Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers
Cities depend on different ecosystems that provide them with services. In the case of water supply and effluent disposal in Argentine cities, its recognition is still incomplete and fragmented. Here is presented a first database that maps and classifies the water supply sources and effluent destinations of all Argentine cities >20000 inhabitants (in 2010). Utilizing existing reports, journalistic news and satellite information, water intake and discharge points were recorded, along with other associated infrastructure in 243 cities. It was found that 30.5, 17.5 and 12.6% of the population is exclusively supplied by large transboundary rivers, groundwater and internal rivers and streams, respectively, with 25.2% supplied by mixed sources. The cities that are connected to the public sanitation networks resort mainly to internal rivers and streams (26.6%) for their disposal; however, of the urban population that is not connected to the sewage network, a high proportion discharges into free aquifers. Most Argentine cities do not return sewage water to the same system that supplies it, predominantly transfers from underground sources to internal rivers and streams. The database evidences the contrasting ‘effluent pressure’ (population/flow rate of the receiving system) between cities linked to large rivers (e.g., Paraná basin, 273 inhabitants.m-3.s-1) and internal basins (e.g., Mar Chiquita, 16141 inhabitants.m-3.s-1). This database, open for consultation and updating, makes visible the spatial and hydrological connection between cities and the hydrographic network, helping to improve water security and prioritize efforts to protect aquatic ecosystems that guarantee it from all levels of management.
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Asociación Argentina de Ecología
2022
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Llanes, Ana L. Poca, María Jimenez, Yohana G. Castellanos, George Gómez, Bárbara M. Marchese, Mercedes Lana, Nerina B. Pascual, Miguel Albariño, Ricardo Barral, María P. Pascual, Jesús Clavijo, Araceli Díaz, Boris Pessacg, Natalia Jobbágy, Esteban G. |
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Llanes, Ana L. Poca, María Jimenez, Yohana G. Castellanos, George Gómez, Bárbara M. Marchese, Mercedes Lana, Nerina B. Pascual, Miguel Albariño, Ricardo Barral, María P. Pascual, Jesús Clavijo, Araceli Díaz, Boris Pessacg, Natalia Jobbágy, Esteban G. Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers |
| author_facet |
Llanes, Ana L. Poca, María Jimenez, Yohana G. Castellanos, George Gómez, Bárbara M. Marchese, Mercedes Lana, Nerina B. Pascual, Miguel Albariño, Ricardo Barral, María P. Pascual, Jesús Clavijo, Araceli Díaz, Boris Pessacg, Natalia Jobbágy, Esteban G. |
| author_sort |
Llanes, Ana L. |
| title |
Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers |
| title_short |
Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers |
| title_full |
Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers |
| title_fullStr |
Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers |
| title_full_unstemmed |
Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers |
| title_sort |
where does water come from and go to in cities? integrated database for 243 argentine urban centers |
| description |
Cities depend on different ecosystems that provide them with services. In the case of water supply and effluent disposal in Argentine cities, its recognition is still incomplete and fragmented. Here is presented a first database that maps and classifies the water supply sources and effluent destinations of all Argentine cities >20000 inhabitants (in 2010). Utilizing existing reports, journalistic news and satellite information, water intake and discharge points were recorded, along with other associated infrastructure in 243 cities. It was found that 30.5, 17.5 and 12.6% of the population is exclusively supplied by large transboundary rivers, groundwater and internal rivers and streams, respectively, with 25.2% supplied by mixed sources. The cities that are connected to the public sanitation networks resort mainly to internal rivers and streams (26.6%) for their disposal; however, of the urban population that is not connected to the sewage network, a high proportion discharges into free aquifers. Most Argentine cities do not return sewage water to the same system that supplies it, predominantly transfers from underground sources to internal rivers and streams. The database evidences the contrasting ‘effluent pressure’ (population/flow rate of the receiving system) between cities linked to large rivers (e.g., Paraná basin, 273 inhabitants.m-3.s-1) and internal basins (e.g., Mar Chiquita, 16141 inhabitants.m-3.s-1). This database, open for consultation and updating, makes visible the spatial and hydrological connection between cities and the hydrographic network, helping to improve water security and prioritize efforts to protect aquatic ecosystems that guarantee it from all levels of management. |
| publisher |
Asociación Argentina de Ecología |
| publishDate |
2022 |
| url |
https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2028 |
