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Register a new userEffect of Some Physiographic Factors on Distribution and Composition of Current Forest Vegetation in Southwestern End of the Anti- Lebanon Mountains
تأثير بعض العوامل الطبوغرافية في توزيع و تركيب المجتمعات الغابوية الحالية في المنطقة الجنوبية الغربية من سِلْسِلة جبال لبنان الشرقية
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Damascus University ورقة بحثية
Publication date
1999
fields
Forestry and Ecology
and research's language is
العربية
Authors
محمد سليمان عبيدو( باحث )
Created by
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تمت دراسة أثر الارتفاع عن سطح البحر و اتجاه السفوح في توزع الأنواع و تركيب المجتمعات الغابوية في المنطقة الجنوبية الغربية من سلسلة جبال لبنان الشرقية (منطقة رخلة) و ذلك بإرساء ٣٢ قطعة تجريبية بطول ١٠٠ م لكل منها، مثلت الاتجاهات الأساسية للسفوح (الشرق و الغرب و الشمال و الجنوب) في مناطق الارتفاعات المختلفة. و اعتمدت معايير خاصة بالأنواع النباتية، كالكثافة النسبية و التغطية النسبية و التكرار النسبي، إضافة إلى معايير خاصة بالمجتمعات النباتية كالأهمية النسبية و الغنى و دليل سورنسون للتشابه. و تم تقدير الكثافة النباتية بالطرق البعدية.
The effect of elevation and slope exposure on forest vegetation composition in southwestern end of the Anti-Lebanon Mountains was assessed. Species and community parameters; relative density, coverage, frequency, importance value of encountered woody vegetation, richness and similarity indices; were quantified using thirty two line transects covering two altitudinal zones and the four major slope aspects. Furthermore, species density was measured using distance methods.
References used
أهدلي لؤي. ١٩٧٤ . علم المناخ والأرصاد الجوية. منشورات جامعة دمشق، المطبعة الجديدة، دمشق، سورية.
رحالي محمد. ١٩٨٧ . تدهور تجمعات اللزاب في منطقة عسال الورد. رسالة ماجستير، كلية العلوم جامعة دمشق.
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