Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/s12517-021-08465-6 |
| Study of the groundwater salinity and modeling the recharge and the renewal rate based on stable and radioactive isotopes in El Haouaria aquifer, Tunisia | |
| Ben Hamouda, Mohamed Fethi | |
| 通讯作者 | Ben Hamouda, MF (corresponding author), CNSTN, Isotope Hydrol & Geochem Unit, Technopk Sidi Thabet, Sidi Thabet 2020, Tunisia. ; Ben Hamouda, MF (corresponding author), Inst Natl Agron Tunisie, LSTE, 43 Av Charles Nicolle, Tunis 1082, Tunisia. |
| 来源期刊 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| ISSN | 1866-7511 |
| EISSN | 1866-7538 |
| 出版年 | 2021 |
| 卷号 | 14期号:21 |
| 英文摘要 | In El Haouaria region located in the Cap Bon peninsula (N.E. Tunisia), the hydrodynamic survey revealed a decrease in unconfined groundwater reserves of approximately 11% over the last 30 years due to the abstraction of water. Over that same time period, the groundwater table displayed a natural decrease of about 10 m in depth over an area of 230 km(2). Hydrogeological investigations have shown that two aquifers which vertically integrate all of the permeable zones in the region can be distinguished: a shallow aquifer formed by filling the Quaternary and another deeper one in the Pliocene. These two aquifers are separated by a semi-permeable layer through which vertical exchange by seepage is possible. Different methods using geochemistry (Na+, Cl-, Br-) and stable isotopes (O-18, H-2) are compared with the hydrodynamic information for identifying the main processes involved in the salinization and recharge. Forty groundwater wells were sampled to obtain additional information on the hydrochemical and isotopic characteristics of the groundwater defined in previous studies. Estimation of groundwater recharge in this semi-arid area is difficult due to the low amount and variability of recharge. Two analytical models, taking into account the long term decrease of the water table, were used to interpret H-3 and C-14 content in groundwater. The median annual renewal rate (recharge as a fraction of saturated aquifer volume) varies between 0.2 and 0.3%. For representative characteristics of the aquifer (30 m of saturated thickness, porosity 14%) this implies a recharge of 10 to 12 mm/yr. |
| 英文关键词 | Hydrogeology Coastal aquifer Geochemistry Isotopes Tunisia |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000712980300003 |
| WOS关键词 | COASTAL AQUIFER ; WATER-TABLE ; CAP-BON ; ORIGIN ; C-14 ; SALINIZATION ; H-3 ; BASIN |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS研究方向 | Geology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/368226 |
| 作者单位 | [Ben Hamouda, Mohamed Fethi] CNSTN, Isotope Hydrol & Geochem Unit, Technopk Sidi Thabet, Sidi Thabet 2020, Tunisia; [Ben Hamouda, Mohamed Fethi] Inst Natl Agron Tunisie, LSTE, 43 Av Charles Nicolle, Tunis 1082, Tunisia |
| 推荐引用方式 GB/T 7714 | Ben Hamouda, Mohamed Fethi. Study of the groundwater salinity and modeling the recharge and the renewal rate based on stable and radioactive isotopes in El Haouaria aquifer, Tunisia[J],2021,14(21). |
| APA | Ben Hamouda, Mohamed Fethi.(2021).Study of the groundwater salinity and modeling the recharge and the renewal rate based on stable and radioactive isotopes in El Haouaria aquifer, Tunisia.ARABIAN JOURNAL OF GEOSCIENCES,14(21). |
| MLA | Ben Hamouda, Mohamed Fethi."Study of the groundwater salinity and modeling the recharge and the renewal rate based on stable and radioactive isotopes in El Haouaria aquifer, Tunisia".ARABIAN JOURNAL OF GEOSCIENCES 14.21(2021). |
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