Publicación: ESTUDIO HIDROGEOLOGICO E HIDROGEOQUIMICO EN EL MUNICIPIO DE MANI DEPARTAMENTO DE CASANARE
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Universidad Industrial de Santander
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La geología, la hidrogeología y la hidrogeoquímica juegan un papel fundamental en la evaluación de pozos y aljibes de agua, especialmente en municipios como Maní debido a que en épocas de baja precipitación no se cuenta con recursos hídricos sostenibles. El sistema hidrogeológico del municipio de Maní se halla determinado por depósitos de porosidad primaria de gran interés. No obstante, dada la inexactitud y precario análisis que se le ha efectuado al acuífero se hace necesario desarrollar el presente estudio ya que los pozos y aljibes se construyen en condiciones artesanales y sin ningún apoyo técnico y profesional. Es importante resaltar que el municipio de Maní no cuenta con sistema de alcantarillado, de tal forma que el recurso hídrico subterráneo se ve altamente vulnerado a la contaminación, para lo cual se ha analizado la evolución temporal y espacial del acuífero por intermedio de mapas piezométricos en épocas de baja y alta precipitación. La evaluación hidrogeoquímica cobra mayor relevancia para confirmar las posibles conexiones hidráulicas agua superficial - subterránea, identificando las condiciones químicas y su comportamiento en los depósitos y formaciones geológicas del Pie de monte Llanero. Los altos contenidos de PO4 y la presencia de As se deben principalmente a la actividad agrícola que utiliza gran cantidad de pesticidas, fertilizantes e insecticidas.
Palabras claves: Agua subterránea, hidrogeoquímica, piezometría y geofísica.
Geology, Hydrogeology and Hydrogeochemistry play a crucial role in the evaluation of wells and cisterns for drinking water especially in municipalities like Maní because in times of low rainfall has not been sustainable water resources. Maní hydrogeological system is determined by interesting primary porosity reservoirs. However, given the inaccuracy and poor analysis that has been done to the aquifer is necessary to develop this study because the wells and cisterns were built in craft conditions without any professional and technical support. It´s important to emphasize that Maní has no a sewer system, so the groundwater resources are highly vulnerable to contamination, which has been analyzed for the temporal and spatial evolution of the aquifer through piezometers maps in times of low and high precipitation. Hydrogeochemistry evaluation becomes more important to confirm the possible hydraulic connections surface water - groundwater, identifying chemical conditions and their behavior in the deposits and geological formations from the Pie de monte Llanero. High PO4 levels and the presence of As are mainly due to agricultural activities using large amounts of pesticides, fertilizers and insecticides. Keywords: Groundwater, hydrogeochemistry, piezometry and geophysics.
Geology, Hydrogeology and Hydrogeochemistry play a crucial role in the evaluation of wells and cisterns for drinking water especially in municipalities like Maní because in times of low rainfall has not been sustainable water resources. Maní hydrogeological system is determined by interesting primary porosity reservoirs. However, given the inaccuracy and poor analysis that has been done to the aquifer is necessary to develop this study because the wells and cisterns were built in craft conditions without any professional and technical support. It´s important to emphasize that Maní has no a sewer system, so the groundwater resources are highly vulnerable to contamination, which has been analyzed for the temporal and spatial evolution of the aquifer through piezometers maps in times of low and high precipitation. Hydrogeochemistry evaluation becomes more important to confirm the possible hydraulic connections surface water - groundwater, identifying chemical conditions and their behavior in the deposits and geological formations from the Pie de monte Llanero. High PO4 levels and the presence of As are mainly due to agricultural activities using large amounts of pesticides, fertilizers and insecticides. Keywords: Groundwater, hydrogeochemistry, piezometry and geophysics.