Document Type : Research Paper

Authors

1 Senior Expert, Maku Natural Resources office, Maku, Iran

2 Associate Professor, Department of Natural Resources, University of Mohagegh Ardabili , Ardabil, Iran

3 Agricultural Research, Education and Extension Organization west Azernayjan, urmia, Iran

4 West Azerbaijan Agricultural and Natural Resources Research and Education center, Agricultural Research Education and Extension Organization, Urmia, Iran

Abstract

This study aimed to investigate the effects of livestock grazing in the way, changing the qualitative and quantitative composition of the plant As well as the different groups of plant species density in the enclosure in Boralan area. The vegetation and soil samples and 360 plots at 18 transect method - systematic random out of the enclosure and enclosure in three annual enclosures took place. The position of each plot were recorded using a Global Positioning System. Tilt maps and directions enclosure was prepared. Using the parameters plots a square meter of canopy cover, density, percentage of dead leaves, rocks and pebbles and bare soil were measured. During the growing season and plant species samples were identified using available resources. Shanon Vynz, Brillouin and uniformity Simpson and Simpson, Camargo, Smith and Wilson nor at the species level using Ecological Methodology software version 6.2, respectively. Compare enclosure vegetation parameters using SPSS software (version 16) and The enclosure and the enclosures were analyzed using multivariate methods. The results showed that the obtained in the studied sites (enclosure) 11 dark, 24 genera and 24 species, is widespread. Inside the enclosure with 24 species, with 17 species richness is more than grazed out. Values ​​of richness, diversity and uniformity within the enclosure is greater than the outside enclosure.

Keywords

Akbarzadeh, M. 2002. Introduction and management of toxinous plants to prevent poisoning of Animals in eastern summer areas in Mazandaran province. No 1, 23- 30.
Akhani, H. 1998. Diversity of plants in Golestan National Park. collection of paleontology and biodiversity Researches. 217- 237.
Alzerreca, H., Schupp E. W., Kitchen, S. G. 1998. Sheep grazing and plant cover dynamics of Shad scale community. Journal of Range Management, 51(2): 214-221.
Andel, T. V. 2001. Floristic composition and diversity of mixed primry and secondary forest in northwest Guyana. Biodivesity and Conservation, 10: 1645-1682.
Debert, A. O., Defreitas, J. A. 1993. A comparision of ungrazed and livestock-grazed rock vegetations in Curacao. Bitropica. 25: 270-280.
Ejtehadi, H., Ekafi, H., and Goreyshi Alhoseini, J. 2002. Investigation and comparing numerical indices of species diversity in two habitats with different grazing management. Iranian Journal of Biology. No 3. 49- 58.
Ejtehadi, H., sepehri. A., Ekafi. H. R. 2012 .Methods of measuring biodiversity. Ferdowsi University of Mashhad press. 226.
Gillaespie, T.W., Grijalva , A ., Farris, C. N. 2000. Diversity, composition and structure of tropical dry forests in central America. Plant Ecology. 147 p.
Khani, M., Ganbarian, gh., Kamali, A. 2011. Comparison of variability and richness index of plant species at different levels of grazing in hot and dry ranges of Fars province of iran. Journal of Rangeland. No 2. 129- 136.
Krebs, C. J. 1998. Ecological methodology. Addison – Wsley press, California
Lewinsohn, T. M., Fernandes, G.W and Benson, W. W. 2002. Plant-animal interactions: evolutionary ecology in topical and temperate regions, Wiley, New York, 300 p.
Maguran, A. E. 1996. Ecological diversity and its measurement, Princeton University Press, 179 p.
Mesdagi, M., Rashtian, A. 2005.  Investigated of Floristics composition and Species richness of Yekeh Chenar Rangelands in Golestan Province of Iran. Journal of Agricultural Sciences and Natural Resources. No 1. 25-37.
Moghaddam, M. R. 1998. Range and Range Management. University of Tehran press. 470.
Noy-Meir. I. 1990. Multivariate analysis of the semi-arid vegetation of southern Australia.ІІ. Vegetation catenae and environmental gradients. Australian Journal of Botany, 22: 40-115.
Osmoan, A. E. 1985. Pasture and productivity of marginal land near terbol. Lebanon: Icarda Annual Report.
Tuffel, K., Hein, V. S., Kotar, M., Preuhsler, E. P., Puumalainen, J. and Weinfurter, P. 2006. Sustainable Forest Management. Springer press, Germany.
Yeilagi, Sh. 2012. Comparison of Species, composition (species diversity) and density of rangeland plants inside and outside of the exclosure in Qushchy Ghat of Urmia. Msc Thesis of Rangeman. University of  Mohaghegh Ardabili. 106.