Journal ArticleDOI
The use of environmental chloride and tritium to estimate total recharge to an unconfined aquifer
GB Allison,MW Hughes +1 more
TLDR
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
Citations
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Journal ArticleDOI
Recharge beneath a Banksia woodland and a Pinus pinaster plantation on coastal deep sands in south Western Australia
P. Farrington,G.A. Bartle +1 more
TL;DR: In this paper, a three-year period (1985-1988) in a Banksia woodland and a dense Pinus pinaster plantation growing on deep sandy soils in the northern Swan Coastal Plain was studied.
Journal ArticleDOI
Experimental evidence of deep infiltration under sandy flats and gullies in the Sahel
Luc Descroix,Jean-Paul Laurent,Michel Vauclin,Okechukwu Amogu,Stéphane Boubkraoui,B. Ibrahim,Sylvie Galle,Bernard Cappelaere,S. Bousquet,Ibrahim Mamadou,E. Le Breton,Thierry Lebel,Guillaume Quantin,David Ramier,Nicolas Boulain +14 more
TL;DR: In this article, the authors investigated whether other areas of the Sahelian region could also be defined as deep infiltration ones as well, and then, whether they were contributing to aquifer recharge.
Journal ArticleDOI
Understanding recharge in soil-groundwater systems in high loess hills on the Loess Plateau using isotopic data.
TL;DR: Wang et al. as mentioned in this paper investigated the mechanisms governing loess groundwater and soil water recharge in these relatively arid to semiarid higher loess hills on the basis of temporal soil profiles and found that during the four monitoring periods, the distinct variations of soil water and Cl contents in soil water at different times in the upper parts of loess profiles, particularly the increasing water content after the rainy season above 7.5 m, indicate that temporal precipitation can at least infiltrate to 7.4 m in depth.
Journal ArticleDOI
Borehole Environmental Tracers for Evaluating Net Infiltration and Recharge through Desert Bedrock
TL;DR: In this article, tracers from boreholes were used to investigate net infiltration and recharge to the fractured Navajo Sandstone aquifer, and the results indicated a cyclical net-infiltration and recharge pattern with higher rates earlier in the Holocene and lower rates during the late Holocene.
Journal ArticleDOI
Hand dug wells in Namibia: An underestimated water source or a threat to human health?
Heike Wanke,A. Nakwafila,Josefina Hamutoko,Christoph Lohe,F. Neumbo,I. Petrus,A. David,H. Beukes,N. Masule,Martin Quinger +9 more
TL;DR: The water quality of these wells is usually not monitored or controlled, thus a study has been carried out in four study areas in Namibia: southern Omusati/Oshana area, Okongo/Ohangwena area, Omatjete/Omaruru area, and Okanguati/Kunene area.
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.
Related Papers (5)
Chloride concentration in groundwater, recharge rate and rate of deposition of chloride in the Israel Coastal Plain
Erik Eriksson,Vachi Khunakasem +1 more