پژوهش حاضر با هدف ارزیابی سلامت آبخیز سد فریمان واقع در استان خراسان رضوی با استفاده از 9 معیار مرتبط با ابعاد مختلف هیدرولوژی و اقلیمی حوضه انجام شده است. بدین منظور ابتدا اطلاعات پایه برای شبیه سازی هیدرولوژی حوضه شامل داده‌های فیزیکی، هیدرومتری و هواشناسی جمع‌آوری شد و با استفاده از مدل SWAT دبی و رسوب زیرحوضهها تعیین گردید. در ادامه، با استفاده از مدل مفهومی بنیه-ساختار-انعطاف‌پذیری (VOR)، وضعیت سلامت آبخیز سد فریمان و زیرحوضه‌های آن برای دورۀ 30 ساله 1985 تا 2014 تعیین شد. نتایج نشان داد که شاخص سلامت آبخیز حوضه برابر با 0/65 بوده و حوضه دارای وضعیت 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است. مقدار شاخص‌های بنیه، ساختار و انعطاف‌پذیری به ترتیب برابر 0/64، 0/62 و 0/71 به‌دست آمد. حداقل مقدار شاخص سلامت برابر با 0/51 مربوط به زیرحوضه 6 و حداکثر مقدار این شاخص برابر 0/85 مربوط به زیرحوضه 7 می‌باشد. به‌طور کلی وضعیت سلامت در نواحی شمال شرق، غرب و جنوب غربی در وضعیت بهتری نسبت به زیرآبخیزهای مرکزی در امتداد شمال غرب تا جنوب شرق قرار دارد.

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