáticos como fuertes lluvias o El Niño, los márgenes derechos e
izquierdos se han inundado. El segundo sector abarca desde recinto Boca de río Seco
hasta el recinto Boca de Caña, este tramo del río hasta la actualidad presenta un proceso
de erosión fluvial y depositación moderadamente leve. El tercer sector empieza desde el
recinto Boca de Caña hasta la desembocadura del río los Tintos con el Babahoyo, este
sector comprende la zona más importante de estudio, se pudo constatar que el recinto
Boca de Caña actualmente padece de un proceso de depositación, lo cual está
permitiendo que el margen derecho del río esté siendo utilizado para la agricultura en el
recinto, mientras que su margen izquierdo correspondiente a la parroquia Tarifa está en
un proceso de erosión fluvial, exponiendo a Tarifa a ser un área muy susceptible, debido
a que esté fenómeno de erosión está permitiendo que el suelo se esté socavando. El área
en donde desemboca el río a su vez está teniendo un proceso de depositación leve,
además en las fotografías aéreas actuales se puede observar barras de arcilla y arena que
están casi obstruyendo la salida normal de esta fuente de agua.
This study allowed us to determine the changes that has taken the river “Los Tintos” in 23 years (1977-2000) for which a multi-temporal analysis with the help of a Geographic Information System (GIS) was performed. The “Los Tintos” wines born of the union of the Bapado and rivers near the Zapanal Salitre sector and leads to the river Babahoyo. geological characterization of the area that was to gather information based on technical reports, theses, scientific articles, documentaries, books and information on the web was made. For the multitemporal study manually and remote sensing analyzed aerial photographs from the years 1977, 1987, 1994 and 2000, this analysis allowed us to determine the change that has taken the river “Los Tintos” and areas where there have been depositions and erosions through all these years. As a result the following analysis which in turn divided into sectors was for greater understanding was obtained. The first sector saw the birth of the river to the Boca campus Seco River, it was determined that the river has undergone major changes being geomorphologically low and in the presence of climate phenomena such as heavy rain or El Niño, the right margins and left have been flooded. The second sector ranges from Boca de Rio Seco enclosure to enclosure Boca de Caña, this stretch of the river until today presents a process of river erosion and deposition moderately mild. The third sector starts from the enclosure Boca de Caña to the river mouth red with Babahoyo, this sector includes the most important area of study, it was found that the compound Boca de Caña is currently suffering from a process of deposition, which is allowing the right bank of the river is being used for agriculture in the enclosure, while corresponding to the parish Tarifa left margin is in the process of river erosion, exposing rate to be an area highly susceptible because it is erosion phenomenon is allowing the soil is being undermined. The area where the river turn is having a slight deposition process, in addition to the current aerial photographs can be seen clay and sand bars that are almost obstructing the normal output of this source of water.
This study allowed us to determine the changes that has taken the river “Los Tintos” in 23 years (1977-2000) for which a multi-temporal analysis with the help of a Geographic Information System (GIS) was performed. The “Los Tintos” wines born of the union of the Bapado and rivers near the Zapanal Salitre sector and leads to the river Babahoyo. geological characterization of the area that was to gather information based on technical reports, theses, scientific articles, documentaries, books and information on the web was made. For the multitemporal study manually and remote sensing analyzed aerial photographs from the years 1977, 1987, 1994 and 2000, this analysis allowed us to determine the change that has taken the river “Los Tintos” and areas where there have been depositions and erosions through all these years. As a result the following analysis which in turn divided into sectors was for greater understanding was obtained. The first sector saw the birth of the river to the Boca campus Seco River, it was determined that the river has undergone major changes being geomorphologically low and in the presence of climate phenomena such as heavy rain or El Niño, the right margins and left have been flooded. The second sector ranges from Boca de Rio Seco enclosure to enclosure Boca de Caña, this stretch of the river until today presents a process of river erosion and deposition moderately mild. The third sector starts from the enclosure Boca de Caña to the river mouth red with Babahoyo, this sector includes the most important area of study, it was found that the compound Boca de Caña is currently suffering from a process of deposition, which is allowing the right bank of the river is being used for agriculture in the enclosure, while corresponding to the parish Tarifa left margin is in the process of river erosion, exposing rate to be an area highly susceptible because it is erosion phenomenon is allowing the soil is being undermined. The area where the river turn is having a slight deposition process, in addition to the current aerial photographs can be seen clay and sand bars that are almost obstructing the normal output of this source of water.