Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10040-015-1291-9 |
Estimating aquifer recharge in fractured hard rock: analysis of the methodological challenges and application to obtain a water balance (Jaisamand Lake Basin, India) | |
Rohde, Melissa M.1,5; Edmunds, W. Mike2; Freyberg, David1; Sharma, Om Prakash3; Sharma, Anupma4 | |
通讯作者 | Rohde, Melissa M. |
来源期刊 | HYDROGEOLOGY JOURNAL
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ISSN | 1431-2174 |
EISSN | 1435-0157 |
出版年 | 2015 |
卷号 | 23期号:7页码:1573-1586 |
英文摘要 | Groundwater recharge is an important metric for sustainable water management, particularly in semi-arid regions. Hard-rock aquifers underlie two-thirds of India and appropriate techniques for estimating groundwater recharge are needed, but the accuracy of such values is highly uncertain. The chloride mass balance (CMB) method was employed to estimate annual groundwater recharge rates in a monsoon-dependent area of Jaisamand Lake basin in Rajasthan, which contains the Gangeshwar watershed. A monitoring program was established within the watershed during summer 2009, with local participation for the collection of rainfall and groundwater samples. Groundwater recharge was estimated spatially over a 3-year period with pre-monsoon and post-monsoon datasets. Recharge rates estimated using the CMB method were then compared to those estimated using the water-table fluctuation (WTF) method. Specific yield was 0.63 % and assumed to be homogenous across the watershed. The average recharge rate derived from the WTF method (31 mm/year) was higher than that derived from the CMB method (24.3 mm/year). CMB recharge rates were also applied to obtain a water balance for the watershed. CMB recharge rates were used to estimate annual groundwater replenishment and were compared with estimates of groundwater withdrawal using Landsat imagery. Over the 2009-2011 study period, groundwater demand was about seven times greater than the estimated groundwater renewal of 5.6 million cubic meters. This analysis highlights the challenges associated with estimating groundwater recharge in fractured hard-rock aquifers, and how renewable groundwater-resource estimates can be used as a metric to promote sustainable water use. |
英文关键词 | Groundwater recharge/water budget Crystalline rocks Arid regions Agriculture India |
类型 | Article |
语种 | 英语 |
国家 | USA ; England ; India |
收录类别 | SCI-E |
WOS记录号 | WOS:000363550100017 |
WOS关键词 | CHLORIDE MASS-BALANCE ; QUANTIFYING GROUNDWATER RECHARGE ; ENVIRONMENT ; RESOURCES ; REGIONS ; TRITIUM ; AREAS ; MODEL ; O-18 ; ZONE |
WOS类目 | Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Geology ; Water Resources |
来源机构 | University of Oxford |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187698 |
作者单位 | 1.Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA; 2.Univ Oxford, Sch Geog & Environm, Oxford, England; 3.Wells India, Udaipur, Rajasthan, India; 4.Natl Inst Hydrol, Roorkee, Uttar Pradesh, India; 5.Stanford Univ, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Rohde, Melissa M.,Edmunds, W. Mike,Freyberg, David,et al. Estimating aquifer recharge in fractured hard rock: analysis of the methodological challenges and application to obtain a water balance (Jaisamand Lake Basin, India)[J]. University of Oxford,2015,23(7):1573-1586. |
APA | Rohde, Melissa M.,Edmunds, W. Mike,Freyberg, David,Sharma, Om Prakash,&Sharma, Anupma.(2015).Estimating aquifer recharge in fractured hard rock: analysis of the methodological challenges and application to obtain a water balance (Jaisamand Lake Basin, India).HYDROGEOLOGY JOURNAL,23(7),1573-1586. |
MLA | Rohde, Melissa M.,et al."Estimating aquifer recharge in fractured hard rock: analysis of the methodological challenges and application to obtain a water balance (Jaisamand Lake Basin, India)".HYDROGEOLOGY JOURNAL 23.7(2015):1573-1586. |
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