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| [9001759.] كود البحث : | 9001759 - 2017/11/25 |
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Floristic Features and Vegetation Structure of Salt Affected Lands at the North Nile Delta, Egypt / |
| تخصص البحث : Basic Sciences |
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Mansoura Journal of Environmental Sciences - Egypt JOESE / Vol.46 No.1 - March 2017 |
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Yasser A. El-Ameir - مؤلف رئيسي |
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Ramadan A. Shawky |
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Keywords: Vegetation, Salt affected lands, North Nile Delta. |
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To carry out the present investigation, some pilot areas were selected at the north of the Nile Delta of Egypt extending from Damietta westward to Rosetta covering the north borders of five Governorates namely: Port Said, El-Dakahlia, Damietta, Kafr El-Sheikh and El-Behira. The vegetation of the study areas was represented by 79 species (38 annuals, one biennials and 40 perennials) belonging to 63 genera and related to 24 families. Poaceae, Astraceae and Chenopodiaceae are considered the major families as they contribute collectively about 51.91% of the total recorded species. Therophytes and cryptophytes are the most abundant life forms. The chorological analysis of the study area revealed that the Mediterranean taxa are represented by relatively highest percentage of plant species (66.3%). On the other hand, the Cosmopolitan (12.66%), Pantropical (2.53%), Neotropical (2.83%), Saharo-Sindian (3.80%). The vegetation structure is classified by TWINSPAN into four groups; I) dominated by Arthrochemum macrostachyum, II) dominated by Halocnemum strobilaceum, III) co-dominated by Halocnemum strobilaceum and Juncus acutusand group IV) co-dominated by Inula crithmoides and Juncus rigidus. The most important edaphic factors correlated with the vegetation of the salt affected sites are: magnesium, electric conductivity, sulphates, chlorides, calcium carbonate, porosity, water-holding capacity and pH |
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