University of Tehran Press Journal of Ecohydrology 2423-6098 4 3 2017 09 23 Evaluation of the role of Sarcahan-Floodwater spreading in the artificial groundwater recharge Evaluation of the role of Sarcahan-Floodwater spreading in the artificial groundwater recharge 749 761 62507 10.22059/ije.2017.62507 FA Abazar Mostafaei PhD of Hydrogeology, Soil Conservation and Watershed Management Research Institute (SCWMRI), Agricultural Research, Education & Extension Organization (AREEO), Tehran, Iran 0000-0002-3833-3025 Vahideh Moradniya MSc., Soil Conservation and Watershed Management Research Institute(SCWMRI), Agricultural Research, Education & Extension Organization (AREEO), Tehran, Iran Masoud Godarzi Assistant Professor, Soil Conservation and Watershed Management Research Institute (SCWMRI), Agricultural Research, Education & Extension Organization (AREEO), Tehran, Iran 0000-0003-3577-739X Journal Article 2016 12 30 Despite the arid and semi-arid climate of Iran, a considerable volume of water becomes out of reach by annual flash flood events. Therefore, in order to solve the problem, Floodwater Spreading Systems have been implemented approximately over the past three decades. The aim of this study was to evaluate quantitative changes of the groundwater affected by the Sarcahan floodwater spreading which was implemented in Hormozgarn Province using <em>Control Volume</em> technique. Sarcahan floodwater spreading project has been implemented in an area of 2000 hectares. The well-hydrographs, rainfall histographs, and the fluctuation of groundwater at observation wells synchronizing with the frequency of flooding were used to evaluate the effect of the project on the groundwater. Examined observation wells showed a relative increase in the level of groundwater after the primarily flood controlling; in other words, the hydrograph of observation well located in the area of flooding has considerably increased by about 1.34 meters. Groundwater levels changes recorded at the observation wells are quite similar to the feeding/withdrawing ratio whereas in 2008 groundwater level increased by about 4.43 meters. Furthermore, in the Gahkom-Saadatabad the amount of rain more than 60 mm or continuous rainfall in large quantities can artificially recharge the aquifer. The results indicated that the Sarcahan project has not satisfactory effect on the groundwater according to predictions. Despite the arid and semi-arid climate of Iran, a considerable volume of water becomes out of reach by annual flash flood events. Therefore, in order to solve the problem, Floodwater Spreading Systems have been implemented approximately over the past three decades. The aim of this study was to evaluate quantitative changes of the groundwater affected by the Sarcahan floodwater spreading which was implemented in Hormozgarn Province using <em>Control Volume</em> technique. Sarcahan floodwater spreading project has been implemented in an area of 2000 hectares. The well-hydrographs, rainfall histographs, and the fluctuation of groundwater at observation wells synchronizing with the frequency of flooding were used to evaluate the effect of the project on the groundwater. Examined observation wells showed a relative increase in the level of groundwater after the primarily flood controlling; in other words, the hydrograph of observation well located in the area of flooding has considerably increased by about 1.34 meters. Groundwater levels changes recorded at the observation wells are quite similar to the feeding/withdrawing ratio whereas in 2008 groundwater level increased by about 4.43 meters. Furthermore, in the Gahkom-Saadatabad the amount of rain more than 60 mm or continuous rainfall in large quantities can artificially recharge the aquifer. The results indicated that the Sarcahan project has not satisfactory effect on the groundwater according to predictions. https://ije.ut.ac.ir/article_62507_a2f9d99dc9d46aa024d1165a9b55d9a7.pdf