كليدواژه :
ﺑﻨﺪﺳﺎر , داﻧﺶ ﺑﻮﻣﯽ , رﯾﺎب , ﻓﺮﻣﻮل ﻟﯿﺴﯽ
چكيده فارسي :
ﭼﮑﯿﺪه در ﮐﺸﻮرﻫﺎي ﺧﺸﮏ و ﻧﯿﻤﻪ ﺧﺸﮏ ﻣﺎﻧﻨﺪ اﯾﺮان ﮐﻪ ﻫﻤﻮاره ﺑﻪ دﻟﯿﻞ ﺗﻨﺶ ﻫﺎي اﻗﻠﯿﻤﯽ ﺑﺎ ﻣﺸﮑﻼت ﺗﺄﻣﯿﻦ آب در ﺑﺨﺶ ﻫﺎي ﻣﺨﺘﻠﻒ ﻣﻮاﺟﻪ ﻣﯽ ﺷﻮﻧﺪ، اﻫﻤﯿﺖ ﻣﺪﯾﺮﯾﺖ روان آب ﻫﺎي ﺳﻄﺤﯽ اﯾﺠﺎدﺷﺪه در ﺣﻮزه ﻫﺎي آﺑﺨﯿﺰ، ﺑﯿﺶ ازﭘﯿﺶ ﻣﺸﺨﺺ ﻣﯽ ﺷﻮد. ازﺟﻤﻠﻪ ﻣﺆﻟﻔﻪ ﻫﺎي ﻣﺪﯾﺮﯾﺖ ﻣﻨﺎﺑﻊ آﺑﯽ در ﻫﺮ ﻣﻨﻄﻘﻪ اي، اﺑﺘﮑﺎرات ﻣﺮدم ﺳﺎﮐﻦ در درون و اﻃﺮاف ﺣﻮزه ﻫﺎي آﺑﺨﯿﺰ ﺑﺮ اﺳﺎس داﻧﺶ ﺑﻮﻣﯽ و ﺗﺠﺮﺑﯽ ﺧﻮد ﻣﯽ ﺑﺎﺷﺪ. ﻫﺪف از اﯾﻦ ﭘﮋوﻫﺶ ﺑﺮرﺳﯽ ﺗﺄﺛﯿﺮ ﺑﻨﺪﺳﺎرﻫﺎي ﺑﻮﻣﯽ ﻣﻮﺟﻮد در ﺣﻮزه آﺑﺨﯿﺰ رﯾﺎب ﺑﺮ ﻣﯿﺰان ﮐﺎﻫﺶ ﺳﯿﻼب ﻫﺎي ﺣﺎﺻﻞ از ﺣﺪاﮐﺜﺮ ﺑﺎرش ﻫﺎي 24 ﺳﺎﻋﺘﻪ ﺑﺎ دوره ﺑﺎزﮔﺸﺖ ﻫﺎي ﻣﺨﺘﻠﻒ ﻣﯽ ﺑﺎﺷﺪ. ﻧﺘﺎﯾﺞ ﺗﺤﻘﯿﻖ ﻧﺸﺎن ﻣﯽ دﻫﺪ ﮐﻪ ﺣﺠﻢ ﺳﯿﻼب ﻫﺎي اﯾﺠﺎدﺷﺪه ﺣﺪاﮐﺜﺮ ﺑﺎرش ﻫﺎي 24 ﺳﺎﻋﺘﻪ ﺑﺮ اﺳﺎس فرمول ليسي در دوره بازگشت‌هاي 2 و 5 ساله به ترتيب 5/35 و 7/17 ميليون مترمكعب و در دوره بازگشت‌هاي 10 500 ،200 ،100 ،50 ،25 ﺳﺎﻟﻪ ﺑﻪ ﺗﺮﺗﯿﺐ 16/21 ،14/17 ،12/73 ،11/39 ،10/09 ،8/44 ﻣﯿﻠﯿﻮن ﻣﺘﺮﻣﮑﻌﺐ ﻣﯽ ﺑﺎﺷﺪ. ﺑﻨﺪﺳﺎرﻫﺎي اﯾﺠﺎدﺷﺪه در ﻣﻨﻄﻘﻪ ﺑﺎ ﺣﺠﻢ ﺳﯿﻞ ﮔﯿﺮي 8/36ﻣﯿﻠﯿﻮن ﻣﺘﺮﻣﮑﻌﺐ ﺗﺄﺛﯿﺮ ﺑﺴﯿﺎر زﯾﺎدي در ﮐﻨﺘﺮل ﺳﯿﻼب ﻫﺎي اﯾﺠﺎدﺷﺪه دارد ﺑﻪ ﻃﻮري ﮐﻪ ﺳﯿﻼب ﻫﺎي اﯾﺠﺎدﺷﺪه در اﺛﺮ ﺣﺪاﮐﺜﺮ ﺑﺎرش 24 ﺳﺎﻋﺘﻪ در دوره ﺑﺎزﮔﺸﺖ ﻫﺎي 2 و 5 ﺳﺎﻟﻪ ﺑﻪ ﮐﻠﯽ ﮐﻨﺘﺮل ﻣﯽ ﺷﻮد و رواﻧﺎﺑﯽ از ﺣﻮزه ﺧﺎرج ﻧﻤﯽ ﺷﻮد.
چكيده لاتين :
In arid and semi-arid countries such as Iran, which are always faced water supply problems in various sectors due to climate stress, the importance of surface runoff management in watersheds is becoming increasingly apparent. One of the components of water resources management in each region is the initiatives of people living in and around watersheds based on their indigenous and empirical knowledge. The purpose of this study is to investigate the effect of native water-spreading weirs in the Riab watershed on the reduction of floods resulting from maximum 24-hour rainfall with different return periods. The results show that the volume of floods generated from maximum 24-hour rainfall according to Lacey’s formula in the return period of 2 and 5 years are 5.35 and 7.17 million cubic meters, respectively, and in the return period of 10, 25, 50, 100, 200, 500 years, the flood volumes are 8.44, 10.09, 11.39, 12.73, 14.17, 16.21 million cubic meters, respectively. The water-spreading weirs created in the region with a flood volume of 8.36 million cubic meters have a great impact on the control of the floods created so that the floods created by the maximum 24-hour rainfall in the 2 and 5 year return periods are completely controlled and runoff does not leave the basin.
