Seyyed Abdolhossein ARAMİ
(Gorgan University of Agricultural Sciences and Natural Resources, Departments of Watershed Management and Arid Zone Management, Gorgan, Iran)
(Gorgan University of Agricultural Sciences and Natural Resources, Departments of Watershed Management and Arid Zone Management, Gorgan, Iran)
(Sari University of Agricultural Sciences and Natural Resources, Department of Watershed Management, Sari, Iran)
(Lorestan University, Department of Watershed Management, Lorestan, Iran)
Ebrahim Karimi SANGCHİNİ
(Sari University of Agricultural Sciences and Natural Resources, Department of Watershed Management, Sari, Iran)
Yıl: 2017Cilt: 67Sayı: 1ISSN: 0535-8418 / 1309-6257Sayfa Aralığı: 13 - 21İngilizce

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Prioritization of watersheds in order to perform administrative measures using fuzzy analytic hierarchy process
Prioritization of watersheds in order to perform administrative measures is necessary and inevitable. Determining areas of top priority for flood control projects is a managerial decision that should be approved by studies of physical, social and economic status of the region of interesrt and by assessing the outcomes of the past operations. Therefore, the aim of this research was to study morphological and physiographic characteristics, and to use geographic information systems (GIS) and multi-criteria decision-making methods (MCDM), to identify the critical sub-basins which have the tendency to be destructed, in Galikesh watershed, Golestan province. This watershed is important, yet critical, in terms of land use change, erosion and flooding in the Golestan Province, Iran. In total, nine morphological parameters were used to prioritize sub-watersheds using fuzzy analytic hierarchy process (FAHP). The morphological parameters were by some means linked to watershed drainage system. Based on FAHP approach, sub-basins, as vulnerable zones, have been evaluated and cetegorized in five priority levels (very low, low, medium, high and very high levels). The results showed that 44.44% and 22.22% of sub-basins were categorized respectively under average, and high to very high levels, suggesting that the conservation and management measures are essential in order to maintain stability in the region. Thus, the FAHP technique is a practical and convenient method to show potential zones in order to implement effective management strategies, especially in areas where data availability is low and soil diversity is high. Finally, it can be said that without having to encounter high costs and a waste of time, sub-basins could be categorized by means of morphometric parameters in order to implement conservational measures to simutaneously conserve soil and the environment.
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