بهروز سبحانی یوسف حسن زاده


يكي از ­روش­هاي برنامه­ريزي كشاورزي تعيين و شناسايي نواحي مناسب براي كاشت گياهان زراعي و باغي بر اساس شرايط آب ­و هوايي و فيزيوگرافي است. اين امر، كشاورزان را قادر مي­سازد كه خسارت ناشي از شرايط نامناسب اقليمي بر محصول را در طول دوره رشد به حداقل برسانند. نخود (Cicer arietinum L.) يکي از محصولات زراعي در استان اردبيل است که حدود 5272 هکتار از اراضي استان زير کشت اين گياه زراعي است. هدف از اين تحقيق، شناسايي نواحي مناسب استان اردبيل براي كشت نخود در محيط GIS است. براي اين منظور، ابتدا نيازهاي مطلوب اقليمي در طول دوره رشد نخود تعيين گرديد، سپس داده‌هاي مورد مطالعه از قبيل، بارندگي، دما، ارتفاع، شيب، خاک و کاربري اراضي جمع‌آوري شدند. هرکدام از داده‌ها با استفاده از روش AHP تحليل شدند و ضريب وزني معيارهاي اصلي، فرعي و زير گزينه‌ها مشخص شدند. درنتيجه ضريب وزني معيارهاي اصلي از قبيل اقليم با 603/0، توپوگرافي 245/0، خاك 114/0 و كاربري اراضي 038/ 0 تعيين گرديد. در مرحله بعد، نقشه­هاي موضوعي موردنياز براي هريک از داده‌ها موردمطالعه در محيط GIS تهيه و براي هريک از پليگون‌هاي نقشه، ضريب وزني لحاظ شد و هريک از نقشه‌ها بر اساس روش AHP در محيط GIS طبقه‌بندي شدند. در نهايت با تلفيق نقشه‌ها، نقشه نهايي پهنه‌بندي کشت نخود در استان اردبيل در چهار کلاس تهيه گرديد كه حدود 18 درصد از مساحت استان خيلي مناسب، 45 درصد مناسب، 25 درصد متوسط و 12 درصد نامناسب براي كشت نخود است.

جزئیات مقاله

کلمات کلیدی

اقليم کشاورزي, داده‌هاي جوي, عوامل فيزيوگرافي, تناسب اراضي, نيازهاي مطلوب اقليمي

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ارجاع به مقاله
سبحانیب., & حسن زادهی. (2018). پهنه‌بندی¬آگروکلیماتیک کاشت نخود (Cicer arietinum L.) با روش AHP در محیط GIS مورد مطالعه: استان اردبیل. بوم شناسی کشاورزی, 10(3), 733-746. https://doi.org/10.22067/jag.v10i3.57287
نوع مقاله
علمی - پژوهشی