تعیین بهره‌وری فیزیکی و اقتصادی آب کشاورزی: مطالعه‌ی موردی شهرستان دزفول
الموضوعات : فصلنامه علمی -پژوهشی تحقیقات اقتصاد کشاورزیفاطمه ملارضاقصاب 1 , عباس عبدشاهی 2 , افشین مرزبان 3
1 - دانشجوی کارشناسی ارشد توسعه روستایی دانشگاه علوم کشاورزی و منابع طبیعی خوزستان
2 - عضو هیئت علمی دانشگاه کشاورزی و منابع طبیعی رامین اهواز
3 - استادیار گروه مکانیزاسیون و ماشینهای کشاورزی دانشگاه علوم کشاورزی و منابع طبیعی خوزستان
الکلمات المفتاحية: رگرسیون, بهره‌وری فیزیکی آب, بهره‌وری اقتصادی آب, محصولات زراعی و باغی,
ملخص المقالة :
مطالعه‌ی حاضر، با محاسبه‌ی بهره‌وری فیزیکی و اقتصادی آب در محصولات زراعی و باغی شهرستان دزفول در سال زراعی 96-1395، این محصولات را از نظر بهره‌وری آب اولویت‌بندی نموده است. همچنین عوامل موثر بر بهره‌وری فیزیکی و اقتصادی آب با استفاده از یک مدل رگرسیون، تعیین گردید. داده‌های مورد نیاز با روش نمونه‌گیری تصادفی طبقه‌ای و با تکمیل پرسشنامه از یک نمونه‌ی 221 نفری از کشاورزان شهرستان مذکور، به دست آمد. نتایج نشان داد که، بالاترین بهره‌وری فیزیکی آب به ترتیب مربوط به محصول کاهو (8/22 کیلوگرم بر مترمکعب)، هویج (03/15 کیلوگرم بر مترمکعب) و پیاز (19/9 کیلوگرم بر مترمکعب) و پایین‌ترین بهره‌وری فیزیکی آب مربوط به نارنج (67/0 کیلوگرم بر مترمکعب) و گریپ‌فروت (84/0 کیلوگرم بر مترمکعب) می‌باشد. نتایج تحلیل رگرسیون نیز نشان داد که متغیرهای نوع محصول، سن، سابقه‌ی و تحصیلات کشاورز، سطح زیرکشت، داشتن شغل غیرکشاورزی، نوع منبع آب و روش آبیاری بر بهره‌وری فیزیکی و متغیرهای سن و سابقه‌ی کشاورز، شغل غیرکشاورزی، بافت خاک و نوع منبع آب بر بهره‌وری اقتصادی آب موثرند.
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