El Salvador - Groundwater research project lower basin of the rio Grande de San Miguel - Vol 3, app. 2, Hydrologic appraisal and chemical characteristics of water.

abastecimiento de agua agua almacenamiento almacenamiento de agua analytical methods approvisionnement en eau bassin versant bore boro boron chemicophysical properties data processing eau eau souterraine groundwater groundwater table hidrologia hydrologie hydrology instalaciones de almacenamiento installation de stockage irrigation meteorologia meteorologie meteorology methode methods muestreo nappe souterraine planification planning pozos precipitation procesamiento de datos puits rendement rendimiento ressource en eau riego sales salts sampling sel stockage stockage d'eau storage storage structures technique analytique temperatura temperature uso del agua utilisation de l'eau water water resources water storage water supply water use watersheds wells yields