caa a22 4500 445814543 CHVBK 20180317145222.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10040-010-0652-7 doi (NATIONALLICENCE)springer-10.1007/s10040-010-0652-7 Review: Environmental tracers in arid-zone hydrology [Elektronische Daten] [Andrew Herczeg, F. Leaney] Revue: Traceurs environnementaux en hydrologie des zones arides Application of environmental tracers to arid-zone hydrology over the past several decades is reviewed, with particular reference to the Australian continent. Some notable successes in the application of stable and radio-isotopes include identifying arid-zone groundwater as palaeowaters, understanding the importance of episodicity and of large flood events to recharge, and delineating sources of water to vegetation. Estimating the rates of recharge and discharge have relied to a large extent on chloride and tritium profiles in the unsaturated zone, while radiocarbon and chlorine-36 are used to estimate horizontal flow rates. A number of new research opportunities are suggested. Improved understanding of processes that modify isotopic signatures at the interface zones such as the upper 5m of the soil zone, the capillary zone, and the discharge zone, are needed to better quantify water fluxes across these zones. Furthermore, linkages between the atmosphere-soil-water-vegetation continuum although qualitatively understood, elude quantitative transfer to a scale commensurate with basin-scale groundwater management. The new generation of improved and more robust stable isotope and radiometric dating techniques, will be invaluable in advancing the science and its application to better management of meagre water resources in dry parts of the world. Springer-Verlag, 2010 Australia nationallicence Review nationallicence Environmental tracers nationallicence Groundwater recharge nationallicence Arid zone nationallicence Herczeg Andrew CSIRO Land and Water, Private Bag 2, 5064, Glen Osmond, SA, Australia aut Leaney F. CSIRO Land and Water, Private Bag 2, 5064, Glen Osmond, SA, Australia aut Hydrogeology Journal Springer-Verlag 19/1(2011-02-01), 17-29 1431-2174 19:1<17 2011 19 10040 https://doi.org/10.1007/s10040-010-0652-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-010-0652-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Herczeg Andrew CSIRO Land and Water, Private Bag 2, 5064, Glen Osmond, SA, Australia aut NATIONALLICENCE 700 1- Leaney F. CSIRO Land and Water, Private Bag 2, 5064, Glen Osmond, SA, Australia aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/1(2011-02-01), 17-29 1431-2174 19:1<17 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer