پديد آورنده :
گلپايگاني، ياسر
عنوان :
تاثير فواصل آبپاش ها بر يكنواختي ، رواناب و نفوذ در سيستم آبياري باراني كلاسيك ثابت
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
آبياري و زهكشي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
دوازده،123ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
بهروز مصطفي زاده فرد، منوچهر حيدرپور
استاد مشاور :
اسماعيل لندي، محمود فيروز فر
توصيفگر ها :
آبياري باراني , ضريب يكنواختي , يكنواختي توزيع , راندمان كاربرد , رواناب
تاريخ نمايه سازي :
10/11/89
استاد داور :
مهدي قيصري، محمد علي حاج عباسي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Effect of Sprinklers Spacings on Uniformity Runoff and Infiltration of Classic Permanent Sprinkler Irrigation System Yasser Golpayegani y172g@yahoo com September 8 2010 Department of Water Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi B Mostafazadeh Fard behrouz@cc iut ac ir M Heidarpour heidar@cc iut ac ir Abstract The use of traditional irrigation methods in farmlands causes irrigation water loss through runoff and deep percolation and also causes non uniformity of distribution of water along the field and leaching of nutrients from the root zone But the use of new irrigation methods such as pressurized irrigation methods if designed and managed properly can reduce irrigation water loss and increase the uniformity of distribution of water along the field This study was performed in 2009 at Hamedan Agricultural and Natural Resources Research Center Hamedan provine to investigate the effect of sprinklers spacings on uniformity of distribution of water infiltration and runoff To obtain better results the experiment was designed such that all sprinklers spacings were evaluated at the same field The soil for the experimental field was clay loam and the sprinklers spacings of 27 27 24 24 and 21 21 meters were evaluated for three sprinkler types of SAROO AMBO and PROOT The operating pressure for the sprinklers was 4 atmospheres The results showed that for PROOT sprinkler the highest values of coefficient of uniformity distribution uniformity and water application efficiency are belonged to sprinkler spacings of 24 24 24 24 and 21 21 meters respectively For AMBO sprinkler the highest values of the above parameters were obtained for the sprinklers spacings of 24 24 meters For PROOT sprinkler the highest values of the above parameters were obtained for the sprinklers spacings of 21 21 meters The comparison results of the above sprinklers showed that at sprinklers spacings of 21 21 meters the highest values of coefficient of uniformity distribution uniformity and water application efficiency are belonged to PROOT sprinkler These values were 86 3 79 8 and 77 7 percent respectively At sprinklers spacings of 24 24 meters the highest values of coefficient of uniformity and distribution uniformity were belonged to PROOT sprinkler but at these sprinklers spacings the highest value of water application efficiency was belonged to the AMBO sprinkler At sprinklers spacings of 27 27 meters the highest values of coefficient of uniformity and distribution uniformity were belonged to PROOT sprinkler but at these sprinklers spacings the highest value of water application efficiency was belonged to the AMBO sprinkler The results of runoff and infiltration studies for SAROO sprinkler showed that the reduction of sprinklers spacings from 27 27 meters to 21 21 meters increases runoff 10 9 percent and decreases infiltration 13 12 percent A computer program was written using MATLAB software to simulate water distribution pattern for different
استاد راهنما :
بهروز مصطفي زاده فرد، منوچهر حيدرپور
استاد مشاور :
اسماعيل لندي، محمود فيروز فر
استاد داور :
مهدي قيصري، محمد علي حاج عباسي
