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سنجش کارایی و بهره وری مصرف آب تهران با استفاده از روش تحلیل پوششی داده ها | ||
نشریه محیط زیست طبیعی | ||
مقاله 7، دوره 68، شماره 4، دی 1394، صفحه 595-608 اصل مقاله (435.71 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/jne.2015.56932 | ||
نویسندگان | ||
حمید سرخیل* 1؛ مهیار حبیبی راد2؛ نعمت الله خراسانی3 | ||
1استادیار، گروه مهندسی محیط زیست، دانشگاه محیط زیست، ایران | ||
2دانشجوی کارشناسی ارشد، مهندسی عمرانـ محیط زیست، دانشگاه محیط زیست، ایران | ||
3استاد، گروه محیط زیست، دانشگاه تهران، ایران | ||
چکیده | ||
در این پژوهش با استفاده از تکنیکهای ورودی تحلیل پوششی دادهها، شاخصهای کارایی و بهرهوری مصرف آب تهران برای دورۀ زمانی 1384ـ 1392 ارزیابی شد. همچنین همبستگی بین مصرف آب و فعالیتهای اقتصادی منطقه با استفاده از شاخص تولید ناخالص داخلی منطقهای بررسی شد. نتایج نشان میدهد که بهرهوری کل از نظر تغییر کارایی فنی و تغییر کارایی مقیاس، بهترتیب 80/1 و 68/1 درصد بهبود یافته است. علاوه بر آن، بهعلت اجرای طرحهای کلان، جمعآوری و تصفیۀ فاضلاب و همچنین بهکار بردن راهکارهای مدیریت مصرف آب برای افزایش ذخیرۀ سالانۀ آب بهویژه از سال 1390 به بعد، بهرهوری کل از نظر تغییر فناوری، 32/12 درصد بهبود یافته است. این شاخصها تأیید میکند که بدون کاهش در میزان تولیدات و خدمات عمدۀ مربوط به تهران، امکان کاهش مصرف آب تا 22 میلیون متر مکعب در این شهر میسر است. | ||
کلیدواژهها | ||
بهرهوری؛ تحلیل پوششی دادهها؛ کارایی؛ کارایی مصرف آب | ||
مراجع | ||
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