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[9000178.] رقم البحث : 9000178 - |
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Morpho-Anatomical Characteristics of Olive (Olea europaea L.)Trees Leaf as Bio-indicator of Cement Dust Air Pollution in Libya. / |
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قطاع الدراسات البيئية / Environmental Sociology |
| تخصص البحث : Environmental Sociology |
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Journal of Environmental Studies / / 9 - December 2012 |
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أحمد علي الخطيب ( jes@sohag-univ.edu.eg - ) |
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الرماح المهدي سعيد ( jes@sohag-univ.edu.eg - ) |
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ضياء الدين رضوان ( jes@sohag-univ.edu.eg - ) |
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Olea europaea , Epidermis, Stomata, Xylem, Morphology, Cement dust |
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Comparisons were made between the anatomical and morphological changes in olive tree leaf from a site with relatively clean air (Al-Khadra area), and two sites (al-Khums and Zelatin) near to cement factories in the area east to Tripoli, Libya. Olive tree leaves exhibited marked variations in their morphological and anatomical characteristics, in relations to variations in the site cement dust air pollution load. Under high pollution load, leaf visible injuries were recorded. In addition, stomata appear in higher density and smaller size than those at control. The anatomical characteristics of olive leaf including cuticle, epidermis, palisade tissue, mesophyll tissue, and elements of vascular cylinder (xylem and phloem) reflected the deteriorate effects of cement dust air pollutants, the subject which recommend their using as bio indicators. |
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