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Influence of Environmental Factors on Distribution of Plant Species in Nodushan Rangelands of Yazd Province (Iran) | ||
| Desert | ||
| مقاله 3، دوره 18، شماره 1، فروردین 2013، صفحه 19-26 اصل مقاله (130.94 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jdesert.2013.36272 | ||
| نویسندگان | ||
| M. Mousaei Sanjerehei* 1؛ M. Jafari2؛ A. Mataji3؛ N. Baghestani Meybodi4؛ M. R. Bihamta5 | ||
| 1Department of Plant Protection, Yazd Branch, Islamic Azad University, Yazd, Iran | ||
| 2Faculty of Natural Resources, University of Tehran, Karaj, Iran | ||
| 3Department of Forestry, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| 4Agricultural and Natural Resources Research Center, Yazd, Iran | ||
| 5College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran | ||
| چکیده | ||
| The purpose of this study was to evaluate the species-environment relationships in arid and semi-arid rangelands of Nodushan, Yazd. The plant species cover and the environmental variables were measured at 9 sites. Soil samples were taken for measurement of 12 attributes in 0-10 cm and 10-80 cm layers. Vegetation was classified using twoway indicator species analysis (TWINSPAN). Data was analyzed using the ordination method of canonical correspondence analysis (CCA). Results showed that soil texture, organic matter, gypsum, salinity, C/N ratio, and elevation greatly affected the distribution of vegetation. Anabasis aphylla reflected the high salinity and saturation moisture content of soils. Ephedra strobilacea reflected a high level of soil gypsum and a high C/N ratio. Artemisia aucheri was characterized by a gradient of increasing elevation, high organic matter, and available water. Determining the vegetation-environment relationships at these sites facilitates the improvement and reclamation of arid and semi-arid shrubland ecosystems. | ||
| کلیدواژهها | ||
| Arid and semi arid rangelands؛ Nodushan؛ Ordination؛ soil؛ Species-environment | ||
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