Aquatic of Ecosystem management and Restoration Rivers

Document Type : Research Article


1 Department of Water Engineering, Gorgan University of Agricultural Sciences and Natural Resources

2 Associated Professor, Water Engineering Department, College of Water and Soil Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran


Ecosystems management of river and water flow necessary for continuity of life and ecological sustainability of river based systems, requires recognition of environmental flows in the politics and intentions of water resource development projects and inclusion it in watershed management programs. In order to, in this research were analysis application of hydrological methods (Tennant, Tessman, Flow Duration Curve, Smakhtin, Arkansas, FDC-Shifting and DRM) and ecohydraulic habitat suitability simulation model (SEFA) in the environmental flows assessment of Qarasoo River in Golestan Province in interval of hydrometry stations Ghazmahalleh and Siahab, respectively with mean annual flow of 0.26 and 1.92 m3/s for restoration habitat, natural resurrection and conservation of biodiversity. The investigating provision of optimal flow ecosystem with field studies and measurements hydraulic and qualitative characteristics of the river in order to identify the favorable conditions of Capoeta capoeta gracilis hierarchical habitat showed would have the maximum and minimum flow regime required to preservation the Qarasoo river ecosystem according to ecological needs in months of april and september is estimated to order equivalent 3.11 and 0.48 m3/s, with average annual 1.6 m3/s (equivalent 83 percent of natural stream of the river). The results of study show environmental menaces will follow using the values obtained from simple hydrological methods Tennant, Smakhtin and Flow Duration Curve in water resource planning of this river , by contrast ecohydraulic model of SEFA can provide a general croquis of habitat suitability in intervals different of river relative to regime changes natural flow and attainment to optimal


Main Subjects

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Volume 6, Issue 3
September 2019
Pages 719-737
  • Receive Date: 11 February 2019
  • Revise Date: 10 June 2019
  • Accept Date: 10 June 2019
  • First Publish Date: 23 September 2019