SciELO - Scientific Electronic Library Online

 
vol.65 número1Procesos erosivos en jales de la Presa I de Nacozari de García, Sonora y su efecto en la dispersión de contaminantesLos procesos colmatantes en dispositivos de gestión de la recarga de acuíferos y empleo de la termografía para su detección y estudio: Un ensayo metodológico en el acuífero "Los Arenales", España índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Boletín de la Sociedad Geológica Mexicana

versión impresa ISSN 1405-3322

Resumen

HERNANDEZ-ESPRIU, Antonio et al. Nitrate mass balance in agricultural areas of intensive fertilizer application: the North Maresme aquifer system case study (Spain). Bol. Soc. Geol. Mex [online]. 2013, vol.65, n.1, pp.39-50. ISSN 1405-3322.

Nitrate pollution is a worldwide problem in groundwater, as it may limit water supply and increase health risk when high concentrations are present. The North Maresme coastal alluvial groundwater-dependent agrosystem, one of the most heavily nitrate polluted aquifers in Spain, is located 70 km northeast from Barcelona. Field monitoring campaigns performed in this aquifer yielded nitrate concentrations up to ten times the permitted limit for drinking water suggested by the World Health Organization (50 mg/l), with a maximum concentration of 567 mg/l and a mean of 137.5 mg/l. Nitrate contamination was quantified by means of a mass balance, taking into account the main hydrogeological and anthropogenic processes that control the behavior of this ion in the aquifer, such as recharge, groundwater extraction, irrigation and fertilizer application to crops. Nitrate balance is an integrative approach for assessing nitrate loading based on linking different sources of nitrates to a groundwater balance. This methodology considers nitrate as a conservative ion because the geological-geochemical medium behaves under oxidant conditions. Results show that the studied aquifer system receives, yields and retains approximately 935, 844 and 91 tons of NO3-/year, respectively. This methodology can be applied to other nitrate-contaminated aquifers with similar conditions to improve management of fertilizers practices in areas of intensive agriculture.

Palabras llave : nitrate mass balance; nitrate contamination; groundwater balance; fertilizers; Maresme.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons