Insights on the hydrological cycle and its interaction with anthropic pressures: the Katari basin and minor Titicaca lake

Author:

Criollo Manjarrez Rotman A.ORCID,Scheiber LauraORCID,Poza Laura,Valdivielso Mijangos SoniaORCID,Simunovic Pedro,Vázquez-Suñé EnricORCID

Abstract

Abstract. The hydrologic cycle behaviour in the Bolivian Altiplano and how it interacts with human activity are still not fully understood. The hydraulic cycle is examined in a novel way in this work by considering extended time series of associated hydrologic and climatic data. Results show that human exploitation and losses from the sewage and water supply networks in the urban areas might cause an hydraulic imbalance in the region. These anthropogenic incomes, at the same time, increase concentrations of different pollutants. Water isotopic analysis reinforces the conceptual model showing that the groundwater sampled are mainly from precipitation. Workshops with local municipalities supported and defined the most relevant anthropic pressures in the basin. This information supports a vulnerability analysis in collaboration among them. The decision-making process for government entities might be strengthened by this study, which would help to develop long-term strategies to prevent and mitigate the issues found in the evaluation of water vulnerability in the region.

Publisher

Copernicus GmbH

Subject

General Chemical Engineering

Reference34 articles.

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3. Autoridad binacional autonoma del sistema hidrico, lago Titicaca, rio Desaguadero, lago Poopó (COIPASA): Programa SIGAR, Sistema Integral de Gestión de Aguas Residuales, Diagnóstico y Categorización de los Sistemas de Tratamiento de Aguas Residuales en el anillo Circunlacustre del Lago Titicaca, Bolivia [Autonomous binational authority of the water system, Lake Titicaca, Desaguadero River, Lake Poopó (COIPASA): SIGAR program, Comprehensive Wastewater Management System, Diagnosis and Categorization of the Wastewater Treatment Systems in the Circumlacustrine Ring of Lake Titicaca. Bolivia], 2014.

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