Your search found 3 records
1 Dillon, P.; Stuyfzand, P.; Grischek, T.; Lluria, M.; Pyne, R. D. G.; Jain, R. C.; Bear, J.; Schwarz, J.; Wang, W.; Fernandez, E.; Stefan, C.; Pettenati, M.; van der Gun, J.; Sprenger, C.; Massmann, G.; Scanlon, B. R.; Xanke, J; Jokela, P.; Zheng, Y.; Rossetto, R.; Shamrukh, M.; Pavelic, Paul; Murray, E.; Ross, A.; Bonilla Valverde, J. P.; Palma Nava, A.; Ansems, N.; Posavec, K.; Ha, K.; Martin, R.; Sapiano, M. 2019. Sixty years of global progress in managed aquifer recharge. Hydrogeology Journal, 27(1):1-30. [doi: https://doi.org/10.1007/s10040-018-1841-z]
Groundwater management ; Groundwater recharge ; Groundwater extraction ; Groundwater pollution ; Water use ; Water quality ; Water resources ; Water levels ; Water storage ; Water supply ; Aquifers ; Artificial recharge ; Filtration ; Drinking water
(Location: IWMI HQ Call no: e-copy only Record No: H048926)
https://link.springer.com/content/pdf/10.1007%2Fs10040-018-1841-z.pdf
https://vlibrary.iwmi.org/pdf/H048926.pdf
https://vlibrary.iwmi.org/pdf/H048926.pdf
(4.47 MB)
The last 60 years has seen unprecedented groundwater extraction and overdraft as well as development of new technologies for water treatment that together drive the advance in intentional groundwater replenishment known as managed aquifer recharge (MAR). This paper is the first known attempt to quantify the volume of MAR at global scale, and to illustrate the advancement of all the major types of MAR and relate these to research and regulatory advancements. Faced with changing climate and rising intensity of climate extremes, MAR is an increasingly important water management strategy, alongside demand management, to maintain, enhance and secure stressed groundwater systems and to protect and improve water quality. During this time, scientific research—on hydraulic design of facilities, tracer studies, managing clogging, recovery efficiency and water quality changes in aquifers—has underpinned practical improvements in MAR and has had broader benefits in hydrogeology. Recharge wells have greatly accelerated recharge, particularly in urban areas and for mine water management. In recent years, research into governance, operating practices, reliability, economics, risk assessment and public acceptance of MAR has been undertaken. Since the 1960s, implementation of MAR has accelerated at a rate of 5%/year, but is not keeping pace with increasing groundwater extraction. Currently, MAR has reached an estimated 10 km3/year, ~2.4% of groundwater extraction in countries reporting MAR (or ~1.0% of global groundwater extraction). MAR is likely to exceed 10% of global extraction, based on experience where MAR is more advanced, to sustain quantity, reliability and quality of water supplies.
2 Ejaz, F.; Stefan, C.; Fatkhutdinov, A.; Usman, M. 2020. Integration of raster based irrigation and groundwater for water management in Punjab, Pakistan: a modeling and GIS based approach. International Journal of Water Resources and Arid Environments, 9(1):56-70.
Irrigation systems ; Water management ; Groundwater recharge ; Groundwater extraction ; Geographical information systems ; Water resources ; Groundwater table ; Water balance ; Water supply ; Canals ; Cropping patterns ; Evapotranspiration ; Rain ; Precipitation ; Decision support systems ; Models / Pakistan / Punjab / Lower Chenab Canal / Bhagat / Sultanpur
(Location: IWMI HQ Call no: e-copy only Record No: H049990)
(1.07 MB) (1.07 MB)
In Pakistan, groundwater resources are depleting because of its unaccounted use for agricultural purposes. Its sustainable management will play a vital role in the socio-economic development which would be possible by developing a flexible groundwater modelling system which has the ability to incorporate all the natural processes responsible for groundwater dynamics. With this in mind, a Decision Support System (DSS) based on multi-source vector and raster data has been developed. Raster based groundwater simulations on monthly temporal resolutions have been carried out, which incorporates all the natural processes by using groundwater flow model (i.e. r.gwflow). The developed DSS is tested for two irrigation sub-divisions (Bhagat & Sultanpur) located in Rechna Doab, Punjab, Pakistan. Groundwater balance in the region has been analyzed for the recent cropping conditions and simulations were performed for different interventions in irrigation and cropping practices. The modeling results indicate that, maximum groundwater abstraction has been observed in the months of May and June, exceeding 250 Mm . Out of total crop consumptive water, 51% is fulfilled by 3 canal water supply only. The best cropping practice with reference to maximum saving in groundwater resource is the cultivation of cotton, fodder (millet) during kharif cropping season and cultivation of wheat, fodder (oats, barley) during the rabi cropping season
3 Mozzi, G.; Pavelic, Paul; Alam, Mohammad F.; Stefan, C.; Villholth, Karen G. 2021. Hydrologic assessment of check dam performances in semi-arid areas: a case study from Gujarat, India. Frontiers in Water, 3:628955. [doi: https://doi.org/10.3389/frwa.2021.628955]
Dams ; Water storage ; Groundwater management ; Aquifers ; Groundwater recharge ; Semiarid zones ; Hydrogeology ; Assessment ; Runoff ; Infiltration ; Evaporation ; Groundwater table ; Water balance ; Water levels ; Water extraction ; Wells ; Weather data ; Precipitation ; Rain ; Case studies / India / Gujarat / Rajkot / Saurashtra
(Location: IWMI HQ Call no: e-copy only Record No: H050373)
https://www.frontiersin.org/articles/10.3389/frwa.2021.628955/pdf
https://vlibrary.iwmi.org/pdf/H050373.pdf
https://vlibrary.iwmi.org/pdf/H050373.pdf
(1.71 MB) (1.71 MB)
In semi-arid India, managed aquifer recharge (MAR) is often used to enhance aquifer storage, and by implication, water security, and climate resilience, by capturing surface runoff, mainly through check dams implemented at the community level. Despite their extensive use, the design of these structures typically does not follow a systematic method to maximize performance. To aid in the improvement of check dam design parameters and location siting, we develop a dynamic tool, which integrates the daily water balance of a check dam with analytical infiltration equations to assess check dam performance measured as temporal dynamics of storage, infiltration, and evaporation. The tool is implemented in R environment and requires meteorological and hydrogeological data, as well as check dam geometry and nearby well-abstractions, if any. The tool is applied to a case study in Saurashtra in Gujarat, where field visits were conducted. Simulations show that typical check dams in the area are able to store a volume between three and seven times their storage capacity annually. Infiltration volumes highly depend on hydroclimatic and hydrogeological conditions, as well as the formation of a clogging layer, highlighting the importance of site selection and periodic maintenance. The tool is validated with data from a previous study in Rajasthan, where daily water balance parameters were monitored. Validation results show an average R 2 of 0.93 between the simulated and measured water levels. The results are adequate to suggest that the tool is able to assist in check dam planning in semi-arid environments.
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