Phytosociological studies of the Mouteh protected area.
2005
Asri, Younes | Hamzeh`i, Behnam | Mozaffariyan, Valiollah
Mouteh Refuge covers an area of 200000 hectars situated in the northwest of Meymeh and southwest of Delijan. Minimum and maximum of altitude are 1800 and 3000 m, respectively. The Refuge presents a variety of habitats, including stony slopes, pedimont plains, alluvial plains, salt marshes, saline rivers and springs. A total of 580 species and subspecific taxa were identified based on plant samples collected in several years. They are including two gymnosperms, 502 dicotyledones and 76 monocotyledones. Altogether, 63 families and 286 genera are known from the area. The following families have the highest number of species: Asteraceae (14.3 %), Fabaceae (10.2 %), Brassicaceae (9.5 %), Poaceae (7.9 %), Chenopodiaceae (7.6 %), Caryophyllaceae (5.9 %) and Lamiaceae (5.9 %). Therophytes with 209 species (36 %) and hemicryptophytes with 208 species (35.9 %) are the most frequent life forms of the Refuge. The distributions of 449 species (77.4 %) are restricted to Irano – Turanian region. Of these 96 species (21.4 %) are endemics of Iran. The vegetation of Mouteh Refuge was studied, using the method. 132 releves in different habitats were recorded. Braun-Blanquet Phytosociological data were analysed by Factorial Correspondence Analysis (AFC) and Hierarchical Ascendent Classification (HAC) methods, using the Anaphyto software. The distribution of 38 associations determined in the area is mainly affected by annual rainfall, physiographic features and physical properties of the soil. The effect of these factors is related to their influence on the amount, availability and continuity of the water supply. Also, the chemical characteristics of the soil, namely EC and lime are differential factors of the vegetational pattern in the area.
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