مجلة القادسیة للعلوم الزراعیة

نمذجة کفاءة استخدام المیاه باستعمال CropWat و AquaCrop: حالة البطاطس فی المناطق شبه جافة

نوع المقالة : بحث

https://doi.org/10.33794/qjas.2022.135143.1071
الملخص
تعتمد محاصیل الخضر فی الجزائر على الری. فی هذا السیاق ، فإن الدراسة الحالیة موجهة نحو الإدارة الفعالة للمیاه الزراعیة التی تساهم فی تحسین إنتاج المحاصیل. یعتمد النهج على حساب الاحتیاجات المائیة للبطاطس من أجل التحکم فی کفاءة إمدادات المیاه فیما یتعلق بالمتطلبات المائیة للمحصول. هذه الکفاءة فی الاستخدام أمر حتمی من أجل محصول أفضل وبیئة زراعیة صحیة. فی هذه الدراسة ، استخدمنا نموذجین زراعیین CropWat (v8.0) و AquaCrop (v6.1) ، تم تطویرهما بواسطة منظمة الأغذیة والزراعة ، لتقییم کفاءة استخدام المیاه (WUE) فی مناخ شبه جاف (ولایة تیارت). فترة 31 سنة (1990-2021). وذلک بتقدیر متطلبات میاه الری (IWR) ومتطلبات میاه المحاصیل (CWR). أظهرت النتائج التی تم الحصول علیها أن هناک علاقة وثیقة للغایة بین التقدیرات المنتجة من قبل النموذجین CropWat و AquaCrop. هذه التقدیرات تخص IWR و CWR و WUE ، والتی هی فی حدود 395.91 مم ، 517.24 مم ، 6.47 کجم / م 3 باستخدام CropWat و 385.46 مم ؛ 507.38 مم ، 6.37 کجم / م 3 باستخدام AquaCrop. أصبحت نماذج محاکاة نمو المحاصیل أدوات مهمة لتقییم وتطویر استراتیجیات الری الناقص ، خاصة فی المناطق الجافة وشبه الجافة.

الكلمات الرئيسة

البطاطس
AquaCrop
CropWat
متطلبات میاه المحاصیل
کفاءة استخدام المیاه
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مجلة القادسیة للعلوم الزراعیة
السنة 13، العدد 1
كانون الثاني / يناير 0
الصفحة 50-58

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