Journal ArticleDOI
The use of environmental chloride and tritium to estimate total recharge to an unconfined aquifer
GB Allison,MW Hughes +1 more
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In this article, a portion of the Gambier plain underlain by an unconfined aquifer with readily definable hydrologic boundaries has been divided into a number of areas within which soil types have similar hydrological properties, and mean annual recharge has been estimated for each area using both the tritium concentration and the chloride concentration of water within the soil profile.Abstract:
A portion of the Gambier Plain underlain by an unconfined aquifer with readily definable hydrologic boundaries has been divided into a number of areas within which soil types have similar hydrologic properties. Mean annual recharge has been estimated for each area using both the tritium concentration and the chloride concentration of water within the soil profile. Good agreement was obtained between the two methods with local recharge varying between 50 and 250 mm year-1. Total mean annual recharge for the area has been estimated to be 2.4 ± 0.3 x 108 m3 year-1, and this compares favourably with an estimated discharge of 2.5 ± 0.3 x 108 m3 year-1.read more
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Comparative estimation of the potential groundwater recharge in Al Zerba catchment of Aleppo basin, Syria
Rudy Abo,Broder J. Merkel +1 more
TL;DR: In this paper, the authors assess the natural groundwater recharge in Al Zerba catchment and the interaction between the surface and groundwater, and show that groundwater pumping leads negative impact to long-term decrease in groundwater levels, particularly in the dry season, while no significant effects of vegetation on groundwater were observed.
Journal ArticleDOI
Tracing the Sources and Fate of NO3- in the Vadose Zone-Groundwater System of a Thousand-Year-Cultivated Region.
TL;DR: In this article , the authors investigated the sources and fate of NO3- in the vadose zone and groundwater in the Guanzhong Plain in the Yellow River Basin of China for over 1000 years.
Journal ArticleDOI
The Impact of Climate Change on the Chemical Composition of Deep Vadose Zone Waters
TL;DR: In this paper, it has been inferred that a very rich archive of climate change history is preserved in these vadose zone waters and that these records may extend back more than 100 000 yr.
Dissertation
Approches géochimique et hydrodynamique de la recharge de la nappe du Trarza, Sud-Ouest de la Mauritanie
TL;DR: In this paper, a double approche geochimique (18O, 2H, 14C, 13 C) and hydrodynamique is proposed for recharge of the nappe.
References
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Journal ArticleDOI
Photometric determination of chlorides in water.
Journal ArticleDOI
Chloride concentration in groundwater, recharge rate and rate of deposition of chloride in the Israel Coastal Plain
Erik Eriksson,Vachi Khunakasem +1 more
TL;DR: In this article, a study of the possibility of using chloride concentrations in groundwater for estimating recharge rates is described, the application being demonstrated on available data from the Coastal Plain Aquifer in Israel.
Journal ArticleDOI
Chloride balance of some farmed and forested catchments in southwestern Australia
A. J. Peck,D. H. Hurle +1 more
TL;DR: In this paper, the authors estimate that removal of forest vegetation from forested catchments has increased groundwater discharge of whole catchments by amounts ranging from about 1 to 13 cm3/cm2yr, and the characteristic times for equilibrium of chloride input and loss on farmed catchments are estimated to range from 30 to 400 years.
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