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Evaluation Of Seawater Intrusion With groundwater In Al-Bassa Coastal Area For 2014 Using Chemical Monitoring

تقييم تداخل مياه البحر مع المياه الجوفية في منطقة البصّة الساحلية لعام 2014 باستخدام الرصد الكيميائي

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 Publication date 2018
  fields Geology
and research's language is العربية
 Created by Shamra Editor




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This study includes the evaluation of the problem of seawater intrusion in Al-Bassa area in 2014 through chemical monitoring of a group of sampling wells, under certain condition that were subjected to the area during the research, representing by rainfall precipitation in the study area was only 500 mm/ year, as a result in the suspension of irrigation from 16 October lake and reuse of many abandoned pumping wells. This study founds an increasing in the salinity values in the Al- Bassa coastal area of summer in 2014, ranging between(665.6-6432mg/l)after increasing daily pumping rates, in addition to the increasing of chloride and sodium concentrations in most of sampling wells water in conjunction with high salinity levels. In the fall, the salinity values ranged between 490-950 mg / l. The geochemistry of Na/Cl indicates values less than 0.84 in most water samples during the summer, while in autumn this percentage was higher than 0.84 in most samples ,to be an indicator for marine water.


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Research summary
يتناول هذا البحث مشكلة تداخل مياه البحر مع المياه الجوفية في منطقة البصة الساحلية لعام 2014، حيث تم استخدام الرصد الكيميائي لتقييم هذه المشكلة. تم جمع عينات من 26 بئراً موزعة بين المناطق السكنية والزراعية، وتم تحليلها خلال فصلي الصيف والخريف. أظهرت النتائج ارتفاعاً في ملوحة المياه خلال فصل الصيف بسبب زيادة معدلات الضخ اليومي، مما أدى إلى ارتفاع تركيز الكلور والصوديوم في المياه. في فصل الخريف، انخفضت قيم الملوحة نتيجة لزيادة الهطول المطري وتوقف عمليات الضخ. تشير النسبة الجيوكيميائية Na/Cl إلى وجود تأثير لمياه البحر في معظم العينات خلال فصل الصيف، بينما كانت النسبة أعلى في الخريف مما يدل على تراجع تأثير مياه البحر. توصي الدراسة بإجراء دراسات دورية لحماية الموارد المائية في المناطق الساحلية، وتحسين شبكات الري للاستفادة من مياه الأمطار في مواسم الجفاف.
Critical review
دراسة نقدية: الدراسة تقدم تحليلاً شاملاً لمشكلة تداخل مياه البحر مع المياه الجوفية في منطقة البصة الساحلية، وتستخدم منهجية علمية دقيقة في جمع وتحليل البيانات. ومع ذلك، يمكن تحسين الدراسة من خلال تضمين تحليل اقتصادي لتأثير تداخل مياه البحر على الزراعة المحلية والاقتصاد المحلي. كما أن الدراسة يمكن أن تستفيد من استخدام تقنيات حديثة مثل الاستشعار عن بعد ونظم المعلومات الجغرافية لتحسين دقة النتائج وتوسيع نطاق البحث ليشمل مناطق أخرى مشابهة.
Questions related to the research
  1. ما هي الأسباب الرئيسية لتداخل مياه البحر مع المياه الجوفية في منطقة البصة الساحلية؟

    الأسباب الرئيسية تشمل زيادة معدلات الضخ اليومي للمياه الجوفية، وانخفاض الهطول المطري، وإعادة استخدام الآبار المهجورة.

  2. كيف تم تقييم ملوحة المياه الجوفية في الدراسة؟

    تم تقييم ملوحة المياه الجوفية من خلال قياس الناقلية الكهربائية وتحليل تركيز الكلور والصوديوم في عينات المياه المأخوذة من الآبار.

  3. ما هي التوصيات التي قدمتها الدراسة لحماية الموارد المائية في المنطقة؟

    توصي الدراسة بإجراء دراسات دورية لحماية الموارد المائية، وتحسين شبكات الري للاستفادة من مياه الأمطار في مواسم الجفاف.

  4. ما هو تأثير تداخل مياه البحر على صلاحية المياه الجوفية للاستخدامات البشرية والزراعية؟

    تداخل مياه البحر يؤدي إلى ارتفاع ملوحة المياه الجوفية، مما يجعلها غير صالحة للشرب والري حسب المعايير السورية.


References used
CAU, P،LECCA, G،PUTTI, M & PANICONI, C.The influence of a confining layer on saltwater intrusion under surface recharge and groundwater extraction conditions.Developments in Water Science,47,2002,493-500
ABD-ELHAMID, H & JAVADI, A. An investigation into control of saltwater intrusion considering the effects of climate change and sea level rise. Proceedings of 20th Saltwater Intrusion meeting, 2008. 4-7
AYERS, R.S. & WESTCOT, D.W. Water quality for agriculture FAO irrigation and drainage paper No 29. FAO publications. Rome .Italy,1976, 107
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