ارزیابی پایداری حوزه آبخیز فورگ شهرستان درمیان با استفاده از روش HELP | ||
خشک بوم | ||
دوره 13، شماره 2، مهر 1402، صفحه 125-138 اصل مقاله (1.46 M) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.29252/aridbiom.2024.20841.1972 | ||
نویسندگان | ||
سلمان ابراهیمی1؛ جواد چزگی* 2 | ||
1دانشجوی کارشناسیارشد آبخیزداری، دانشکده منابع طبیعی و محیطزیست، دانشگاه بیرجند، بیرجند، ایران | ||
2استادیار، گروه مرتع و آبخیزداری، دانشکده منابع طبیعی و محیطزیست، دانشگاه بیرجند، بیرجند، ایران | ||
چکیده | ||
حوزههای آبخیز بستر تعاملات جوامع انسانی با محیط پیرامون خود میباشند که تحت تأثیر بهرهبرداریهای بیرویه با مشکلات مختلفی مواجه شده است. بر این اساس ارزیابی پایداری حوزههای آبخیز امری اجتناب ناپذیر است. توجه به منابع موجود جهت ارزیابی و انتخاب روشی مناسب و کمی نمودن میزان پایداری حوزهآبخیز، راه حلی برای انتخاب روشی مناسب در ارزیابی پایداری حوزهآبخیز بهنظر میرسد. در همین راستا برای ارزیابی پایداری حوزه آبخیز فورگ شهرستان درمیان در استان خراسان جنوبی بر پایه رویکرد HELP با هدف تعیین میزان پایداری این حوزه آبخیز در طول زمان 1385 تا 1402 صورت پذیرفت. 12 متغییر برای بررسی پایداری حوضه تعیین شد و براساس ماهیت هر کدام در شاخصهای فشار، حالت و پاسخ قرار گرفتند. میانگین امتیازات معیارهای هیدرولوژی، محیط زیست، حیات و سیاستگذاری به ترتیب 085/0، 45/0، 50/0 و 57/0 بدست آمد. نتایج نشان داد پایداری منطقه با مقدار 40/0 در طبقه پایداری کم طبقهبندی شد. پایداری کم حوزه آبخیز سبب شده است که هرگونه تغییر در وضعیت حوزه آبخیز سبب کاهش پایداری و به وجودآمدن شرایط نامساعد گردد که تخریب هرچه بیشتر حوزه آبخیز را در پی خواهد داشت. لذا پیشنهاد میگردد سیاستهای مدیریتی و اجرایی حوزه آبخیز فورگ در راستای حفظ شرایط فعلی و ارتقاء سلامت پایداری زیر حوزههای آبخیز با تکیه بر کنترل فعالیتهای انسانی و عوامل وابسته به آن صورت پذیرد. | ||
کلیدواژهها | ||
سلامت حوزه آبخیز؛ شاخص پایداری آبخیز؛ سیاستگذاری آبخیز؛ شهرستان درمیان | ||
عنوان مقاله [English] | ||
Assessment the Forg Watershed Sustainability in Darmiyan County Using HELP Method | ||
نویسندگان [English] | ||
Salman Ebrahimi1؛ Javad Chezgi2 | ||
1M.Sc. student, Watershed Management, Faculty of Natural Resources and Environment, University of Birjand, Birjand. Iran | ||
2Assistant Professor, Rangeland and Watershed Management, Faculty of Natural Resources and Environment, University of Birjand, Birjand. Iran | ||
چکیده [English] | ||
Watershed is the base of human societies interact with their surroundings, which have been affected by various problems. Accordingly, the evaluation of the stability of the watershed areas is inevitable. Considering the existing resources for evaluating and selecting a suitable method and quantifying the stability of the water, it seems a solution to select the appropriate method in evaluating the sustainability of the water. In this regard, to evaluate the sustainability of the Forg Watershed District in South Khorasan Province, based on the Help approach, aimed at determining the stability of this watershed area during 2006 to 2023. 12 variables were determined to investigate the stability of the basin and were based on the nature of the pressure, state and response indicators. The average privileges of hydrology, environmental, life and policy criteria were 0.238, 0.45, 0.50 and 0.57, respectively. The results showed that the stability of the area was classified by 0.40 on the low stability floor. The low stability of the watershed has caused any changes in the status of the watershed area to reduce stability and cause adverse conditions that will cause further destruction of the watershed. Therefore, it is suggested that the management and administrative policies of the Forg Watershed are in order to maintain the current conditions and promote the health of the watershed sub -areas, relying on the control of human activities and its related factors. | ||
کلیدواژهها [English] | ||
Watershed Health, Watershed Stability Index, Watershed Policy, Darmiyan County | ||
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