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ارزیابی مدل های گیاهی ORYZA2000، SWAP وWOFOST در مدیریت های مختلف آبیاری | ||
| تحقیقات مهندسی صنایع غذایی | ||
| مقاله 2، دوره 10، شماره 3، آذر 1388، صفحه 13-28 اصل مقاله (394.23 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| ابراهیم امیری* 1؛ مسعود کاوسی2؛ فریدون کاوه3 | ||
| 1استادیار دانشگاه آزاد اسلامی واحد لاهیجان | ||
| 2استادیار پژوهش مؤسسه تحقیقات برنج کشور | ||
| 3دانشیار دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران | ||
| چکیده | ||
| مدلهای ORYZA2000، SWAP، و WOFOST رشد و توسعة برنج را در شرایط تولید پتانسیل و کمبود آب شبیهسازی میکنند. برای ارزیابی مدلها، تحقیقی در مزرعة تحقیقاتی مؤسسه تحقیقات برنج کشور، در قالب طرح بلوک کامل تصادفی با 6 مدیریت آبیاری به عنوان تیمار، در سه تکرار طی سال زراعی 84 روی رقم هاشمی اجرا شد. مدیریتهای آبیاری شامل غرقاب دایم، آبیاری پس از 1، 3، و 5 روز محو شدن آب از سطح زمین و آبیاری با دورهای 5 و 8 روز بود. مقادیر شبیهسازی و اندازهگیری شده بیوماس کل، بیوماس پانیکول، شاخص سطح برگ، و عملکرد نهایی با استفاده از پارامترهای ضریب تبیین، جذر میانگین مجذور خطا و جذر میانگین مجذور خطای نرمال شده ارزیابی شد. به طور میانگین، مقدار جذر میانگین مجذور خطای بیوماس کل سه مدل ORYZA2000، SWAP و WOFOSTبهترتیب 653، 458 و 589 و بیوماس پانیکول 375، 284 و 335 کیلوگرم بر هکتار و شاخص سطح برگ 41/0، 53/0 و 50/0 محاسبه شد. در بررسی شبیهسازی مقدار عملکرد نهایی با این سه مدل مشخص شد که مدل ORYZA2000 نسبت به دو مدل دیگر دقت بیشتری دارد. | ||
| عنوان مقاله [English] | ||
| Evaluation of Crop Growth Models ORYZA2000, SWAP and WOFOST under Different Types of Irrigation Management | ||
| چکیده [English] | ||
| The models ORYZA2000, SWAP and WOFOST simulate the growth and development of rice under conditions of potential production and water limitation. The models were evaluated against a data set of field experiments. The study was laid out in RCBD with three replications for one traditional landrace, Hashemi, carried out in 2005 at the Rice Research Institute of Iran in Rasht. The irrigation managements were: I1 (continuous irrigation); I2, I3, and I4 (irrigation at 1, 3 and 5 days, respectively, after disappearance of ponded water) and I5 and I6 (irrigation at 5 and 8 day intervals, respectively). In this paper, simulated and measured leaf area index (LAI), biomass panicles, total aboveground biomass and yield by adjusted coefficient of correlation (R2), and absolute and normalized root mean square errors (RMSE) were compared. On average, RMSE total aboveground biomass was 653 kg/ha for ORYZA2000, 458 kg/ha for WOFOST and 589 kg/ha for SWAP. RMSE biomass panicles biomass was 375 kg/ha for ORYZA2000, 284 kg/ha for WOFOST and 335 kg/ha for SWAP. RMSE LAI was 0.41(-) for ORYZA2000, 0.53(-) for WOFOST and 0.5(-) for SWAP. ORYZA2000, in contrast to WOFOST and SWAP, simulated the yield of rice well. | ||
| کلیدواژهها [English] | ||
| biomass, Evaluation, model, rice, simulation | ||
| مراجع | ||
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