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rev-ecoaus-article-20282023-11-02T15:27:38Z Where does water come from and go to in cities? Integrated database for 243 Argentine urban centers ¿De dónde viene y a dónde va el agua de las ciudades? Base de datos integrada para 243 centros urbanos argentinos Llanes, Ana L. Poca, María Jimenez, Yohana G. Castellanos, George Gómez, Bárbara M. Marchese, Mercedes Lana, Nerina B. Pascual, Miguel Albariño, Ricardo Barral, María P. Pascual, Jesús Clavijo, Araceli Díaz, Boris Pessacg, Natalia Jobbágy, Esteban G. Argentina, drinking water effluent hydrologic ecosystem services urban hydrosystems water transfer agua potable Argentina efluentes Hidrosistemas Urbanos servicios ecosistémicos hídricos trasvase de agua Cities depend on different ecosystems that provide them with services. In the case of water supply and effluent disposal in Argentine cities, its recognition is still incomplete and fragmented. Here is presented a first database that maps and classifies the water supply sources and effluent destinations of all Argentine cities >20000 inhabitants (in 2010). Utilizing existing reports, journalistic news and satellite information, water intake and discharge points were recorded, along with other associated infrastructure in 243 cities. It was found that 30.5, 17.5 and 12.6% of the population is exclusively supplied by large transboundary rivers, groundwater and internal rivers and streams, respectively, with 25.2% supplied by mixed sources. The cities that are connected to the public sanitation networks resort mainly to internal rivers and streams (26.6%) for their disposal; however, of the urban population that is not connected to the sewage network, a high proportion discharges into free aquifers. Most Argentine cities do not return sewage water to the same system that supplies it, predominantly transfers from underground sources to internal rivers and streams. The database evidences the contrasting ‘effluent pressure’ (population/flow rate of the receiving system) between cities linked to large rivers (e.g., Paraná basin, 273 inhabitants.m-3.s-1) and internal basins (e.g., Mar Chiquita, 16141 inhabitants.m-3.s-1). This database, open for consultation and updating, makes visible the spatial and hydrological connection between cities and the hydrographic network, helping to improve water security and prioritize efforts to protect aquatic ecosystems that guarantee it from all levels of management. Las ciudades dependen de distintos ecosistemas que les proveen servicios. Para el caso de la provisión de agua potable y la disposición de aguas servidas en las ciudades argentinas, el reconocimiento de esto aún es incompleto y fragmentado. Aquí presentamos la primera base de datos que mapea y clasifica las fuentes de suministro de agua y destinos de los efluentes de todas las ciudades argentinas con más 20000 habitantes (en 2010). A partir de reportes existentes, noticias periodísticas e información satelital se registraron en 243 ciudades los puntos de toma y vertido de aguas, junto a otra infraestructura asociada. Se encontró que 30.5, 17.5 y 12.6% de la población se abastece sólo de grandes ríos transfronterizos, agua subterránea y ríos y arroyos internos, respectivamente, con 25.2% abastecido por fuentes mixtas. Las ciudades que están conectadas a las redes públicas de saneamiento recurren para su disposición sobre todo a ríos y arroyos internos (26.6%); sin embargo, de la población urbana que no está conectada a la red cloacal, una proporción elevada dispone sus vertidos en acuíferos libres. La mayoría de las ciudades argentinas no devuelven las aguas de saneamiento al mismo sistema que las provee, y predominan los trasvases desde fuentes subterráneas hacia ríos y arroyos internos. La base de datos evidencia la contrastante ‘presión efluente’ (relación población/caudal del sistema receptor) entre ciudades vinculadas a grandes ríos (e.g., la cuenca del Paraná, con 273 habitantes.m-3.s-1) y a cuencas internas (e.g., la cuenca de Mar Chiquita, con 16141 habitantes.m-3.s-1). Esta base de datos, abierta para la consulta y actualización, visibiliza la conexión espacial e hidrológica entre las ciudades y la red hidrográfica, y contribuye a mejorar la seguridad hídrica y a priorizar los esfuerzos de protección de los ecosistemas acuáticos que la garantizan desde todos los niveles de gestión. Asociación Argentina de Ecología 2022-12-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículos application/pdf application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2028 10.25260/EA.22.32.3.0.2028 Ecología Austral; Vol. 32 No. 3 (2022): December 2022. Pages 821-1149; 1133-1149 Ecología Austral; Vol. 32 Núm. 3 (2022): December 2022. Pages 821-1149; 1133-1149 0327-5477 1667-7838 spa https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2028/1332 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2028/1333 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2028/1334 Derechos de autor 2022 Ana L. Llanes, María Poca, Yohana G. Jimenez, George Castellanos, Bárbara M. Gómez, Mercedes Marchese, Nerina B. Lana, Miguel Pascual, Ricardo Albariño, María P. Barral, Jesús Pascual, Araceli Clavijo, Boris Díaz, Natalia Pessacg, Esteban G. Jobbágy https://creativecommons.org/licenses/by/3.0/ |