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Author Abiye, T.
Title (down) Synthesis on groundwater recharge in Southern Africa: A supporting tool for groundwater users Type Journal Article
Year 2016 Publication Groundwater for Sustainable Development Abbreviated Journal
Volume 2-3 Issue Pages 182-189
Keywords Arid and semi-arid areas, Groundwater recharge, Recharge estimation methods, Southern Africa
Abstract This synthesis on groundwater recharge targets the Southern African region as a result of the dependence of the community and economic sector on the groundwater resource. Several literature based recharge studies were collected and assessed in order to find out the main controls to the occurrence of recharge. The Water Table Fluctuation and Base flow separation methods have been tested in the catchment that drains crystalline basement rocks and dolostones close to the city of Johannesburg, South Africa. Based on the assessed data the Chloride Mass Balance method resulted in groundwater recharge of less than 4% of the rainfall, while it reaches 20%, when rainfall exceeds 600mm. For the classical water balance method, recharge proportion is less than 3% of rainfall as a result of very high ambient temperature in the region. Based on the Saturated Volume Fluctuation and Water Table Fluctuation methods, recharge could be less than 6% for annual rainfall of less than 600mm. Observational results further suggest that sporadic recharge from high intensity rainfall has important contribution to the groundwater recharge in the region, owing to the presence of permeable geological cover, which could not be fully captured by most of the recharge estimation methods. This study further documents an evaluation of the most reliable recharge estimation methods in the area such as the chloride mass balance, saturated volume fluctuation and water table fluctuation methods in order to successfully manage the groundwater resource.
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ISSN 2352-801x ISBN Medium
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Notes Approved no
Call Number THL @ christoph.kuells @ abiye_synthesis_2016 Serial 101
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Author Abadi, B.; Sadeghfam, S.; Ehsanitabar, A.; Nadiri, A.A.
Title (down) Investigating socio-economic and hydrological sustainability of ancient Qanat water systems in arid regions of central Iran Type Journal Article
Year 2023 Publication Groundwater for Sustainable Development Abbreviated Journal
Volume 23 Issue Pages 100988
Keywords Ancient irrigation, QWSs, GIS, Indigenous knowledge, Maintenance, Distribution
Abstract The Qanat water systems (QWSs), the ancient water engineering systems in Iran belonging to the very distant past, have harvested groundwater from drainages to convey it toward the surface with no use of energy. The present article highlights the socio-economic aspects of the sustainability of the QWSs and gives a satisfactory explanation of why the QWSs should be restored. In doing so, we subscribe to the view that indigenous and scientific knowledge should be incorporated. The former serves to tackle the restoration of the QWSs, the latter contributes to the distribution of water into the farmlands as efficiently as possible. Measured by (a) resilience, (b) reliability, (c) vulnerability, and (d) sustainability, the GIS technique made clear the performance of the QWSs has, therefore, the worst condition observed in terms of resiliency; the best condition observed concerning the vulnerability. Moreover, the QWSs have intermediate performance in terms of reliability. Finally, the sustainability index (SI) classifies the QWSs into different bands, which provide explicit support to take priority of the selection of the QWSs for restoration. In conclusion, a theoretical framework has been drawn to keep the QWSs sustainable.
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ISSN 2352-801x ISBN Medium
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Notes Approved no
Call Number THL @ christoph.kuells @ Abadi2023100988 Serial 268
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Author Patel, D.; Pamidimukkala, P.; Chakraborty, D.
Title (down) Groundwater quality evaluation of Narmada district, Gujarat using principal component analysis Type Journal Article
Year 2024 Publication Groundwater for Sustainable Development Abbreviated Journal
Volume 24 Issue Pages 101050
Keywords Fluoride, Groundwater quality index, Principal component analysis, Uranium
Abstract In the present study, the ground water quality parameters were monitored during pre- and post-monsoon seasons across Narmada district, Gujarat, India. Monitoring was done in 89 drinking water samples collected by grid sampling method from the study area. Uranium and fluoride were analyzed along with associated parameters such as pH, dissolved oxygen, Cl−, NO3−, F−, SO42−, total alkalinity, total dissolved solids and hardness. In 4% samples the fluoride content was found to be above WHO permissible limits of 1.5 mg/L (2.36 mg/L in Undaimandava, 1.55 mg/L in Shira, 3.04 mg/L in Fatehpur and 1.83 mg/L in Dholivav) during pre-monsoon season (PRM) and 4.74 mg/L, 2.41 mg/L, 2.34 mg/L and 3.99 mg/L respectively in Bantawadi, Shira, Undai Mandava and Fatepur villages during post-monsoon (POM). The uranium level was within WHO limits in both POM and PRM seasons. The quality of the water was evaluated by Principal Component and Pearson Correlation statistical analysis techniques. The PRM and POM correlation study indicated a strong correlation of TDS with EC, Chloride, total alkalinity and bicarbonate and U while moderately strong correlation of TDS with fluoride were observed indicating that chloride, total alkalinity, bicarbonate, U and fluoride contributed to TDS and EC. Principal component analysis was applied for 14 variables, from which 3 factors were extracted during PRM and POM seasons. The extracted components, contributed 84.391% and 83.315%, to variation during PRM and POM seasons respectively. The study indicated that the analyzed water samples in Narmada district were safe for drinking purpose. However, Tilakwada tehsil groundwater was observed to be unsustainable for drinking, without further water treatment, but was appropriate for agricultural purposes. The study will help the residents of the district to understand the present water quality status and will also help in future management to protect the ground water of Narmada district.
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Call Number THL @ christoph.kuells @ patel_groundwater_2024 Serial 148
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Author Klock, H.; Külls, C.; Udluft, P.
Title (down) Estimating recharge values using hydrochemical and geological data: a case study from the Type Conference Article
Year 2001 Publication Impact of Human Activity on Groundwater Dynamics: Proceedings of an International Symposium (Symposium S3) Held During the Sixth Scientific Assembly of the International Association of Hydrological Sciences (IAHS) at Maastricht, The Netherlands, from 18 t Abbreviated Journal
Volume Issue 269 Pages 25
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Area Expedition Conference International Assn of Hydrological Sciences
Notes Approved no
Call Number THL @ christoph.kuells @ Klock2001estimating Serial 60
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Author Dahan, O.; Tatarsky, B.; Enzel, Y.; Külls, C.; Seely, M.; Benito, G.
Title (down) Dynamics of flood water infiltration and ground water recharge in hyperarid desert Type Journal Article
Year 2008 Publication Groundwater Abbreviated Journal
Volume 46 Issue 3 Pages 450-461
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Publisher Blackwell Publishing Inc Malden, USA Place of Publication Editor
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Notes Approved no
Call Number THL @ christoph.kuells @ Dahan2008dynamics Serial 27
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