ارزیابی اثرات اقتصادی، اجتماعی و زیست محیطی سد و شبکه آبیاری تنگاب فیروزآباد فارس

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانش آموخته مدیریت کشاورزی دانشکده کشاورزی دانشگاه تبریز

2 عضو هیئت علمی گروه اقتصاد کشاورزی دانشکده کشاورزی دانشگاه تبریز

3 دانشجوی اقتصاد کشاورزی پردیس کشاورزی و منابع طبیعی دانشگاه تهران

چکیده

با توجه به افزایش نگرانی‌های جهانی در رابطه با افزایش ناپایداری اجتماعی پروژه‌های توسعه کشاورزی در مناطق روستایی، هدف کلی این پژوهش ارزیابی اقتصادی، اجتماعی و زبست‌محیطی سد و شبکه آبیاری تنگاب فیروزآباد فارس است. بر این اساس، معیارهای اقتصادی و روش تحلیل چند معیاری برای مشخص کردن اثرات غیر اقتصادی ناشی از سد مورد استفاده قرار گرفت. نتایج نشان داد در نرخ تنزیل 12 درصد ارزش حال خالص پروژه 108×1/4 میلیارد ریال و نرخ بازده داخلی پروژه 42/25 بود. تحلیل حساسیت پروژه نیز در نرخ‌های تنزیل  مختلف، تغییر هزینه‌ها و منافع و تغییر عمر پروژه حکایت از توجیه­پذیر بودن طرح از نظر اقتصادی دارد. همچنین، بر اساس نتایج تحلیل چندمعیاره مهم‌ترین اثرات مثبت این طرح عبارت بوده‌اند از: بهبود کشاورزی منطقه، افزایش سطح آب زیرزمینی، کنترل سیلاب، بهبود شرایط اقلیمی منطقه، افزایش ارزش زمین، بهبود گردشگری و توسعه ورزش‌های آبی. از سوی دیگر، مهم‌ترین اثرات منفی نیز عبارت بودند از: اثرات منفی ناشی از عملیات ساختمانی سد خاکریزی و خاک‌برداری، حفر تونل و ایجاد جاده جدید، خسارات زیست­محیطی و قطع درختان، تملک اراضی و جابجایی و اسکان مجدد مردم. بر اساس نتایج حاصل از تحلیل چند معیاره، اثرات مثبت طرح نسبت به اثرات منفی آن چشم‌گیرتر بوده است.

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