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ارزیابی عملکرد زمانی و مکانی بهرهبرداری و مدیریت تحویل آب در شبکه آبیاری یامچی اردبیل | ||
| تحقیقات مهندسی سازه های آبیاری و زهکشی | ||
| مقاله 9، دوره 19، شماره 71، شهریور 1397، صفحه 113-128 اصل مقاله (1.35 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/idser.2017.110602.1220 | ||
| نویسندگان | ||
| امین کانونی* 1؛ آرمین عابدی2 | ||
| 1استادیار گروه مهندسی آب، دانشگاه محقق اردبیلی، اردبیل، ایران | ||
| 2کارشناس ارشد گروه مهندسی آب، دانشگاه محقق اردبیلی، اردبیل، ایران | ||
| چکیده | ||
| برای ارزیابی عملکرد بهرهبرداری از شبکۀ آبیاری یامچی، حجم آب تحویل داده شده به واحدهای زراعی در دورۀ بهرهبرداری سالهای 91-90 تا 94-93 و تغییرات سطح زیرکشت محصولات مختلف تهیه شد و پس از برآورد نیاز آبی محصولات با استفاده از روش پنمن-مانتیث-فائو، شاخصهایی همچون تأمین نسبی منابع آب، تأمین نسبی آب آبیاری، نسبت حجم آب تحویلی و نسبت رطوبت قابل دسترس محاسبه شدند. نتایج بررسیها نشان میدهد که شاخص تأمین نسبی آب آبیاری حدود 4/0 و 5/0 و شاخص تأمین نسبی منابع آب حدود 5/0 و 6/0 بهترتیب در دو سال آخر دورۀ بهرهبرداری بوده است که نشان میدهد حدود 50 درصد کمتر از نیاز آبی محصولات، آب تحویل شبکه شده است. در طول دورۀ چهار سالۀ بهرهبرداری، سهم بارندگی در تأمین نیاز آبی محصولات در دو ماه اول (اردیبهشت و خرداد) بیشتر از دو ماه انتهایی (تیر و مرداد) آن بود. ارزیابی عملکرد زمانی و مکانی تحویل و توزیع آب در شبکه با استفاده از تصویرهای ماهوارهای و تفسیر آنها نشان میدهد که در سالهای آخر بهرهبرداری، سطحی وسیع از اراضی دچار خشکی شدید بوده است و نیز اینکه سطح زمینهای با تأمین کامل نیاز آبی کاهش یافته است. | ||
| کلیدواژه‌ها | ||
| سنجش از دور؛ شاخص های ارزیابی؛ شبکۀ آبیاری یامچی؛ عملکرد | ||
| عنوان مقاله [English] | ||
| Evaluation of Spatio-Temporal Performance and Water Delivery Management of Yamchi Irrigation Network in Nam, W. H., Hong, E. M. and Choi, J. Y. 2016. Assessment of water delivery efficiency in irrigation canals using performance indicators. Irrig. Sci. 34, 129-143.Ardabil Province | ||
| نویسندگان [English] | ||
| Amin Kanooni1؛ Armin Abedi2 | ||
| 1Water Engineering Department, Mohaghegh ardabili university, Ardabil, Iran | ||
| 2Water engineering department, Mohaghegh ardabili university | ||
| چکیده [English] | ||
| In order to evaluate the performance of Yamchi irrigation network located at the downstream of Ardabil reservoir dam, the necessary data with regards to water delivered to irrigated areas during four operating years (2012-2015) and cropping pattern variability of cultivated crops were acquired from Ardabil Regional Water Authority. Next water requirement of crops was estimated using Penman-Montith-FAO method and then performance of the irrigation network was evaluated by different performance indices such as Relative water supply (RWS), Relative irrigation supply (RIS), Water delivery index (WDI) and Ratio of moisture availability. The results showed that the performance indices in last two years were 0.4 and 0.5 for RWS and 0.5 and 0.6 for RIS respectively. This indicates that water delivered to the crops through irrigation network was up to 50% less than their requirements. Rainfall contribution to crop water requirement in the first two months (May and June) was higher than the last two months (July and August) during the operating period. Delivery and distribution performance evaluation of network with respect to spatial and temporal scale using satellite images showed that the land area due to severe drought increased and that land area depended on irrigation water supply was decreased in the finishing years of project. | ||
| کلیدواژه‌ها [English] | ||
| Evaluation Indexes, performance, Remote Sensing, Yamchi Irrigation Network | ||
| مراجع | ||
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