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Study of some diagnostic characteristics and microbial activity for coastal soils in Safita

دراسة بعض الخواص التشخيصية و النشاط الميكروبي لتربة غابية في منطقة صافيتا

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 Publication date 2014
and research's language is العربية
 Created by Shamra Editor




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The aim of current research was to study some diagnostic characteristics /morphological, physical, chemical/and the origin structureofforest soils in Syrian coastal region. In addition to estimation of microbial activity of some microbial groups/bacteria, fungi, actinomycete/ to establish a general view of these soils. Two complete sections were prepared in the considered soils /Safita-Tartous/ andsamples were taken after the soils sections description for diagnostic characterization. The results showed that the soil pH was between neutral and tiny basic and because of the richnessof the studied soil by calcium carbonate. However, the highest percentage of organic matter in all sections were concentrated in the surface horizon and was decreasing with depth. Our results also showed that the microbial activity was positively correlated with the content of the organic matter and negatively with the depth, so the total number of bacteria and fungi was decreasing in the under surface horizon. A muddymetamorphosedhorizon (Bm) was formed in the two sections.


Artificial intelligence review:
Research summary
تهدف الدراسة إلى تحليل بعض الخواص التشخيصية والنشاط الميكروبي لتربة غابية في منطقة صافيتا بالساحل السوري. تم إعداد مقطعين كاملين من التربة وصولاً إلى مادة الأصل، وأخذت عينات من كل أفق لإجراء التحاليل الفيزيائية والكيميائية والميكروبيولوجية. أظهرت النتائج أن قيم pH التربة تراوحت بين المتعادل والقاعدي نتيجة غنى التربة بكربونات الكالسيوم والقواعد، وضعف عمليات غسل التربة. تركزت أعلى نسبة من المادة العضوية في الأفق السطحي وانخفضت مع العمق، كما ارتبط النشاط الميكروبي طرداً مع المادة العضوية وعكساً مع العمق. أظهرت النتائج أيضاً تشكل أفق طيني متحول في مقطعي التربة المدروسين. تم تصنيف التربة كـ Inceptisol وفق التصنيف الأمريكي، وWRB وفق التصنيف الدولي. توصي الدراسة باستمرار البحث في منشأ وتصنيف وتوزع الأحياء الدقيقة في ترب المنطقة الساحلية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة في فهم خصائص التربة الغابية في منطقة صافيتا، إلا أنها تفتقر إلى تحليل شامل للعوامل البيئية الأخرى التي قد تؤثر على خصائص التربة مثل تأثير المناخ والتضاريس بشكل أكثر تفصيلاً. كما أن الدراسة قد استفادت من استخدام تقنيات حديثة في تحليل التربة والنشاط الميكروبي، مما قد يزيد من دقة النتائج. بالإضافة إلى ذلك، يمكن أن تكون الدراسة أكثر شمولية إذا تم تضمين مقارنات مع مناطق أخرى مشابهة في الخصائص الجغرافية والبيئية.
Questions related to the research
  1. ما هي القيم التي تراوحت بينها pH التربة في الدراسة؟

    تراوحت قيم pH التربة بين المتعادل والقاعدي.

  2. أين تركزت أعلى نسبة من المادة العضوية في التربة؟

    تركزت أعلى نسبة من المادة العضوية في الأفق السطحي.

  3. ما هو تصنيف التربة وفق التصنيف الأمريكي؟

    تم تصنيف التربة كـ Inceptisol وفق التصنيف الأمريكي.

  4. ما هي التوصيات التي قدمتها الدراسة؟

    توصي الدراسة باستمرار البحث في منشأ وتصنيف وتوزع الأحياء الدقيقة في ترب المنطقة الساحلية.


References used
BARDGETT, R.D., FREEMAN, C., AND OSTLE, N.J. Microbial contributions to climate change through carbon cycle feedbacks. ISME J., 2008, 2: 805–814
BRUNEAU, P.M., DAVIDSON, D.A., GRIEVE, I.C., YOUNG, I.M. AND NUNAN, N. The effects of soil horizons and faunal excrement on bacterial distribution in an upland grassland soil. FEMS Microbiology Ecology, 2005., 52: 139–144
BRUSSAARD, L. Biodiversity and Ecosystem Functioning in Soil. Ambio. 1997, 26: 563–570
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