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Volume 18, Issue 58 (8-2004)

Flooding ranks very high among the natural disasters in Iran which causes human misery and economic hardship in different part of the country. Floodwater spreading can be considered as a cost-effective method for optimal utilization of floodwater for artificial recharge, vegetation recovery, and reduction of flood damages. In this research selection of proper areas for floodwater spreading in Meimeh basin were concerned. For this purpose different thematic maps including slope, infiltration rate, transitivity, sediment thickness, and water quality were produced based on satellite images, aerial photos, and field survey. The thematic layers were input in a geographic information system (GIS). All layers were classified to several classes based on existing criteria. The classes in the thematic layers were analyzed and integrated using a decision support system (DSS). The generated criterion through the model was verified with applying the model for a number of successful floodwater spreading stations in Iran, to ascertain the validity of the model. The verification of the model indicated in general, satisfactory results for all the stations. The result indicates that in Meimeh basin, about 10 percent of the study area is considered suitable and 70 percent moderately suitable for artificial recharge with floodwater spreading.

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