Flora, Life Form and Geographical Distribution of Plants in West-South Forests of Iran (Case Study: Vezg, Yasouj)
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 23
Abstract
Identification of flora in each region, plays an important role in maintaining the national reserves of each country. This study was carried out to identify the species, life form and geographical distribution of plants in Vezg region, which is located at Southeastern of Yasouj, in south-west of Iran (E 51°, 39', 55''-51°, 41', 10'' , N 30°, 30', 35''-30°, 32', 0'')). In this study, 122 flora species belong to 102 genera and 32 families were surveyed from April 2010 to August 2011. The life form spectrum was determined using Raunkierʼ s system and compared with his normal spectrum. The herbaceous/woody species ratio was 7.13. The families with the greatest number of species were Compositae (17), Umblliferae (13), Labiatae (12), Caryophyllaceae (10) and Cruciferae (10). The observed life-form spectrum was: Therophytes (45.9%), Hemicryptophytes (32%), cryptophytes (9.8%), Phanerophytes (9.01%) and Chamaephytes (3.27%). In geographical distribution, the most frequency was 72.95% (89 species) that belongs to Irano-Turanian zone. Results showed that therophytes and hemicryptophytes were more than and phanerophytes and chamaephytes were less than the normal spectrum. Our findings are in agreement with data obtained in arid and semi-arid climates.
Authors and Affiliations
Roghaieh Aghaei, Sohrab Alvaninejad, Roghaieh Zolfaghari, Mohammad Reza Mirzaei Gharehlar
Keywords
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