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:: Volume 4, Issue 2 (10-2016) ::
2016, 4(2): 11-24 Back to browse issues page
The Evaluation of the Effect of Extensive Green Roof on the Reduction of Urban Runoff (Case Study of Residential Buildings in Region 6 of Tehran)
Leila Ooshaksaraie * , Noshin Akbari amin
Lahijan Branch, Islamic Azad University
Abstract:   (4528 Views)

In recent years the importance of flood control and management in urban areas has increased due to the development of urbanization and environmental pollution. The green roof technology is used in many parts of the world and seems an appropriate technique to reduce runoff. The lack of surface water collection systems has caused the flow of water on the streets in Tehran. The aim of this study is to simulate the effect of extensive green roof of residential buildings to reduce urban runoff in Tehran. For this purpose, a survey of the study area was performed in GOOGLE EARTH, and the area of the roof of buildings were analyzed using AUTOCAD software. Then, simulated green roof performance based on mass balance for a typical roof and three extensive green roofs with the soil thickness of 25 mm and the vegetation area of 25%, 50% and 75% and the hydraulic relationships between water and soil were compared using CROPWAT software. The results show that the highest decrease in runoff for extensive green roof with the vegetation of 25%, 50% and 75% is respectively 12/59%, 24/59% and 36/58% in comparison with the typical roof. The study shows whenever the vegetation area of the green roof is more; the run-off from the similar rainfall will be less. Thus, the green roof can be raised as a method to reduce runoff in Tehran.

Keywords: Green roof, Mass balance, Reduction of runoff, Tehran, Urban flood management
Full-Text [PDF 1098 kb]   (112 Downloads)    
Type of Study: Research | Subject: Special
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Ooshaksaraie L, akbari amin N. The Evaluation of the Effect of Extensive Green Roof on the Reduction of Urban Runoff (Case Study of Residential Buildings in Region 6 of Tehran). Journal of Rainwater Catchment Systems 2016; 4 (2) :11-24
URL: http://jircsa.ir/article-1-139-en.html


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Volume 4, Issue 2 (10-2016) Back to browse issues page
مجله علمی سامانه های سطوح آبگیر باران Iranian Journal of Rainwater Catchment Systems
تکمیل و ارسال فرم تعارض منافع
نویسنده گرامی ، پس از ارسال مقاله ، جهت دریافت فرم، لطفا بر روی کلمه فرم تعارض منافع کلیک نمایید و پس از تکمیل، در فایل های پیوست مقاله قرار دهید.
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