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Studying the Effect of Forest Fire on Soil Erosion and Loss of Some Mineral Elements in the Forest of Ein Al-Jaouz/Tartous

تأثير الحرائق على انجراف التربة و فقدان بعض العناصر المعدنية منها في غابة عين الجوز – طرطوس

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




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This research aims at evaluating the effect of fire on the erosion of burned forest soils after rainfall. The research was carried out during (2010/2011) in a pine forest near the village of Ein Al-Jaouz at an altitude of 900m, north east Tartous governorate. The forest had a fire in October 2009. Ten metal plots (2m2 each plot) were used to evaluate soil erosion, five plots in the burned part of the forest and another five plots in the unburned part. The runoff coefficient, soil erosion rate, soil pH and rate of some mineral elements (Ca++, K+ , Mg++) were estimated and compared in the two parts. This study showed that the runoff coefficient was three times as great on the burned part as on the unburned part, and the rate of soil erosion was 7.22 Mg/ha in the burned part and 0.1Mg/ha in the unburned part. This shows the impact of fire in increasing soil erosion and runoff. This study also showed the difference in cation concentrations in the runoff water between the two parts. The study reveals the importance of protecting forests against fire. This is to limit soil erosion and its economic and environmental consequences.


Artificial intelligence review:
Research summary
تهدف هذه الدراسة إلى تقييم تأثير الحرائق على انجراف التربة وفقدان بعض العناصر المعدنية منها في غابة عين الجوز بمحافظة طرطوس. تم تنفيذ البحث خلال العام 2010-2011 في غابة من الصنوبر البروتي التي تعرضت لحريق في أكتوبر 2009. استخدمت الدراسة أحواض معدنية لتقدير انجراف التربة، حيث وضعت خمسة منها في الجزء المحروق وخمسة أخرى في الجزء غير المحروق. أظهرت النتائج أن معامل الجريان السطحي في الجزء المحروق بلغ ثلاثة أضعاف قيمته في الجزء غير المحروق، وأن معدل انجراف التربة بعد الحريق وصل إلى 7.22 طن/هكتار مقابل 0.1 طن/هكتار في الجزء غير المحروق. كما أظهرت الدراسة اختلافات في تراكيز الكاتيونات القاعدية في المياه المتجمعة بين الجزأين. تؤكد الدراسة على أهمية دور الغطاء النباتي في حماية التربة من الانجراف وما يترتب عليه من خسائر بيئية واقتصادية.
Critical review
دراسة نقدية: تقدم هذه الدراسة فهماً جيداً لتأثير الحرائق على انجراف التربة وفقدان العناصر المعدنية، ولكن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين فترة زمنية أطول للمراقبة بعد الحريق للحصول على بيانات أكثر شمولية. ثانياً، لم يتم التطرق بشكل كافٍ إلى تأثيرات الحرائق على التنوع البيولوجي في المنطقة. ثالثاً، كان من الممكن استخدام تقنيات تحليلية أكثر تطوراً لتحديد تركيزات العناصر المعدنية بشكل أدق. على الرغم من هذه النقاط، فإن الدراسة تقدم مساهمة قيمة في فهم تأثير الحرائق على النظم البيئية الحراجية في المنطقة الساحلية السورية.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي هو تقييم تأثير الحرائق على انجراف التربة وفقدان بعض العناصر المعدنية منها في غابة عين الجوز بمحافظة طرطوس.

  2. ما هي النتائج الرئيسية التي توصلت إليها الدراسة بشأن معامل الجريان السطحي؟

    أظهرت النتائج أن معامل الجريان السطحي في الجزء المحروق بلغ ثلاثة أضعاف قيمته في الجزء غير المحروق.

  3. كيف أثرت الحرائق على تركيزات الكاتيونات القاعدية في التربة؟

    أظهرت الدراسة اختلافات في تراكيز الكاتيونات القاعدية في المياه المتجمعة بين الجزأين المحروق وغير المحروق.

  4. ما هي التوصيات التي قدمتها الدراسة للحد من تأثير الحرائق على التربة؟

    توصي الدراسة بفهم تأثير العودة التدريجية للتغطية النباتية لأرض الغابة المحروقة في حماية التربة، وتقدير تراكيز الفوسفور والأزوت في عينات التربة.


References used
BENTLEY,J.R. & FENNER,R.L. Soil temperatures during burning related to postfire seedbeds on woodland range. Journal of Forestry 56, 1958,737-740
DE LUIS, M; GONZA´LEZ-HIDALGO, JC; & RAVENTO´S, J.Effcts of fir and torrnatial rainfall on erosion in meditrranan gorse community. Land Degrad. Develop 14,2003, 203–213
Elwell, H; Stoking, M. Vegetal cover to estimate soil erosion hazard in Rhodesia. Geoderma 15, 1976, 61–70
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