7079

6621

كارشناسي ارشد

محيط زيست

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1390

يازده، 70ص.: مصور، جدول، نمودار

ص.ع. به فارسي و انگليسي

نصرا... محبوبي صوفياني، حسين مرادي

نورالله مير غفاري

25/7/91

عيسي ابراهيمي، سيما فاخران

1396/09/19

كتابنامه

منابع طبيعي

مهندسي منابع طبيعي

ID6621

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Concentration and Distribution of Petroleum Based Trace Metales in Mangrove Roots Leaves and Sediments in Nayband Marine National Park and Hara Protected Area in Persian Gulf Region Abas Heydari Khossro Email address a heydarikhossro@na iut ac ir Date of Submission March Department of Natural Resources Isfahan University of Technology Isfahan Iran Degree M Sc Language Farsi Dr Nasrollah Mahboobi Soofiani Soofiani@cc iut ac ir Dr Hossein Moradi Hossein moradi@cc iut ac ir Abstract Mangrove forests are one of the most productive and richest ecosystems on the earth In comparison with other wetland areas they have been used more directly by human In this study Petroleum Based trace metals Nickel and Vanadium were measured in roots and Leaves samples of mangrove trees in Nayband Marine Natural Park and Harra Protected Area in Persian Gulf In each habitats two transects randomly were defined then three sampling points were taken randomly in each ends We took the samples from the surface sediments roots and leaves in each points So we had sampling points in each habitat That means measurements of Nickel and Vanadium in sediments samples in roots and samples in leaves in each habitats totally samples In sediment samples we also analyzed pH EC organic materials and the texture The results showed that the concentration of Vanadium and Nickel in root sample of Nayband were and and in Hara were and respectively Likewise sediments the concentration of the heavy metals in mangrove trees were higher in Hara than in Nayband Also the concentration of Nickel and Vanadium were higher in the Leaf samples of the Nayband than those in Harra Our results also showed that the correlation between Nickel and Vanadium in surface sediments in the root samples and in the leaf samples was higher in Hara but in Nayband there was no correlation between the concentration Nickel and Vanadium We found the concentration of Nickel and Vanadium in Harar samples higher than those in Nayband Analysis of the sediments characteristics showed that the amount of clay and silt in the sediments were significantly higher than those in Nayband Also the concentration of Nickel and Vanadium in Hara was increasing by increasing of pH and amount of clay significantly The concentration of Nickel and Vanadium in root samples of Hara also was increasing as the amount of clay was increasing Although we expected the higher concentration of these trace metals in Nayband but we found totally different results These would be because of different soil texture different pH and other sediment characteristics Also we assume that the slower slope of the coast in Hara as well as weaker currents and shallower where has affected the absorption of these trace metals by mangrove trees Key word Nickel Vanadium Mangrove trees Avicennia marina surface sediment transferring factor bioaccumulation Nayband Marine National Park Harra Protected Area PDF created with pdfFactory trial version www pdffactory com

نصرا... محبوبي صوفياني، حسين مرادي

نورالله مير غفاري

عيسي ابراهيمي، سيما فاخران