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تغییرات پارامترهای جوی، تبخیرتعرق گیاه مرجع و نیاز آبی ریحان در سیستم یکپارچه نوین گلخانه و حوضچه تبخیر آب شور | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 14، دوره 51، شماره 2، اردیبهشت 1399، صفحه 455-467 اصل مقاله (942 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2019.278320.668152 | ||
| نویسندگان | ||
| احمد احمدی نیک1؛ علی رحیمی خوب* 2؛ ساسان علی نیایی فرد3 | ||
| 1گروه مهندسی آبیاری و زهکشی ، پردیس ابوریحان دانشگاه تهران، پاکدشت، ایران | ||
| 2گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران | ||
| 3گروه علوم باغبانی، پردیس ابوریحان دانشگاه تهران، پاکدشت، ایران | ||
| چکیده | ||
| سیستم گلخانه آب شور فنآوری نوینی است که با بهره‌گیری از راهکار نمک‌زدایی، امکان تولید آب شیرین و رشد محصول در مناطق خشک را با استفاده از آب شور فراهم میسازد. این سیستم با کنترل عوامل جوی، رطوبتنسبی را تا نزدیکی نقطه اشباع افزایش داده و تبخیرتعرق در این شرایط تا حد زیادی کاهش مییابد. علیرغم قابلیتهای این سیستم، محدودیتهایی مانند گرفتگی صفحات تبخیرکننده و استحصال نمک، کارآیی این سیستم را با مشکل مواجه میسازد. از اینرو در این مطالعه، ایده جدیدی تحت عنوان سیستم یکپارچه نوین گلخانه و حوضچه تبخیر آب شور، برای اولین بار مطرح میگردد که حوضچه تبخیر آب شور جایگزین صفحات تبخیرکننده در گلخانه آب شور شده است. در این مطالعه پس از اجرای طرح پایلوت این سیستم یکپارچه در جنوب شرق تهران، تغییرات عوامل جوی، تبخیرتعرق مرجع، نیاز آبی گیاه، عملکرد محصول و کارایی مصرف آب در کشت محصول ریحان در این سیستم مورد مطالعه قرار گرفت و با نتایج کشت در فضای باز به عنوان شاهد مقایسه گردید. بر اساس نتایج، اولویت تأثیرگذاری عوامل جوی در فضای باز بر تغییرات پارامترهای جوی در سیستم یکپارچه بهترتیب شامل تأثیر دما، رطوبتنسبی و ساعات آفتابی بود. با توجه به اندازه‌گیری مقادیر نیاز آبی و عملکرد محصول در این مطالعه، مقدار کارایی مصرف آب در کشت محصول ریحان در فضای باز و محیط کشت گلخانه‌ای سیستم یکپارچه پیشنهادی به ترتیب معادل 14/1 و 89/2 کیلوگرم بر مترمکعب محاسبه گردید. | ||
| کلیدواژه‌ها | ||
| نمک‌زدایی؛ سیستم گلخانه آب شور؛ نیاز آبی گیاه؛ کشت‌های گلخانه‌ای؛ منابع آب شور | ||
| عنوان مقاله [English] | ||
| Atmospheric Parameters Variation, Reference Crop Evapotranspiration and Basil Water Requirement in Novel Integrated System of Greenhouse and Saltwater Evaporative Pond | ||
| نویسندگان [English] | ||
| Ahmad Ahmadinik1؛ Ali Rahimikhoob2؛ Sasan Aliniaeifard Aliniaeifard3 | ||
| 1Irrigation and Drainage Eng. Department , Aburaihan Campus, University of Tehran, Pakdasht, Iran | ||
| 2Department of Irrigation and Drainage Engineering, Aburaihan Campus, University of Tehran, Pakdasht, Iran. | ||
| 3Department of Horticulture, Aburaihan Campus, University of Tehran, Pakdasht, Iran | ||
| چکیده [English] | ||
| The seawater greenhouse system is a new technology that utilizes a desalination approach using saltwater to provide fresh water production and crop growth in arid areas. By controlling the atmospheric factors, this system increases relative humidity nearly up to saturation point and the amount of evapotranspiration in these conditions greatly decreases. Despite the capabilities of this system, there are limitations, such as the eclipse of evaporator and salt collection make it difficult to operate. Therefore, in this study, a new idea under the name of "Novel Integrated System of Greenhouse and Saltwater Evaporative Pond" is proposed for the first time in which the evaporator in saltwater greenhouse system has been replaced by the saltwater evaporative pond. In this study, after implementing the pilot project of this integrated systemin in south east of Tehran, the atmospheric factors variations, reference crop evapotranspiration, plant water requirement, crop yield, and water use efficiency in basil cultivation were studied in this system. The results were compared to the results of open field as a control. Based on the obtained results, the priority impact of the open field atmospheric factors on atmospheric factors variations in integrated system were temperature, relative humidity, and sunshine parameters. According to the measured amounts of water requirements and crop yield in this study, the amount of water use efficiency in basil cultivation in the open field and greenhouse media of the proposed integrated system were 1.14 and 2.89 kg/m3, respectively. | ||
| کلیدواژه‌ها [English] | ||
| Crop water requirement, Desalination, Greenhouse cultivation, Saltwater resources, Seawater greenhouse system | ||
| مراجع | ||
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