نشریه آبیاری و زهکشی ایران

نشریه آبیاری و زهکشی ایران

بررسی تأثیر عوامل محیطی بر توانایی سیستم کجاوه در استحصال آب

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانش آموخته دکتری آبیاری و زهکشی، دانشکدگان کشاورزی و منابع طبیعی، دانشگاه تهران، کرج، ایران.
2 استاد گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج
3 گروه مهندسی آبیاری و آبادانی، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی منابع طبیعی، دانشگاه تهران، کرج، ایران.
چکیده
استحصال آب در محل، تنها یکی از تکنیک های استحصال آب باران است که شامل طیف وسیعی از روش های سنتی و نوآورانه می باشد. با اعمال مدیریت صحیح و احداث مکانیزه آن، می توان کارایی این روش ها را را بهبود بخشید. با الگوگیری از معماری سنتی ایران و اصلاح روش‌های موجود استحصال آب باران، سیستم استحصال آب کجاوه برای کشت گیاه و یا تغذیه آبهای زیرزمینی به‌صورت تکرار مخروط‌های معکوس طراحی شده است. به منظور بررسی عوامل موثر بر سیستم کجاوه، در این مطالعه 13 تیمار مختلف مورد بررسی قرار گرفت. نتایج نشان داد ساختاری با قطر پایه و ارتفاع مخروط خاص، که با توجه به شرایط اقلیمی و جغرافیایی منطقه تعیین می شود، دارای بیشترین عملکرد در استحصال آب می باشد. با توجه به شرایط اولیه متفاوت برای این تیمارها، ساختاری با شیب دیواره 3/0 متربرمتر، قطر پایه مخروط برابر با 50 سانتی‌متر، خاک لوم، شدت بارندگی 12 سانتی‌متر در ساعت و طول مدت بارندگی 10 دقیقه، بهترین نتایج از نظر استحصال آب باران را به همراه داشت و به صورت میانگین 9/14 درصد آب بیشتری نسبت به حالت بدون ساختار در منطقه هدف فراهم کرد.
کلیدواژه‌ها

عنوان مقاله English

Investigating the effect of environmental factors on the ability of the Kajaveh system in water harvesting

نویسندگان English

MohammadReza Hami Kouche Baghi 1
Teymour Sohrabi 2
Arezoo Nazi Ghameshlou 3
1 Ph.D. graduate, Dept. of Irrigation and Reclamation Engineering, Univ. College of Agriculture and Natural Resources, Univ. of Tehran, Karaj, Iran.
2 The associate professor of Irrigation and Development Engineering Group, Faculty of Agriculture Engineering & Technology, Agriculture and Natural Resources Campus, University of Tehran,karaj
3 Department of Irrigation & Reclamation Engineering Faculty of Agronomy Engineering & Technology College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
چکیده English

In-Site water harvesting is just one of the rainwater harvesting techniques with a wide range of traditional and innovative methods. Its efficiency can be improved by applying proper management and mechanization. By following the traditional architecture of Iran and modifying the existing rainwater harvesting methods, designed an In-Site water harvesting system for planting or groundwater feeding, called the Kajaveh, as a matrix of inverted cones. In order to study the influential factors on the Kajaveh system, 13 different treatments were examined. The results indicate that there is a specific base diameter and cone height which were determined according to the climatic and geographical conditions of the region and lead to the optimal operation of the Kajaveh system in water harvesting. Considering the different initial conditions for these treatments, results indicated that the case with a wall slope of 0.3 m/m, cone base diameter of 50 cm, loam soil, rainfall intensity of 12 cm/h, and rainfall length of 10 min, to yield the best rainwater harvesting results and on the average provided 14.9% more water than the unstructured state in the target area.

کلیدواژه‌ها English

Erosion
Rainfall length
Rainfall Intensity
Soil Management
Water Harvesting system
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