Flood Hazard Zoning and Its Relationship with Land Use Using the Analytic Network Process Model (Case Study: Razi Chay Watershed, Ardabil Province)

Message:
Article Type:
Case Study (بدون رتبه معتبر)
Abstract:
Background and Objective

Floods are one of the natural phenomena that can cause significant damage to infrastructure, farmlands, and the environment. This phenomenon primarily occurs due to heavy rainfall, snowmelt, or a combination of these factors. Therefore, the aim of this study is to map flood hazard zones and examine their relationship with land use using the Analytic Network Process (ANP) model in the Razi Chay watershed in Ardabil Province.

Methodology

In this study, data from Landsat 8 satellite imagery from 2022, a 30-meter ASTER DEM map, a 1:50,000 scale topographic map, a 1:250,000 scale geological map, and other detailed information of the studied watershed were utilized. Ten parameters influencing flood occurrence were analyzed, including elevation, slope, slope aspect, vegetation cover, geological formations, distance from the river, flow direction, land use, precipitation, and drainage density. The Analytic Network Process (ANP) model was employed to determine the importance of each variable.

Findings and Conclusion

Among the studied parameters, slope (with a weight of 30%), elevation (with a weight of 21%), and land use (with a weight of 17%) were assigned the highest weights, indicating their significant influence in controlling flood occurrence in the Razi Chay watershed. The results show that approximately 36% of the Razi Chay watershed falls within high-risk and very high-risk zones. These areas are typically located in the lower part of the watershed, often at the confluence of the two main streams. Considering the spatial distribution of settlements in the region, it can be concluded that most of the settlements in the lower part of the watershed are exposed to flood risks

Language:
Persian
Published:
Journal of Sustainable Urban and Regional Development Studies, Volume:6 Issue: 2, 2025
Pages:
68 to 84
https://www.magiran.com/p2823430  
سامانه نویسندگان
  • Abedini، Mousa
    Corresponding Author (1)
    Abedini, Mousa
    Full Professor University of Mohaghegh Ardabili,, University of Mohaghegh Ardabili, Ardabil, Iran
  • Pasban، Amirhesam
    Author (3)
    Pasban, Amirhesam
اطلاعات نویسنده(گان) توسط ایشان ثبت و تکمیل شده‌است. برای مشاهده مشخصات و فهرست همه مطالب، صفحه رزومه را ببینید.
مقالات دیگری از این نویسنده (گان)