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بهینه‌سازی الگوی کشت با استفاده از نرم افزار AquaCrop-GIS (مطالعه موردی: دشت دهلران، استان ایلام) | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 14، دوره 49، شماره 4، مهر و آبان 1397، صفحه 865-877 اصل مقاله (892.3 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2017.242981.667770 | ||
| نویسندگان | ||
| گلستان پرواز1؛ محمود رستمی نیا* 2؛ حمزه علی علیزاده3 | ||
| 1دانشجوی کارشناسی‌ارشد علوم و مهندسی خاک، دانشگاه ایلام | ||
| 2هیات علمی دانشگاه ایلام | ||
| 3هیات علمی/ دانشگاه ایلام | ||
| چکیده | ||
| بهینه‌سازی الگوی کشت یکی از مهمترین راهکارهای افزایش بهره‌وری آب و حفاظت از منابع آب محدود کشور می‌باشد. هدف از این مطالعه بهینه‌سازی الگوی کشت دشت دهلران در استان ایلام مبتنی بر تغییرات مکانی ویژگی‌های شیمیایی و فیزیکی خاک، مقدار آب در دسترس، کیفیت آب و سطح آب‌های زیرزمینی می‌باشد. در این راستا دشت دهلران به چهار ناحیه اراضی تحت پوشش شبکه‌های میمه، دویرج، سامانه گرمسیری و اراضی تحت پوشش چاه‌ها تقسیم‌بندی شد. سپس با استفاده از اطلاعات میدانی، نرم‌افزار AquaCrop-GIS واسنجی و صحت‌سنجی شد. در نهایت توابع تولید محصولات مختلف استخراج و با استفاده از روش برنامه‌ریزی خطی و تابع هدف حداکثر درآمد خالص، الگوی کشت بهینه‌سازی شد. نتایج نشان داد AquaCrop-GIS ابزار قدرتمندی برای تحلیل تغییرات مکانی پارامترهای مؤثر بر عملکرد محصول بوده و الگوی کشت در یک دشت تحت تأثیر تغییرات مکانی این پارامترها می‌باشد. همچنین با بهینه‌سازی الگوی کشت متناسب با کمّیت و کیفیت آب و ویژگی‌های شیمیایی و فیزیکی خاک در مناطق مختلف دشت دهلران می‌توان با مصرف مقدار آب یکسان درآمد و بهره‌وری آب را بین 30 تا 120 درصد افزایش داد. | ||
| کلیدواژه‌ها | ||
| سامانه گرمسیری؛ تابع تولید؛ تغییرات مکانی؛ واسنجی | ||
| عنوان مقاله [English] | ||
| Optimization of the Cropping Pattern Using AquaCrop-GIS (Case Study: Dehloran Plain, Ilam Province) | ||
| نویسندگان [English] | ||
| Golestan Parvaz1؛ Mahmoud Rostaminya2؛ Hamzehali Alizadeh3 | ||
| 1Ms.c Student Science and soil Engineering Department, Ilam University | ||
| 2Ilam university | ||
| 3Department of Water Engineering, College of Agriculture, Ilam University | ||
| چکیده [English] | ||
| Optimization of cropping pattern is one of the most important methods to increase water productivity and protect the limited water resources throughout the country. The objective of this study was optimization of cropping pattern in Dehloran plain based on spatial variations of water quality, water availability, chemical and physical characteristics of soil, and groundwater level. To this end, the Dehloran plain was divided into four zones: area covered by the Meymeh networks, Doyraj, Tropical systems and lands covered by wells. Then, AquaCrop-GIS software was calibrated and validated by filed data. Finally, the production functions were extracted and the cropping pattern was optimized using the linear programming method and the objective function of maximum net benefit. The results showed that AquaCrop-GIS are a robust tool for analyzing spatial variation of parameters affecting yield and cropping pattern in a plain. Moreover, crop pattern optimization related to water quality and quantity features beside soil physical and chemical properties could be influential on the net benefit and water productivity to be increased by 30 to 120 percent in different regions of Dehloran plain. | ||
| کلیدواژه‌ها [English] | ||
| Tropical system, Production Function, Spatial Variation, calibration | ||
| مراجع | ||
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