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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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
Origin of sulphate in the unsaturated zone and groundwater of a loess aquifer
Yin Long,Tianming Huang,Tianming Huang,Fen Zhang,Zhenbin Li,Baoqiang Ma,Yiman Li,Zhonghe Pang +7 more
Journal ArticleDOI
Groundwater Recharge Level Estimation from Rainfall Record Probability Match Methodology
Zekâi Şen,Zekâi Şen +1 more
TL;DR: In this article, a probabilistic correlation between rainfall and groundwater level fluctuation is presented. But the authors do not consider the effect of precipitation features on the probability distribution function (PDF) model.
Dissertation
Groundwater occurrence and risk of pollution in a mountain watershed of Nicaragua
TL;DR: In this paper, the authors applied hydrographic and geophysical methods in the Rio Artiguas watershed, a mountain basin located in central Nicaragua, to characterise the hydrogeological conditions in the basin with emphasis on understanding the possible connections between streams and groundwater.
Journal ArticleDOI
Groundwater recharge mechanisms on the Loess Plateau of China: New evidence for the significance of village ponds
TL;DR: Li et al. as discussed by the authors measured environmental tracers (2H, 18O, Cl-) in rainwater, groundwater, and pore waters of the deep unsaturated zone under three land-cover types (cropland, a village pond, and two apple orchards with stand ages of 10 and 27 years).
Book ChapterDOI
Groundwater Modelling in Arid and Semi-Arid Areas: Conceptual models for recharge sequences in arid and semi-arid regions using isotopic and geochemical methods
TL;DR: The importance of groundwater quality issues in semi-arid and arid regions was highlighted in this paper, where water quality issues are assumed to assume major importance in semiarid areas, since scarce reserves of groundwater are under threat due to accelerated development and direct human impacts.
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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Chloride concentration in groundwater, recharge rate and rate of deposition of chloride in the Israel Coastal Plain
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