Reservoir sediments
This study delineates the physical, chemical, and biological effects resulting from anthropogenic and endogenic activities in a sensitive dammed reservoir situated in a semi-arid region. The reservoir is characterized by two major flow regimes: a wet fill hydrologic regime and a dry spill one. A sea...
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| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , , , |
| التنسيق: | article |
| منشور في: |
2015
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/3998 http://dx.doi.org/10.1007/s10661-015-4791-0 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://link.springer.com/article/10.1007/s10661-015-4791-0 |
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| _version_ | 1864513462792617984 |
|---|---|
| author | Wazne, Mahmoud |
| author2 | Ammar, Rawaa Kazpard, Veronique El Samrani, Antoine Amacha, Nabil Saad, Zeinab Chou, Lei |
| author2_role | author author author author author author |
| author_facet | Wazne, Mahmoud Ammar, Rawaa Kazpard, Veronique El Samrani, Antoine Amacha, Nabil Saad, Zeinab Chou, Lei |
| author_role | author |
| dc.creator.none.fl_str_mv | Wazne, Mahmoud Ammar, Rawaa Kazpard, Veronique El Samrani, Antoine Amacha, Nabil Saad, Zeinab Chou, Lei |
| dc.date.none.fl_str_mv | 2015 2016-06-09T10:42:30Z 2016-06-09T10:42:30Z 2016-06-09 |
| dc.identifier.none.fl_str_mv | 0167-6369 http://hdl.handle.net/10725/3998 http://dx.doi.org/10.1007/s10661-015-4791-0 Ammar, R., Kazpard, V., Wazne, M., El Samrani, A. G., Amacha, N., Saad, Z., & Chou, L. (2015). Reservoir sediments: a sink or source of chemicals at the surface water-groundwater interface. Environmental monitoring and assessment, 187(9), 1-20. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://link.springer.com/article/10.1007/s10661-015-4791-0 |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Environmental Monitoring and Assessment |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Reservoir sediments a sink or source of chemicals at the surface water-groundwater interface |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | This study delineates the physical, chemical, and biological effects resulting from anthropogenic and endogenic activities in a sensitive dammed reservoir situated in a semi-arid region. The reservoir is characterized by two major flow regimes: a wet fill hydrologic regime and a dry spill one. A seasonal sampling campaign was carried out over a period of 2 years (2011–2013) where water samples were collected across the water column and from piezometers just outside the perimeter of the reservoir. Similarly, sediments were collected from the corresponding areas beneath the water column. The water samples were analyzed for environmental isotopic ratios, elemental composition, and physical, biological and chemical parameters, whereas the sediment and algal samples were subjected to physical, mineralogical, spectroscopic, and microscopic analyses. This investigation indicated that the dam had resulted in the alteration of the biogeochemical cycle of nutrients as well as the degradation of the sediment and water quality. The hydrological and biogeochemical processes were found to induce vertical downward transport of chemicals towards the fine grained calcareous sediments during the fill mode, whereas the sediments acted as a source of a chemical flux upward through the water column and downward towards the groundwater during the spill mode. The geomorphological characteristics of the reservoir enhanced the strong hydrological connectivity between the surface water and the groundwater where the reservoir responded quickly to natural and anthropogenic changes in the upper watershed. The water and sediments in the sensitive spill mode were of poor quality and should receive more attention due to the potential hazard for the associated hydro-project and the sustainability of the agricultural soil in the long term. Thus, a safe water and sediment management plan should be implemented in order to improve the dam functionality and to safeguard the precious water resources. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_547cfbecaccb2534d6fed1f3a15e22aa |
| identifier_str_mv | 0167-6369 Ammar, R., Kazpard, V., Wazne, M., El Samrani, A. G., Amacha, N., Saad, Z., & Chou, L. (2015). Reservoir sediments: a sink or source of chemicals at the surface water-groundwater interface. Environmental monitoring and assessment, 187(9), 1-20. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/3998 |
| publishDate | 2015 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Reservoir sedimentsa sink or source of chemicals at the surface water-groundwater interfaceWazne, MahmoudAmmar, RawaaKazpard, VeroniqueEl Samrani, AntoineAmacha, NabilSaad, ZeinabChou, LeiThis study delineates the physical, chemical, and biological effects resulting from anthropogenic and endogenic activities in a sensitive dammed reservoir situated in a semi-arid region. The reservoir is characterized by two major flow regimes: a wet fill hydrologic regime and a dry spill one. A seasonal sampling campaign was carried out over a period of 2 years (2011–2013) where water samples were collected across the water column and from piezometers just outside the perimeter of the reservoir. Similarly, sediments were collected from the corresponding areas beneath the water column. The water samples were analyzed for environmental isotopic ratios, elemental composition, and physical, biological and chemical parameters, whereas the sediment and algal samples were subjected to physical, mineralogical, spectroscopic, and microscopic analyses. This investigation indicated that the dam had resulted in the alteration of the biogeochemical cycle of nutrients as well as the degradation of the sediment and water quality. The hydrological and biogeochemical processes were found to induce vertical downward transport of chemicals towards the fine grained calcareous sediments during the fill mode, whereas the sediments acted as a source of a chemical flux upward through the water column and downward towards the groundwater during the spill mode. The geomorphological characteristics of the reservoir enhanced the strong hydrological connectivity between the surface water and the groundwater where the reservoir responded quickly to natural and anthropogenic changes in the upper watershed. The water and sediments in the sensitive spill mode were of poor quality and should receive more attention due to the potential hazard for the associated hydro-project and the sustainability of the agricultural soil in the long term. Thus, a safe water and sediment management plan should be implemented in order to improve the dam functionality and to safeguard the precious water resources.PublishedN/A2016-06-09T10:42:30Z2016-06-09T10:42:30Z20152016-06-09Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0167-6369http://hdl.handle.net/10725/3998http://dx.doi.org/10.1007/s10661-015-4791-0Ammar, R., Kazpard, V., Wazne, M., El Samrani, A. G., Amacha, N., Saad, Z., & Chou, L. (2015). Reservoir sediments: a sink or source of chemicals at the surface water-groundwater interface. Environmental monitoring and assessment, 187(9), 1-20.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttp://link.springer.com/article/10.1007/s10661-015-4791-0enEnvironmental Monitoring and Assessmentinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/39982021-03-19T10:03:23Z |
| spellingShingle | Reservoir sediments Wazne, Mahmoud |
| status_str | publishedVersion |
| title | Reservoir sediments |
| title_full | Reservoir sediments |
| title_fullStr | Reservoir sediments |
| title_full_unstemmed | Reservoir sediments |
| title_short | Reservoir sediments |
| title_sort | Reservoir sediments |
| url | http://hdl.handle.net/10725/3998 http://dx.doi.org/10.1007/s10661-015-4791-0 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://link.springer.com/article/10.1007/s10661-015-4791-0 |