ارزیابی تنظیم سیلاب با رویکرد خدمات اکوسیستم ( مطالعه موردی: حوضه آبریز رودهن-بومهن)

نوع مقاله : پژوهشی

نویسندگان

1 گروه مهندسی عمران، دانشکده فنی و مهندسی مرند، دانشگاه تبریز، تبریز، ایران

2 گروه جغرافیای طبیعی، دانشکده علوم زمین، دانشگاه شهید بهشتی، تهران، ایران.

چکیده

در این تحقیق به منظور بررسی پتانسیل ایجاد سیلاب‏های حوضه رودهن-بومهن ابتدا گروه‏های هیدرولوژیک خاک مشخص شده و سپس با استفاده از تصاویر ماهواره‏ای لندست سال 2021، نقشه کاربری اراضی حوضه تهیه گردید. در مرحله بعد با استفاده از آمار حداکثر بارش 24 ساعته ایستگاه های منطقه، شبیه‏سازی بارش-رواناب به‌کمک روش SCS انجام شد. با توجه به نتایج، پتانسیل تولید رواناب در قسمت‏های جنوب غربی و تا حدودی غرب کم و در قسمت شمال و جنوب حوضه بیشتر است. نتایج تلفیق نقشه رواناب و پتانسیل خدمت تنظیم سیل کاربری ها نشان داد که در قسمت کاربری شهری، پتانسیل تقاضا جهت کنترل سیل، زیاد، در کاربری مراتع، متوسط و در کاربری باغ، کم می‌باشد. در نهایت نقشه بودجه خدمت تنظیم سیل بیانگر این است که عرضه خدمت تنظیم سیل (74.95%) بیش از تقاضا برای کنترل سیل (16.86%) است و حدود 8.18% حوضه عدم تقاضا و عرضه وجود دارد. بنابراین، استفاده از پهنه های عرضه تنظیم سیل جهت جلوگیری و کاهش سیل در پهنه های مورد تقاضا برای کنترل سیل و جلوگیری از تهدیدات انسانی ضروریست.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Assessing Flood Regulation with Ecosystem Services Approach (Case Study: Roudehen-Boumehen Catchment)

نویسندگان [English]

  • leila malekani 1
  • Somaiyeh Khaleghi 2
  • mahdiyeh sabzaliyan 2
1 Department of Civil Engineering, Marand Faculty of Engineering and Technology, University of Tabriz, Tabriz, Iran
2 Department of Physical Geography, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran
چکیده [English]

In this study, in order to investigate the potential for flooding in the Roudehen-Boumehen catchment, first the hydrological soil groups were identified, and then a land use map of the basin was prepared using Landsat satellite images from 2021. In the next step, precipitation-runoff simulation was performed using the SCS method. According to the results, the potential for runoff production is low in the southwestern and somewhat western parts of the catchment, and higher in the northern and southern parts. The results of the integration of the runoff map and the flood control service potential of the land uses showed that in the urban land use, the potential demand for flood control is high, in the rangeland land use, it is medium, and in the orchard land use, it is low. Finally, the flood control service budget map indicates that the supply of flood control service (74.95%) is more than the demand for flood control (16.86%) and there is a lack of demand and supply in about 8.18% of the catchment. Therefore, the use of flood regulation supply zones to prevent and reduce flooding in demand zones is essential for flood control and prevention of human threats.

کلیدواژه‌ها [English]

  • Ecosystem services
  • regulatory services
  • flood
  • land use
  • Roudehen-Boumehen catchment
  • Tehran
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