نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش‌آموخته کارشناسی ارشد علوم و مهندسی آبخیز، دانشکده منابع طبیعی و علوم زمین، دانشگاه شهرکرد، شهرکرد، ایران.
2 استادیار آبخیزداری، دانشکده منابع طبیعی و علوم زمین، دانشگاه شهرکرد، شهرکرد، ایران
3 دکتری علوم و مهندسی آبخیز، شرکت آب و نیروی ایران، یزد، ایران
چکیده
فناوری بارورسازی ابرها راهکاری جدید و نسبتا موثر جهت کاهش اثرات خشکسالی و افزایش آب در دسترس است. بارورسازی ابرها از منعطف‌ترین و به صرفه‌ترین راه‌های مدیریت منابع آب است که می‌تواند موجب افزایش 10 تا 30 درصدی بارندگی سالانه شود. حوزه آبخیز بهشت آباد که در سراب حوزه‌ی آبخیزکارون واقع است، می‌تواند مستعد بارورسازی ابرها در استان چهارمحال و بختیاری باشد. بنابراین با استفاده از داده‌های فیزیوگرافی و هواشناسی پتانسیل زمانی و مکانی بارورسازی ابرها در این منطقه بررسی شد. نتایج نشان داد که 43/25 درصد مناطق حوزه آبخیز بهشت‌آباد که بیشتر در منطقه جنوب غربی حوضه قرار دارد، برای بارورسازی ابرها مناسب می‌باشد. در ادامه به بررسی کارایی مدل IHACRES به منظور شبیه‌سازی رواناب خروجی از حوزه پرداخته شد. سپس با استفاده از مدل IHACRES رواناب حوزه آبخیز بهشت‌آباد برای یک سال نرمال شبیه‌سازی شد. دو سناریو افزایش ده درصد بارش ماه فوریه و افزایش ده درصد بارش در شش ماه سال یعنی ماه‌های فوریه، ژانوبه، دسامبر، مارس، نوامبر و آوریل (نسبت به یک سال متوسط) مورد آزمون قرار گرفت. نتایج نشان داد که افزایش ده درصدی بارش در ماه فوریه 6/3 درصد و افزایش ده درصدی بارش در شش ماه مذکور 7/13 درصد به حجم آورد سالانه رودخانه بهشت‌آباد اضافه می‌کند. همچنین 10 درصد افزایش بارش در دو سال نمونه ترسالی و خشکسالی مقایسه شد. نتایج نشان داد اثر بارورسازی ابرها در خشکسالی بیشتر است.
کلیدواژه‌ها
عنوان مقاله [English]
Predicting the effect of cloud seeding on runoff in Beheshtabad watershed using IHACRES model
نویسندگان [English]
- Abbas Rezaeai Haroni 1
- Rafat Zare Bidaki 2
- samaneh poormohammadi 3
1 Nature Engineering, Faculty of Natural Resources and Earth Science, Shahrekord University
2 Department of Nature Engineering, Faculty of Natural Resources and Earth Sciences, Shahrekord University
3 yazd university
چکیده [English]
Cloud seeding is a new and efficient approach to deal with water scarcity and mitigate the effects of drought. Cloud seeding is one of the most flexible and cost effective ways for water resources management that can cause 10 – 30 percent increase of yearly precipitation. The Beheshtabad watershed is located in the uplands of Karoon river, can be one of the areas in Chaharmahal-va-Bakhtiari Province, that prone to cloud seeding. So we investigated the potential of cloud seeding in this region using physiography and meteorological data. The results show that 25.4 percent of study area (in the southwest) has the potential of cloud seeding. The runoff of Beheshtabad watershed was modeled in IHACRES. Two scenarios of a 10% increase in precipitation of February and a 10% increase in precipitation of the six months (in an average year) were tested. The results showed that a 10 percent increase in precipitation in February added 3.6 percent and a 10 percent increase in precipitation in the six months added 13.7 percent to the annual flow of Beheshtabad River. Also, a 10% increase in precipitation in a dry and humid year was compared, and the results show that the effect of cloud seeding is greater in drought.
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