General Information
    • ISSN: 2010-0264 (Print)
    • Abbreviated Title: Int. J. Environ. Sci. Dev.
    • Frequency: Monthly
    • DOI: 10.18178/IJESD
    • Editor-in-Chief: Prof. Richard Haynes
    • Executive Editor: Ms. Nancy Y. Liu
    • Abstracting/ Indexing: Scopus (Since 2019), Chemical Abstracts Services (CAS), EBSCO, CABI, Ulrich Periodicals Directory, Electronic Journals Library, Crossref, ProQuest.
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The University of Queensland, Australia
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IJESD 2010 Vol.1(5): 387-391 ISSN: 2010-0264
DOI: 10.7763/IJESD.2010.V1.75

Water Harvesting and Urban Centers in Dryland Alluvial Megafans: Environmental Issues and Examples from Central Iran

N. Arzani

Abstract—Underground and surface water harvesting systems in alluvial fans were among the very important environmental control on urban growths in drylands. Traditional underground water supply systems, known as Qanats (kareeze), were used for centuries as a very efficient method for water harvesting in arid lands of central Iran. Surface flood-water harvesting methods have also been recently applied for aquifer recharge in such environmental setting. However, climatic changes, increasing population and industrialization, during the last five decades, made that the water resources quite inadequate and a competition happened to pump out water from the shallow to deep aquifers of the alluvial-fan systems. This resulted in serious environmental problems, depending on the geographic positions of the urban areas on the fan surface. Desertification, wind erosion/deposition, water and soil salinity crisis and immigrations affected and especially concentrated in the cities and villages located in the down-fan areas. This paper, based on lessens learned from some of the implemented cases in Iran, examines the water harvesting projects in different types of alluvial megfans under arid to semi-arid environmental conditions. It is very important to consider the type of alluvial fans to apply any method for water harvesting projects.

Index Terms—Alluvial megafans, dryland, flood-water harvesting, Qanats.

Geology Department, University of Payame Noor, Esfahan, Iran(Email:


Cite: N. Arzani, "Water Harvesting and Urban Centers in Dryland Alluvial Megafans: Environmental Issues and Examples from Central Iran," International Journal of Environmental Science and Development vol. 1, no. 4, pp. 387-391, 2010.

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