Basis to study the alterations of the hydrological regime and its ecological importance in Argentina
In this work, we propose the bases for assessing the ecohydrological changes resulting from direct and indirect human activities at a regional scale in Argentina. The climatic, morphological and geological diversity of the territory is manifested in different ecoregions and in a high diversity of lotic and lentic environments which are closely linked to the water systems. Daily flows, groundwater levels, flooded surfaces or hydrometric heights have different influences depending on the ecoregion considered in each water system. The historical hydrological information with continuity and records with a sufficient extension for the analysis of the alterations of the hydrological regime are relatively scarce and restricted to 163 measuring stations. The application of a conceptual model for the analysis of hydrological alterations is proposed, followed by the study of temporal variations in the hydrological and morphological conditions prior to the anthropic activity (pre-impact), to then consider the new hydrological-ecological situation (post-impact), on the basis of which appropriate measures should be adopted to mitigate the ecological damage when they occur. Although there are various methodologies to conduct this analysis, considering the availability of current data in Argentina, we propose the use of the methodological framework based on the ELOHA (Ecological Limit of Hydrological Alteration) concept for the analysis of hydrological alterations. Although the holistic method provides the best results and the least uncertainty, considering the heterogeneity, scarcity and lack of continuity of hydrological records at a general level, the proposed technique could be a good approximation at a regional scale. It is concluded that it will be necessary to adapt the methodological bases and analysis techniques to this condition in order to create a database for the strategic planning of water resources in Argentina.
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Asociación Argentina de Ecología
2022
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| Online Access: | https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1219 |
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Rodrigues Capítulo, Leandro Espínola, Luis Yoya, Federico Gaspari, Fernanda Mazzucchelli, Gabriela Kruse, Eduardo |
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Rodrigues Capítulo, Leandro Espínola, Luis Yoya, Federico Gaspari, Fernanda Mazzucchelli, Gabriela Kruse, Eduardo Basis to study the alterations of the hydrological regime and its ecological importance in Argentina |
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Rodrigues Capítulo, Leandro Espínola, Luis Yoya, Federico Gaspari, Fernanda Mazzucchelli, Gabriela Kruse, Eduardo |
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Rodrigues Capítulo, Leandro |
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Basis to study the alterations of the hydrological regime and its ecological importance in Argentina |
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Basis to study the alterations of the hydrological regime and its ecological importance in Argentina |
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Basis to study the alterations of the hydrological regime and its ecological importance in Argentina |
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Basis to study the alterations of the hydrological regime and its ecological importance in Argentina |
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Basis to study the alterations of the hydrological regime and its ecological importance in Argentina |
| title_sort |
basis to study the alterations of the hydrological regime and its ecological importance in argentina |
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In this work, we propose the bases for assessing the ecohydrological changes resulting from direct and indirect human activities at a regional scale in Argentina. The climatic, morphological and geological diversity of the territory is manifested in different ecoregions and in a high diversity of lotic and lentic environments which are closely linked to the water systems. Daily flows, groundwater levels, flooded surfaces or hydrometric heights have different influences depending on the ecoregion considered in each water system. The historical hydrological information with continuity and records with a sufficient extension for the analysis of the alterations of the hydrological regime are relatively scarce and restricted to 163 measuring stations. The application of a conceptual model for the analysis of hydrological alterations is proposed, followed by the study of temporal variations in the hydrological and morphological conditions prior to the anthropic activity (pre-impact), to then consider the new hydrological-ecological situation (post-impact), on the basis of which appropriate measures should be adopted to mitigate the ecological damage when they occur. Although there are various methodologies to conduct this analysis, considering the availability of current data in Argentina, we propose the use of the methodological framework based on the ELOHA (Ecological Limit of Hydrological Alteration) concept for the analysis of hydrological alterations. Although the holistic method provides the best results and the least uncertainty, considering the heterogeneity, scarcity and lack of continuity of hydrological records at a general level, the proposed technique could be a good approximation at a regional scale. It is concluded that it will be necessary to adapt the methodological bases and analysis techniques to this condition in order to create a database for the strategic planning of water resources in Argentina. |
