DETERMINING ORIGIN OF GROUNDWATER RECHARGE RESOURCES, DROUGHT AND WET PERIODS BY ISOTOPIC TRACERS IN HASHTGERD PLAIN

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SAADATI HOSSEIN; SHARIFI FOROUD; MAHDAVI MOHAMMAD; AHMADI HASAN; MOHSENI SARAVI M.

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Journal: Journal of Range and Watershed Managment Year:2009 | Volume:62 | Issue:1 Page(s): 49-63

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Title

DETERMINING ORIGIN OF GROUNDWATER RECHARGE RESOURCES, DROUGHT AND WET PERIODS BY ISOTOPIC TRACERS IN HASHTGERD PLAIN

Author(s)

Keywords

DROUGHT AND WET PERIODSQ3

GROUNDWATER RECHARGEQ3

HASHTGERDQ3

ISOTOPEQ3

TRACERQ3

Abstract

The main structure of this study includes; isotopic TRACER evaluation and measuring, to identify and origin of GROUNDWATER RECHARGE, contributions determine of diffused recharge (DR) and concentrated recharge (CR) as well as determine DROUGHT AND WET PERIODS in HASHTGERD plain. The hydrochemical study which involved collection and analysis of water samples from the deep and dug wells, springs, tap water and rainwater showed that the rainwater is little source of GROUNDWATER RECHARGE. The isotopical study aimed to determine the origin of the groundwater bodies and to offer support for the hydrochemical analysis. To achieve this purpose samples analyzed for H2 and O18 and data was quoted from literature about the isotopic composition of precipitation. The study shows that the isotopic composition during the rainy season ranges for dO18 between -6.05 ‰ and -6.92 ‰ and for dH2 between-45.92 ‰ and -52.27 ‰. The changes in dO18 are correlated with those of dH2 with R2=0.9 that was similar to GMWL line. Proving their meteoric origin. Cluster analysis supported by the Hierarchical Cluster Analyze, Chebychev and Mann-Whitney tests classified the analyzed rivers water samples into two main groups: the first cluster was included Kordan, Aqasht, Sorheh and Khor rivers. Because of the low runoff and high infiltration these rivers are recharged through groundwater. The second cluster was consisted Valian, Fashand and Hiv-shalamzar rivers. Because of the low infiltration these rivers are recharged through runoff. Cluster Analysis shows that the samples of groundwater of HASHTGERD plain were divided into three clusters. The first cluster was included west and north-east of HASHTGERD plain (Nazarabad, HASHTGERD town, Baraghan and Kordan) were recharged through surface water and rainfall. The second cluster was included north and center of HASHTGERD plain were recharged through surface and groundwater. The third cluster was included south-west and south-east of HASHTGERD plain which were recharged through groundwater. The results show that concentrated recharge (CR) supply groundwater more than diffused recharge (CR). Concentrated recharge was performed by watersheds and flood spreading. Using isotopic method, mean values of dO18 and dH2 in a mass-balance equation, the relative contributions of diffused recharge (DR) and concentrated recharge (CR), to groundwater were estimated to be 78% and 22%, respectively. According to results of this study, groundwater resource level decrease and there is a drought period in HASHTGERD plain.

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APA: Copy

SAADATI, HOSSEIN, SHARIFI, FOROUD, MAHDAVI, MOHAMMAD, AHMADI, HASAN, & MOHSENI SARAVI, M.. (2009). DETERMINING ORIGIN OF GROUNDWATER RECHARGE RESOURCES, DROUGHT AND WET PERIODS BY ISOTOPIC TRACERS IN HASHTGERD PLAIN. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 62(1), 49-63. SID. https://sid.ir/paper/162605/en

Vancouver: Copy

SAADATI HOSSEIN, SHARIFI FOROUD, MAHDAVI MOHAMMAD, AHMADI HASAN, MOHSENI SARAVI M.. DETERMINING ORIGIN OF GROUNDWATER RECHARGE RESOURCES, DROUGHT AND WET PERIODS BY ISOTOPIC TRACERS IN HASHTGERD PLAIN. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2009;62(1):49-63. Available from: https://sid.ir/paper/162605/en

IEEE: Copy

HOSSEIN SAADATI, FOROUD SHARIFI, MOHAMMAD MAHDAVI, HASAN AHMADI, and M. MOHSENI SARAVI, “DETERMINING ORIGIN OF GROUNDWATER RECHARGE RESOURCES, DROUGHT AND WET PERIODS BY ISOTOPIC TRACERS IN HASHTGERD PLAIN,” JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 62, no. 1, pp. 49–63, 2009, [Online]. Available: https://sid.ir/paper/162605/en

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