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Study of the effect of environmental factors on vegetation diversity in Eshtehard rangelands

    Authors

    • khadije naghizadeh
    • mohammad jafari
    • hosein azarnivand
    • mohamad ali zare chahiiki
    • Hamidreza Abasi
,

Document Type : Research Paper

10.22059/jrwm.2017.61982
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Abstract

The effect of environmental factors on vegetation diversity in Eshtehard rangeland was studied in present study. Sampling was done using Minimal Area method. To measure the plant properties in each type, regarding the extent of each type, three 500 meter transects with 50 meter intervals between transects (due to the scarce vegetation cover) were established. In each plot, the number and types of existing species and their percentages were determined. Also, profiles were dug at the beginning and end of each transect and soil specimens were sampled at 0- 20 cm depth. Among soil properties, the percentage of clay, silt, sand, organic matter, lime, acidity, electrical conductivity, calcium, magnesium, sodium and potassium were measured. After collecting data, Shanon-Winer species diversity and Simpson indices were determined using Ecological methodology Software. Finally, the most important factors effecting the species diversity variation were specified using Principle Component Analysis. The results showed that among the studied factors, elevation, slope, soil depth and lime are the most effective ones.

Keywords

  • species diversity
  • environmental factors
  • Principal component analysis
  • Shanon – Winer index
  • Sympson index
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References
 [1] Azarnivand, H.,  Jafari, M.,  Moghadam,  M. R.,  Jalili, A., Zare Chahouki, M. A., (2003). Study of the effect of soil properties and elevation changes on distribution of two species of Artemisia, case study: Rangelands of Vardavard region, Garmsar and Semnan, Iranian Natural Resources Journal. 56 (1 and 2), 93-99.
 [2]  Ardakani, M. R. (1388).  Ecology. 12th Edition. University of Tehran press.
[3] Asadi, E.,  Reisi, F.,  Mohammadi, J., (2001). The relationship between plant diversity and soil factors in Sabz kouh rangelands, Charmahal- o – Bakhtiari province. The Second National Range & Range Management Seminar In Iran. 558- 568.
[4]  Ghahraman,  A.,  Mirdavoudi, H. R., Zahedi pour, H., (2003). Study of species diversity in plant communities of Mighan Kavir in Arak.  The Second National Range & Range Management Seminar in Iran. 523- 532.
[5]  Noghi pour, A, R., Jafari, M., Jazirei, H., (1997). Study of vegetation cover depended on soil in Yazd province. Iranian Natural Resources Journal. 50(1).
[6]  Madahi, Ahmad. (2002). Study of factors effecting the distribution of plant types and their relationships with soil properties in Sirjan playa, Thesis for the degree of Masters in Science, Faculty of Natural Resources, Tehran University.
[7]  Mohajeri Borazjani, S. (1999).  Study of several salty species in Mir Mohammad-e- Ahrom region in Tangestan city. Thesis for the degree of Masters in Science, Faculty of Natural Resources, Tehran University.
[8]  Iravani M.,( 2002). Determination of environmental factors effects on plant species distribution using ordination methods, Msc. Thesis in Range management, 120.
[9] Jafari Haghighi M., 2003. Method of Soil Analysis sampling and Important Physical & Chemical Analysis with emphasis on theoretical & applied principles. Nedaye zohi press. 236 pp.
[10] Jiang Y., M. Kang, Y. Zhu, & G. Xu, 2007. Plant biodiversity patterns on Helan Mountain, China. Acta Oecologica, 32, 125-133.
[11]  Ma M., 2005. Species richness vs. evenness: independent relationship and different responses to edaphic factors. Oikos, 111, 192-198.
[12]  Mahmodi S. & M. Hakymian, (2007). Fundamental of Soil Science. University of Tehran Press, 700.
[13]  Mangurran A. E., (1988). Ecological Diversity And Its Measurement. University of Princeton Press, Princeton, NJ, 179.
[14] Zare Chahoki M.A., M. Jafari & H. Azarnivand, (2007). Relationships between species diversity and environmental factors of  Poshtkouh rangelands in Yazd, Pajouhesh & Sazandegi, 21(1), 192-199.
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Journal of Range and Watershed Managment
Volume 70, Issue 1
June 2017
Pages 257-262
Files
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  • PDF 510.78 K
History
  • Receive Date: 20 May 2013
  • Revise Date: 03 October 2013
  • Accept Date: 07 October 2013
  • First Publish Date: 22 May 2017
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How to cite
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  • Mendeley
  • BibTeX
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Statistics
  • Article View: 621
  • PDF Download: 417

APA

naghizadeh, K., jafari, M., azarnivand, H., zare chahiiki, M. A., & Abasi, H. (2017). Study of the effect of environmental factors on vegetation diversity in Eshtehard rangelands. Journal of Range and Watershed Managment, 70(1), 257-262. doi: 10.22059/jrwm.2017.61982

MLA

khadije naghizadeh; mohammad jafari; hosein azarnivand; mohamad ali zare chahiiki; Hamidreza Abasi. "Study of the effect of environmental factors on vegetation diversity in Eshtehard rangelands". Journal of Range and Watershed Managment, 70, 1, 2017, 257-262. doi: 10.22059/jrwm.2017.61982

HARVARD

naghizadeh, K., jafari, M., azarnivand, H., zare chahiiki, M. A., Abasi, H. (2017). 'Study of the effect of environmental factors on vegetation diversity in Eshtehard rangelands', Journal of Range and Watershed Managment, 70(1), pp. 257-262. doi: 10.22059/jrwm.2017.61982

VANCOUVER

naghizadeh, K., jafari, M., azarnivand, H., zare chahiiki, M. A., Abasi, H. Study of the effect of environmental factors on vegetation diversity in Eshtehard rangelands. Journal of Range and Watershed Managment, 2017; 70(1): 257-262. doi: 10.22059/jrwm.2017.61982

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