Isotopic evidence of the origin of groundwater in arid zones Academic Article uri icon


  • Abstract ISOTOPIC EVIDENCE OF THE ORIGIN OF GROUNDWATER IN ARID ZONES. The contribution of different pathways of recharge to the groundwater in the Negev desert, the southern arid part of Israel, is examined by means of isotope and chemical signatures which are imprinted on the waters. In regions covered by sand dunes, with no perennial vegetation cover, it was found that evaporation amounts to about 30%, while 70% of the rain water infiltrates into the subsurface. In dune areas covered by deep-rooted vegetation, all water …

publication date

  • January 1, 1984