Drought changes trend in Khuzestan Province, Iran

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Research Paper 01/04/2015
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Drought changes trend in Khuzestan Province, Iran

Ali Asareh, Ebrahim Amiri
J. Bio. Env. Sci.6( 4), 353-360, April 2015.
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Iran is a dry country suffering from water crisis. With respect to the role of surface waters in the region ecosystem and the effect of drought on quantity and quality of waters, the present study was carried out to investigate drought changes trend in Khuzestan Province. Therefore, the annual rainfall statistics of synoptic stations in Dezful, Shooshtar,Behbahan, Abadan, MasjedSoleiman, Ahvaz, and Izeh were used for a period of 20 months. The accuracy and of the dataand homogeneity were tested through the run test and double mass analysis. Then, the frequency and severity of drought were studied based on the implementation of standardized precipitation index (SPI). In order to investigate drought changes trend in selected stations, 5-year moving mean was used. The obtained results showed that 10 cases of drought in Ahvaz station, 11 ones in Dezful station, 12 ones in Abadan station, 10 ones in Masjed Soleiman station, 10 ones in Behbahan station, 11 ones in Izeh station, and 8 ones in Shooshtar station had occurred. The results of the research showed that in all stations except Shooshtar station more than 50% of drought period had occurred and the trend is quite evident in the 5-year moving mean of the data. The results also indicated that in all stations the changes of 5-year moving mean had a decreasing trend and the reduction was equal to 54.55% in Abadan station, 45.58% in Ahvaz station, 49.20% in Behbahan station, 41.53% in Izeh station, 51.09% in MasjedSoleiman station, 42.20% in Dezful station, and 41.64% in Shooshtar station.


Farajzadeh M, MovahedDanesh A, Ghaemi H. 1995. Drought in Iran. Journal of Agriculture, 5(1,2), Tabriz University.

Hashemi Devin M, Ahangar Zadeh Z. 2013. Monitoring meteorological drought in North Khorasan Province in GIS environment. The First National Conference on Climate, Kerman.

Hong WU, Hayesi JM, Weiss A, Qihn. 2001. an evaluation of the standardized presipitationindx, The china –z index and the statitcal z-score. International journal of climatology, vol. 21, pp.745-758.

Khalili Eghdam N, Mosaedi A, Latifi N. 2007. Investigating drought and its occurrence trend in Uremia. Journal of Agriculture and Natural Resources, 4(5): Special Issue of Crop and Plant Breeding.

Palmer WC. 1965. Meteorological drought. USWB. Res. Paper no. 45.

Pashiardis S, Michaelides S. 2008. Implementation of the standardized precipitation indx(SPI) and the reconnaissance drought indx (RDI) for regional drought assessment :A case study for cyprus . europen water . nol.23/24,pp.57-65.

SarySarraf B, GholiNejad N, Kamani A. 2011. Investigating drought and wet periods in Aras basin using precipitation-based profiles. Quarterly of Lar Natural Geography, 4 (12).

Shahian R, Jamea A, Mostamand R, Haghighat M, Dehghan H. 2011. Zoning crisis threshold of Fars Province droughts by means of standardized precipitation index (SPI) to achieve drought risk management.

Wilhite DA, Glantz MH. 1985. understanding the droght phenomenon: the role of definitions, water international,vol . 10, pp.111-120.

Zare’ Abyaneh H, Mahboobi A. 2004. Investigating drought conditions and its trend in Hamadan based on drought statistical indices. Research and productivity in agriculture and horticulture, No. 66, fall 2004.