Volume 21, Issue 2 (2017)                   MJSP 2017, 21(2): 35-55 | Back to browse issues page

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The effects of watershed management practices in Hydro-geomorphological characteristics in Anbaranchay watershed. MJSP 2017; 21 (2) :35-55
URL: http://hsmsp.modares.ac.ir/article-21-5891-en.html
Abstract:   (8104 Views)
Abstract The most appropriate option for flood control in accordance with environmental conditions is watershed management, which has different effects on the hydrological factors, including the amount of surface runoff, sedimentation rate and the permeability in the watershed. The purpose of this study is to simulate and assess changes in surface runoff, sedimentation rate and the permeability using semi-distributed SWAT model in two periods before and after watershed management in the Anbaranchay Watershed. The results showed that the rate of sedimentation in the upstream before watershed management was 22.14 T/ha and after watershed sediment yield per hectare has decreased to 1.84T. Also, the simulation results showed that the amount of CN has changed from 75.68 to 61.24 in watershed and an increase in permeability and the flow lateral is observed. The SWAT model estimated the evapotranspiration 157.4 mm to Anbaranchay watershed. Changes in the hydrological cycle in plain sedimentary region has left the greatest impact. It seems that the SWAT model is able to simulate the hydrological cycle processes and geomorphological studies and provide valuable information.
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Subject: planning models,techniques and methods
Received: 2016/04/19 | Accepted: 2017/03/5 | Published: 2017/06/22

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