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Asociación Argentina de Ecología |
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2022 |
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https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1219 |
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rev-ecoaus-article-12192023-11-02T16:20:44Z Basis to study the alterations of the hydrological regime and its ecological importance in Argentina Bases para estudiar las alteraciones del régimen hidrológico y su importancia ecológica en la Argentina Rodrigues Capítulo, Leandro Espínola, Luis Yoya, Federico Gaspari, Fernanda Mazzucchelli, Gabriela Kruse, Eduardo aquatic ecosystems ecoregions hydrological time series ecohydrology ecosistemas acuáticos ecorregiones series temporales hidrológicas ecohidrología In this work, we propose the bases for assessing the ecohydrological changes resulting from direct and indirect human activities at a regional scale in Argentina. The climatic, morphological and geological diversity of the territory is manifested in different ecoregions and in a high diversity of lotic and lentic environments which are closely linked to the water systems. Daily flows, groundwater levels, flooded surfaces or hydrometric heights have different influences depending on the ecoregion considered in each water system. The historical hydrological information with continuity and records with a sufficient extension for the analysis of the alterations of the hydrological regime are relatively scarce and restricted to 163 measuring stations. The application of a conceptual model for the analysis of hydrological alterations is proposed, followed by the study of temporal variations in the hydrological and morphological conditions prior to the anthropic activity (pre-impact), to then consider the new hydrological-ecological situation (post-impact), on the basis of which appropriate measures should be adopted to mitigate the ecological damage when they occur. Although there are various methodologies to conduct this analysis, considering the availability of current data in Argentina, we propose the use of the methodological framework based on the ELOHA (Ecological Limit of Hydrological Alteration) concept for the analysis of hydrological alterations. Although the holistic method provides the best results and the least uncertainty, considering the heterogeneity, scarcity and lack of continuity of hydrological records at a general level, the proposed technique could be a good approximation at a regional scale. It is concluded that it will be necessary to adapt the methodological bases and analysis techniques to this condition in order to create a database for the strategic planning of water resources in Argentina. En este trabajo se plantean las bases metodológicas para evaluar los cambios antrópicos que afectan las condiciones ecohidrológicas a una escala regional en la Argentina. La diversidad climática, morfológica y geológica del territorio se manifiesta en diferentes ecorregiones y en una diversidad elevada de ambientes lóticos y lénticos ligados a los sistemas hídricos. Los caudales diarios, los niveles freáticos, las superficies anegadas o las alturas hidrométricas tienen distinta influencia según la ecorregión considerada en cada sistema hídrico. La información hidrológica histórica con continuidad y los registros con una extensión suficiente para analizar las alteraciones del régimen hidrológico son relativamente escasos y se restringen a 163 estaciones de medición. Se plantea aplicar un modelo conceptual para analizar las alteraciones hidrológicas, seguido del estudio de las variaciones temporales en las condiciones hidrológicas y morfológicas previas a la actividad antrópica (preimpacto), para luego considerar la nueva situación hidrológica-ecológica (post-impacto), a partir de las que se deberán adoptar las medidas apropiadas para mitigar los daños ecológicos cuando se produzcan. Aunque existen diversas metodologías para realizar dicho análisis, considerando la disponibilidad de datos actuales en la Argentina, se propone emplear el marco metodológico fundamentado en el concepto ELOHA (Ecological Limit of Hydrological Alteration) para analizar las alteraciones hidrológicas. Si bien el método holístico brinda mejores resultados y menor incertidumbre, considerando la heterogeneidad, la escasez y la falta de continuidad de registros hidrológicos a nivel general, la técnica propuesta podría resultar una buena aproximación a escala regional. Se concluye que será necesario adaptar las bases metodológicas y las técnicas de análisis a tal condición para crear una base de datos para planificar estratégicamente los recursos hídricos en la Argentina. Asociación Argentina de Ecología 2022-06-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1219 10.25260/EA.22.32.1.1.1219 Ecología Austral; Vol. 32 No. 1-bis (2022): April 2022. Pages 195-296; 273-296 Ecología Austral; Vol. 32 Núm. 1-bis (2022): April 2022. Pages 195-296; 273-296 0327-5477 1667-7838 spa https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1219/1216 Derechos de autor 2022 Leandro Rodrigues Capítulo, Luis Espínola, Federico Yoya, Fernanda Gaspari, Gabriela Mazzucchelli, Eduardo Kruse https://creativecommons.org/licenses/by/3.0/ |