| Records |
| Author |
Abadi, B.; Sadeghfam, S.; Ehsanitabar, A.; Nadiri, A.A. |
Title  |
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 |
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| Volume |
23 |
Issue |
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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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2352-801x |
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no |
| Call Number |
THL @ christoph.kuells @ Abadi2023100988 |
Serial |
268 |
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| Author |
Abiye, T. |
| Title |
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 |
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| Volume |
2-3 |
Issue |
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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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2352-801x |
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no |
| Call Number |
THL @ christoph.kuells @ abiye_synthesis_2016 |
Serial |
101 |
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