Combined estimation of specific yield and natural recharge in a semi-arid groundwater basin with irrigated agriculture
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TLDR
In this paper, a water budget approach is developed to jointly estimate specific yield and natural recharge in an unconfined aquifer with significant seasonal water table fluctuations Water table fluctuations are due to distinct seasonality in groundwater recharge.About:
This article is published in Journal of Hydrology.The article was published on 2006-09-30 and is currently open access. It has received 263 citations till now. The article focuses on the topics: Groundwater recharge & Depression-focused recharge.read more
Figures
Figure 1. (a) Maheshwaram watershed (53 km 2 
Table 16. Ground water balance during two hydrological cycles 706 
Table 15. Estimation of recharge types ( 1 
Table 14. Ground water balance during monsoon seasons, estimation of natural recharge and absolute 698 errors 699 
Table 13. Ground water budget during the Rabi seasons, estimation of specific yield and absolute 694 errors 695 
Table 11. Seasonal irrigation return flow coefficients (CRF=RF/PG) and absolute errors for paddy fields 686 (rice) and vegetable and flower fields from June 2002 to June 2004. CRF_Total: for all ground water 687 abstraction, i.e.: rice, vegetables, flowers, fruit, grapes, domestic and poultries. 688
Citations
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A generalized 3-D geological and hydrogeological conceptual model of granite aquifers controlled by single or multiphase weathering
TL;DR: In this article, the structure and hydrodynamic properties of the weathering profile of a granitic area (53 km2 Maheshwaram catchment, state of Andhra Pradesh, India) were characterized in detail and mapped from observations on outcrops, 80 vertical electric soundings and lithologs from 45 borewells in which flowmeter measurements and injection tests were also performed to characterize the hydraulic conductivities of the conductive fissure zones.
Journal ArticleDOI
A comparative evaluation of groundwater suitability for irrigation and drinking purposes in two intensively cultivated districts of Punjab, India
TL;DR: In this article, the authors highlight temporal variations of the groundwater quality and compare its suitability for irrigation and drinking purpose in these two districts and investigate perception of villagers on taste and odour.
Journal ArticleDOI
The fracture permeability of Hard Rock Aquifers is due neither to tectonics, nor to unloading, but to weathering processes
TL;DR: In this article, the authors demonstrate how the hydraulic conductivity of HRAs is a consequence of the weathering processes, with a stratiform fissured layer located immediately below the unconsolidated saprolite and, to a lesser extent, a verticalized fissure layer at the periphery of (or within) pre-existing discontinuities (veins, joints, ancient faults, lithological contacts, etc).
Journal ArticleDOI
A Global Analysis of Groundwater Recharge for Vegetation, Climate, and Soils
John H. Kim,Robert B. Jackson +1 more
TL;DR: In this article, the authors analyzed >600 estimates of groundwater recharge to obtain the first global analysis of recharge and vegetation types Globally, croplands had the highest proportion of water input (WI = precipitation + irrigation) that become recharge, followed by grasslands, woodlands, and scrublands (average proportional recharge: 011, 008, 006, and 005, respectively; P < 00001).
Journal ArticleDOI
Compartmentalization of physical and chemical properties in hard-rock aquifers deduced from chemical and groundwater age analyses
Virginie Ayraud,Luc Aquilina,Thierry Labasque,Hélène Pauwels,Jérôme Molénat,Anne-Catherine Pierson-Wickmann,Véronique Durand,Olivier Bour,Corinne Tarits,Pierre Le Corre,Elise Fourré,Philippe Merot,Philippe Davy +12 more
TL;DR: In this article, a hydrogeochemical model for hard-rock aquifers is presented, based on CFC analysis and geochemical data obtained from seven sites in Brittany (France).
References
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Crop evapotranspiration : guidelines for computing crop water requirements
TL;DR: In this paper, an updated procedure for calculating reference and crop evapotranspiration from meteorological data and crop coefficients is presented, based on the FAO Penman-Monteith method.
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World atlas of desertification.
Nick Middleton,David S.G. Thomas +1 more
TL;DR: In this paper, the authors summarize the state of scientific knowledge on the drylands of the globe and explore the current stage of understanding of desertification as well as its extent and possible solutions, arguing that desertification is one of the world's most pressing environmental problems and that it is a global issue which is accelerating.
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Using groundwater levels to estimate recharge
Richard W. Healy,Peter G. Cook +1 more
TL;DR: A review of methods that are based on groundwater-level data is presented in this article, where the theory underlying the methods is explained and examples from the literature are used to illustrate applications of the different methods.
Journal ArticleDOI
Groundwater recharge: an overview of processes and challenges
Jacobus J. de Vries,Ian Simmers +1 more
TL;DR: In this article, the authors summarized current understanding of recharge processes, identified recurring rechargeevaluation problems, and reported on some recent advances in estimation techniques for (semi-)arid regions.