Investigation on different vegetation effects on sand dunes stabilization and improvement in Kashan
2004
Jafari, Mohammad, Professor in Natural Resources College of Tehran University | Azarnivand, Hossein, Assistant Professor in Natural Resources College of Tehran University | Tavakoli, Hossein, Research Assistant Professor in Researches Center of Agricultural and Natural Resources, Khorsan Province | Zehtabian, GholamReza, Profesor in Natural Resources Collage of Tehran University | Esmailzadeh, Hamid, M.Sc. in Managcement of desert Regions, The University of Tehran
In order to reclamation of plantation purposes in arid lands, it is necessary to select suitable plant species. Success in reclamation depends on identifying the necessities of mentioned plants, on the other hand these species with their special characteristics have special effects on their surrounding environment and it should be considered. The main objective of this study was to investigate the effects of Haloxylon aphyllum and Calligonum comosum on sand dunes physico – chemical properties and also establishment in Kashan. At the first stage two main areas of established plants (Mulched and no Mulched) were selected. Then according to status of plant cover 8, 100 square plots were established and in each plot some parameters such as plant diversity and percentage were estimated. At the second stage soil sample were taken from beneath bushes, between bushes and control area from two depths, 0-10 cm and 10cm. Soil samples were analyzed in laboratory and necessary comparisons were carefully made using some computer software such as Mstatc, SAS and Minitab. The results showed that there are significant differences between treatments. These species increased content of organic matter and N.P.K amounts in sand dunes. Organic matter improves soil structure in long term providing suitable conditions for microorganisms activities and increase pedolozation process. Key words: Sand dunes, Vegetation, Reclamation and Establishment and Organic matter
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