The most important environmental effective factors on Dorema aucheri Boiss. dispersion in rangelands Lorestan province

Subject Areas : forest

amir mirzaei mousivand ¹ ( دانشجوی دکترای مرتعداری دانشکده فناوری کشاورزی و منابع طبیعی دانشگاه محقق اردبیلی )
بهنام بهرامی ² ( )

Received: 2016-12-13 Accepted : 2016-12-13 Published : 2016-02-20

Keywords: Cluster analysis, Lorestan province, Environmental factors, discriminant function, Dorema aucheri Boiss,

Abstract :

Abstract The aim of present the study was assessing the relationship betweenDorema aucheri dispersion. At first, 60 sites were selected in Delfan County. In each site 3 transects with 100 m length and 10 4-square meter along transects was established and canopy cover and species density then studied. Then at the first, mid and end of transect, soil samples were collected in 0-30 cm depth. Height, slope, aspect and some soil properties, including texture, electrical conductivity, acidity, organic matter, phosphorus, potassium and nitrate were determined. Cluster analysis, independent t test, discriminant function and principle component analysis were used for analyzing the data. The results of cluster analysis indicated that the sites were separated into two main groups. Also the results showed that studied species have the most presence in height of 2345 m, at the slope more than 80 percent, southwestern and western aspect, temperature more than 10 degrees, precipitation 498 mm, soils with 1.63 percent organic matter, and less sand, and more silt and clay. The results of discriminant function and principle component analysis indicated that at the first level height, precipitation, temperature and some soil parameters like sand, silt and organic matter and at the second level aspect and other soil characteristics like pH and potassium are effective in the studies species dispersion. According the results of the present study, this fact is documentable that the studied species is suitable for restoration in rangeland. 

References:

References

1. Abbadi, G.A. and El Sheikh, M.A. 2002, Vegetation analysis of Failaka Island (Kuwait), Journal of Arid Environments, 50: 153-163.


2. Abd El-Ghani, M., Soliman, A. and Abd El-Fattahr, R. 2014, Spatial distribution and soil characteristics of the vegetation associated with common succulent plants in Egypt, Turkish Journal of Botany, 38: 550-565.


3. Cimalova´, S. and Lososova, Z. 2009, Arable weed vegetation of the northeastern part of the Czech Republic: effects of environmental factors on species composition, Plant Ecology, 203: 45–57.


4. Davies, K.W., Bates, J.D. and Miller, R.F. 2006, Vegetation characteristics across part of the Wyoming big sagebrush alliance. Rangeland Ecology & Management, 59: 567–575.


5. Fahimipour, A., Zare Chahouki, M.A., A.Tavili. 2011. Examination of relashanship some dominant species rangeland with environmental factors. Case study: middle Taleghan. Journal of Rangemanegement. 4(1): 23-32.(In pershian).


6. Fisher, F.M., Zak, J.C. Cunningham, G.L. and Whitfor, W.G. 1987, Water and nitrogen effects on growth and allocation pattern of creosote bush in northern Chihuahuan Desert. Journal of Range Management, 41:384-391.


7. Ghorbani, A., J, Sharifi., A.H, Kavianpoor., B, Malekpour & F ,Mirzaei Aghche Gheshlagh.2013. Investigation on ecological characteristics of Festuca ovina L. in south-eastern rangelands of Sabalan. Iranian Journal of Range and Desert Reseach, Vol. 20 No. (2),390-396.(In pershian).


8. Jafari,M., A. Tavili, M. Rostampour3, M. A. Zare Chahouki & J. Farzadmehr.2009. Investigation of environmental factors affecting vegetation distribution in the Zirkouh rangelands of Qaen. Journal of Range and Watershed Management, Iranian Journal of Natural Resources, Vol. 62, No. 2, 2009. pp.197-213.(In pershian).


9. Kazemi, S.E., A.A,Shahmoradi., M,Padyab., A,Shafiee., & Y, Ghasemi Aryan,. Autecology of Dorema aucheri in Rangeland Ecosystems of Kohgiloye and Boyerahmad Province. Iranian journal of Range and Desert Reseach, Vol. 17 No. (4),564-574.(In pershian).


10. Kent, M. and Coker, A. 1992, Vegetation description and analysis, John Wiley & Sons, England.


11. Leonard, J. 1998, Relationships between vegetation cover and soil in arid and semi arid area. Research Institute of Forests and Rangelands. USA.

12. Moghimi, J. 2006. Introduction some of important species rangeland for development and rehabilitation of rangelands. Arvan publication. 283p.(In pershian).

1. Mohtashamnia, S., 2012. Examination of the most important environmental factors effective on genus dispereding Artemisia in Fars province. Journal of natural ecosystem Iran. 1(3): 75-86.(In pershian).


2. Mozafarian, V.A. 2001. Flor of Yazd. Yazd publication. 439p.(In pershian).


3. Northup, B.K., Brown, J.R. and Holt, J.A. 1996, Grazing impact on the spatial distribution of soil microbial biomass around tussock grasses in tropical grassland. Journal Applied Soil Ecology, 13:259-270.


4. Shaykhhosayni, A.R., F,Norbakhsh. 2008. Impact of kind of soil and plant little on mineralization of N pure. Journal of Pajouhesh and Sazandeghi. 2:127-133.(In pershian).


5. Shokrolahi, Sh.,H.R, Moradi, GH.A. Dianatitilaki,2013. Examination of some environmental factors on Agropyron cristatum species dispersing . Case study sumer Range land of Poulor. Journal of Pajouhesh and Sazandeghi. 97:111-119.(In pershian). 


6. Sperry, J.S. and Hacke, U.G. 2002, Desert shrub water relations with respect to soil characteristics and plant functional type, Journal of Functional Ecology, 16: 367–378.


7. Vetaas, O.R. and Gerytnes, J.A. 2002, Distribution of vascular plant species richness and endemic richness along the Himalayan elevation gradient in Nepal. Global Ecology and Biogeography, 11: 291-301.


8. Zare Chahouki, M.A., A.Zarei., M.Jafari. 2013. Study relationship of some environmental factor with vegetation dispersing in Danbalid Raleghan rangeland. Journal of Pajouhesh and Sazandeghi. 94: 65-73.(In pershian).


9. Zare Chahouki, M.A.2014. Analysis data in researches natural resource by using spss softbar. Jehad Daneshgahi. 310p.(In pershian).


10. Zarehesari, B., A.Ghorbani,F, Azimi moazem., K, Hashemi majd., A.Asghari.2015. Ecological factors of effective on species dispersing Artemisia fragrans Willd in south west slope Sabalan. Journal of Rangemanegement. 8(3): 225-237.(In pershian).

Zho, M., Hastie, T.J. and Walther, G. 2005, Constrained ordination analysis with