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Vegetation diversity of dune slacks in Egypt

Mahmoud El-Sayed Ali

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J. Bio. Env. Sci.5(5), 29-36, November 2014


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The present study intends to evaluate the dune slacks vegetation inside the sand dune ecosystem of Egypt. It represented by fives slacks in three different habitats: two brackish, two saline and one cultivated slacks in North Sinai. The density and cover of species were measured in 26 stands, 2X2 m2 each. The total number of their cover was 56 species. The richest habitat was the brackish slacks followed by cultivated and saline slacks respectively. By using two way indicator species analysis (TWINSPAN) it gives 12 groups as follow (5 cultivated groups, 4 brackish groups, and 3 saline groups). By using ordination methods CCA we found highly correlation between cultivated and brackish slacks and the fine soil particles silt and clay and the percentages of organic matters; and salinity, chlorides and sodium salts and the saline slacks. Line Regression between the number of species and the area of stand is positive in case of cultivated and brackish slacks, and negative between saline slacks and its areas.


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Vegetation diversity of dune slacks in Egypt

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