Investigation of Hydrological Methods of Environmental Flow Determining for Protected River Kashafrood in Mashhad Area

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ENAYATI HAMID; Ghezelsoofloo Abbas Ali; KHAMCHIN MOGHADAM FARHAD

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Journal: Iranian Journal of Irrigation and Drainage Year:2020 | Volume:13 | Issue:6 Page(s): 1698-1708

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Title

Investigation of Hydrological Methods of Environmental Flow Determining for Protected River Kashafrood in Mashhad Area

Author(s)

ENAYATI HAMID | Ghezelsoofloo Abbas Ali | KHAMCHIN MOGHADAM FARHAD | Issue Writer Certificate

Keywords

Hydrological methodsQ1

Environmental FlowQ1

KashafroodQ1

SWOT AnalysisQ1

Abstract

Iran is facing with limited freshwater resources, on the one hand, it is increasing demand for water for various uses, on the other hand. One of the most important challenges in planning water resources is the determination of Environmental Flow into the rivers. Environmental Flow describes the time, quality, and amount of flow needed to maintain the aquatic ecosystem. Protected rivers are widely protected with a high conservation value, aimed at preserving and restoring plant habitats. Protected areas are suitable environments for conducting educational and environmental studies. Kashafrood Protected River is part of the Qara-e-Ghom basin of Iran located in the northeast of the country and in the north of Khorasan Razavi province. The basin has 15650 km of area. To maintain ecosystems in this area, it is essential to determine minimum Environmental Flow. Today, Environmental Flow of the rivers are estimated by various methods, among which hydrological approaches are the most widely used ones. In this paper, Environmental Flow of the Kashafrood Protected River is estimated on the basis of the 39-year statistical period in the Olang Asadi station using hydrostatic methods of Tessman and Transmission curve continuity flow (Smakhtin). The required flows were obtained and then, using SWOT Analysis, according to the internal and external characteristics of each method, the most suitable approach for determining the Environmental Flow of Kashafrood River was presented. The minimum Environmental Flow in the Tessman method was 1. 57 and in Smakhtin method, the continuity curve was 1. 85. Using the SWOT Analysis, internal and external evaluation matrices of the internal and external assessment matrix were used to convey the continuity curve of 3. 64 and 3. 53, which was selected as the appropriate method in comparison to the Tessman method.

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APA: Copy

ENAYATI, HAMID, Ghezelsoofloo, Abbas Ali, & KHAMCHIN MOGHADAM, FARHAD. (2020). Investigation of Hydrological Methods of Environmental Flow Determining for Protected River Kashafrood in Mashhad Area. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 13(6 ), 1698-1708. SID. https://sid.ir/paper/131794/en

Vancouver: Copy

ENAYATI HAMID, Ghezelsoofloo Abbas Ali, KHAMCHIN MOGHADAM FARHAD. Investigation of Hydrological Methods of Environmental Flow Determining for Protected River Kashafrood in Mashhad Area. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2020;13(6 ):1698-1708. Available from: https://sid.ir/paper/131794/en

IEEE: Copy

HAMID ENAYATI, Abbas Ali Ghezelsoofloo, and FARHAD KHAMCHIN MOGHADAM, “Investigation of Hydrological Methods of Environmental Flow Determining for Protected River Kashafrood in Mashhad Area,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 13, no. 6 , pp. 1698–1708, 2020, [Online]. Available: https://sid.ir/paper/131794/en

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