Resumo

MONROY RAMIREZ, Juan Camilo; ESPINOSA RAMIREZ, Adriana Janneth  e  JIMENEZ AVELLA, Wilson Alejandro. Local Hydro-Climatology and Impacts on Sochagota Lake, Paipa, Boyacá. Cienc. Ing. Neogranad. [online]. 2021, vol.31, n.1, pp.53-72.  Epub 23-Jul-2021. ISSN 0124-8170.  https://doi.org/10.18359/rcin.5068.

Lake Sochagota is a built system that acts as an oxidation pond. Its level Is regulated. It has an outcrop of thermo-mineral water, and receives runoffs from acid sulphated soils and a portion of fresh water from the Chicamocha river. It discharges in the irrigation district of Usochicamocha. By increasing the concentration of thermo-mineral salts, the system comes into tension, as high salinity threatens biodiversity and becomes a source of conflict over water use in the basin. This paper shows conductivity, thirty-year precipitation and bathymetry data, processed, analyzed and modeled, to present temporal (dry and wet contrasting periods) and spatial variability. Similarly, ecotoxicity tests were conducted to demonstrate the possible effects of salinization on the ecosystem, biota and risks associated with changes in hydro-climatology in the area. The results indicate that the lake is highly sensitive to decreases in precipitation that favor the accumulation of hydrothermal salts from its basin and outcrops, which accentuates cultural eutrophication, this can lead to phenomena that affect the ecosystem and the agricultural potential of the zone of influence.

Palavras-chave : Ecotoxicology; hydro-climatology; ecological impact; Lake Sochagota; thermo-mineral.

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