Groundwater recharge in natural dune systems and agricultural ecosystems in the Thar Desert region, Rajasthan, India

Scanlon, Bridget R.; Mukherjee, Abhijit; Gates, John B.; Reedy, R. C.; Sinha, A. K.

doi:10.1007/s10040-009-0555-7

Cited by 61 publications

(37 citation statements)

References 38 publications

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“…In the CMB method the following assumptions must be satisfied (Tyler et al 1996;Ma and Edmunds 2006;Gates et al 2008;Scanlon et al 2010). The water recharge is solely from precipitation without the influence of run-on and runoff.…”

Section: Methods For Recharge and Chronology Calculation And Chloridementioning

confidence: 99%

“…Among the geochemical tracers in arid and semi-arid region unsaturated zones, chloride has been the most widely employed chemical marker (Scanlon et al 2006). The chloride mass balance (CMB) technique was usually used to estimate diffuse recharge in the past (e.g., Allison and Hughes 1978;Scanlon 1991;Edmunds and Gaye 1994;Bromley et al 1997;Ng et al 2009;Scanlon et al 2010). As part of regional hydrological cycles groundwater is under the control of the local climate (Chen et al 2004;Ali et al 2012) and changes in climate may alter the recharge process and subsequently impact groundwater resources (Jyrkama and Sykes 2007).…”

Section: Introductionmentioning

confidence: 99%

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Groundwater Diffuse Recharge and its Response to Climate Changes in Semi-Arid Northwestern China

Deng¹,

Wang²,

Cai³

et al. 2015

Terr. Atmos. Ocean. Sci.

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Understanding the processes and rates of groundwater recharge in arid and semi-arid areas is crucial for utilizing and managing groundwater resources sustainably. We obtained three chloride profiles of the unsaturated-zone in the desert/loess transition zone of northwestern China and reconstructed the groundwater recharge variations over the last 11, 21, and 37 years, respectively, using the generalized chloride mass balance (GCMB) method. The average recharge rates were 43.7, 43.5, and 45.1 mm yr -1 , respectively, which are similar to those evaluated by the chloride mass balance (CMB) or GCMB methods in other semi-arid regions. The results indicate that the annual recharge rates were not in complete linear proportion to the corresponding annual precipitations, although both exhibited descending tendencies on the whole. Comparisons between the daily precipitation aggregate at different intensity and recharge rates reveal that the occurrence of relatively heavy daily precipitation per year may contribute to such nonlinearity between annual precipitation and recharge. The possible influences of vegetation cover alterations following precipitation change cannot be excluded as well. The approximately negative correlation between the average annual recharge and temperature suggests that changes in temperature have had significant influences on recharge.

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Section: Methods For Recharge and Chronology Calculation And Chloridementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Groundwater Diffuse Recharge and its Response to Climate Changes in Semi-Arid Northwestern China

Deng¹,

Wang²,

Cai³

et al. 2015

Terr. Atmos. Ocean. Sci.

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“…It has been applied in many studies worldwide [12][13][14][15]. Knowledge of atmospheric chloride deposition is a prerequisite for applying this method, which is never straightforward given a range of processes that control atmospheric deposition [16][17][18][19] as they fluctuate temporally and are spatially variable, which makes extrapolating point measurements difficult.…”

Section: Introductionmentioning

confidence: 99%

“…(2) Las Cañadas aquifer, on the central Tenerife Island, when five rain collection stations were in operation in hydrologic year [2005][2006]; the average recharge was estimated to be 215 mm/year (44% of precipitation) [23]; (3) La Aldea aquifer [24], under semiarid conditions; (4) on La Gomera Island with a detailed groundwater chloride map, corrections were applied for mixing due to slope effects and after assuming deposition rates that had been extrapolated from other islands [5]; (5) the Amurga Fonolitic Massif on the southeastern part of Gran Canaria Island using chloride deposition [25] and 13 C-corrected 14 C data in a sloping aquifer to obtain the average recharge rate. This resulted in an areal average of about 4 mm/year, from less than 1 mm/year on the coast to 12 mm/year at the top of the wedge-shaped massif [5].…”

Section: Introductionmentioning

confidence: 99%

Estimating Natural Recharge by Means of Chloride Mass Balance in a Volcanic Aquifer: Northeastern Gran Canaria (Canary Islands, Spain)

Naranjo

Cruz-Fuentes

Cabrera

et al. 2015

Water

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Abstract:The chloride mass balance method was used to estimate the average diffuse groundwater recharge on northeastern Gran Canaria (Canary Islands), where the largest recharge to the volcanic island aquifer occurs. Rainwater was sampled monthly in ten rainwater collectors to determine the bulk deposition rate of chloride for the 2008-2014 period. Average chloride deposition decreases inwardly from more than 10 g·m . The application of the chloride mass balance method resulted in an estimated average recharge of about 28 hm 3 /year or 92 mm/year (24% of precipitation) in the study area after subtracting chloride loss with surface runoff. The average storm runoff was estimated to be 12 hm 3 /year (9% of precipitation) for the 1980-2014 period. Runoff was sampled during scarce rainy periods, which produce surface water flow. Average recharge varies from less than a few mm/year near the coast up to 270 mm/year in the highlands (about 33% of average rainfall), with a close-to-linear increase inwardly of about 18 mm·year. Recharge rate uncertainty corresponds to an estimated CV of 0.3-0.4 because of the short data series available.

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“…Another potential source of nitrate leaching to the groundwater that deals with farming is the storage of the manure (animal wastes). It results in excessive leaching of nitrates 9,14,16 .…”

Section: Introductionmentioning

confidence: 99%

Seasonally Variation of Nitrate Level Before and After Fertilizers Application in Ground Water of Sikar District (India)

Kalwania¹,

Shyam²

2012

Orientjchem.

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Geochemical processes are identified as controlling factors of groundwater chemistry, including chemical leaching and nitrate contaminations. These geochemical processes are analyzed using major physico-chemical parameters of ground water from Sikar district. The analysis indicated that nitrate, phosphorous and potassium concentrations in fertilizers consumed area (FCA) have been observed greater than none fertilizers consumed area (NCA). These increased level has been observed after fertilizers application in the FCA, thereby suggesting the need for prevent excessive fertilizer uses, soil conservation, balanced fertilization, uses of slow-release fertilizers and best management for manure storages. No appreciable changes in water quality parameters have been pointed out in NCA during same period of application.

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Groundwater recharge in natural dune systems and agricultural ecosystems in the Thar Desert region, Rajasthan, India

Cited by 61 publications

References 38 publications

Groundwater Diffuse Recharge and its Response to Climate Changes in Semi-Arid Northwestern China

Groundwater Diffuse Recharge and its Response to Climate Changes in Semi-Arid Northwestern China

Estimating Natural Recharge by Means of Chloride Mass Balance in a Volcanic Aquifer: Northeastern Gran Canaria (Canary Islands, Spain)

Seasonally Variation of Nitrate Level Before and After Fertilizers Application in Ground Water of Sikar District (India)

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