Coastal Dunes of East Mediterranean Features of Endemic Ononidetum hispanicae Association

Abstract

Ononidetum hispanicae association is endemic on coastal dunes of East Mediterranean in Turkey. This association is identifed in  Çaltıcak1, Çaltıcak2, Göynük, Kemer of Antalya province, in Taşucu, Sazbaşı and Susanoğlu of Mersin province and Muğla province. The association consists of grasses whose lentgh vary between 5 and 50 cm. The association’s  dominant species are Ononis hispanicae, Cynodon dactylon, Echium plantagineum, Paronchia argentea, Pancratium maritimum, Cyperus capitatus, Polygonum equisetiforme and Euphorbia paralias. It is an association of perennial vegetation on coastal dunes. The objectives of this study are investigation of the relationship between plant associations and the environment, especially the soil. Plant associations were found out to have displayed not only properties of soil, but also the way plant associations interact with it. The work area is coastal dunes as the type of land. Mediterranean floristic region of about 50 vascular plants have been identified within the study area. Most of the work place is filled with quaternary type of land. Stations in the study area, The central Mediterranean (WASS) and the Eastern Mediterranean I. Type (WSAS) precipitation regimes show and the work place has “Rainy Sub Soft, Rainy Sub Hot, A Little Rainy Warm, A little Rainy Soft” Mediterranean Bioclimate.  Alluvial soils exist in the group' s study field. Water saturation percentage is lower than of 36 % of the sand soils structure. % Water saturation ratio is high on  Mersin-Silifke coastal dunes.  Humidity percentage is high Antalya-Göynük  coastal dunes. Obviously, distribution of grain sizes plays key roles on vegetation on coastal dunes. Coastal sand dunes range from small to large grain sizes. The rate of small sand is high. The soil samples taken from the group are very little salty, very highly calcareous (21,64-55,61) on Mersin-Silifke and Taşucu coastal dunes, pH (7,6-7,8) slightly alkaline on Mersin-Susanoğlu coastal dunes and other coastal dunes are strongly alkaline.

Keywords

• Ononidetum hispanicae ass,Soil-vegetation relationship,Coastal ecosystems,Conservation area,Ecological tolerance limits

References

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