Hydrological assessment of watershed management on flood characteristics (Case Study: watershed upstream of the dam Vushmgir)

Subject Areas : watershed

mahboobeh Hajibigloo ¹ , محمد رشیدی ² , آتبین محبتی ³

1 - دانشگاه گرگان
2 - دانشگاه فردوسی مشهد
3 - دانشگاه فردوسی مشهد

Received: 2017-03-11 Accepted : 2017-08-28 Published : 2017-08-23

Keywords: Watershed Management, HEC-HMS model, flood control, Hydrological Assessment, Dam Vushmgir,

Abstract :

Evaluation of watershed projects for future planning and management of natural resources based on operational plans. Accordingly, the present study aimed to assess the impact of watershed management practices implemented in the watershed upstream of the dam Voshmgir using hydrologic model HEC-HMS study. To determine the effect of corrective structures and biological actions taken, to simulate flood behavior for outcomes were available. Criteria for the assessment of peak flow and flood volume was determined and Values were calculated for both the pre and post watershed management. The results showed that the effect of these measures on peak discharge was not significant and on the amount of flooding, was significant at the 95% level. The hydrological response of the basin, increasing the return period flood events based on the impact of measures to reduce peak flow and flood volume decreases. The effect of the above parameters in the low return periods (2 to 10 years) who were the parameters of peak flow and flood volume 0.94 and 0.96 mode of action was determined. The reservoir volume correction factors before deposition reveals that flood control capability to have a return period of 10 years.

References:

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