نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه جغرافیای طبیعی، دانشکده علوم اجتماعی، دانشگاه محقق اردبیلی، اردبیل، ایـران
2 گروه آبخیزداری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، ایـران
3 گروه منابع طبیعی و عضو پژوهشکده مدیریت آب، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق ادربیلی، اردبیل، ایـران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Aim: Erosion is a critical geomorphological process with significant environmental implications, including land degradation, fertility loss, and negative effects on aquatic ecosystems. It is recognized as an environmental hazard due to the substantial damages it can cause.
Material & Method: This research focuses on zoning the soil erosion potential in the Khiavchai area of Meshginshahr using geomorphometric indicators and a fuzzy approach. Various variables, including slope, aspect, surface curvature, range length, Melton's roughness coefficient, stream power index, drainage density, topographic wetness index, distance from the river, vegetation, precipitation, and geological formations, were used. The information layers were combined based on their impact on erosion using different fuzzifier functions. The fuzzy gamma operator in a GIS platform was utilized for the combination and overlaying of the indicators.
Finding: The results revealed that approximately 8.4% of the study area exhibited a very high erosion potential, while around 18.7% had a high erosion potential, primarily located in the middle parts of the watershed. The high erodibility in these areas can be attributed to erodible geological formations, steep slopes, and high drainage density. Other contributing factors include predominantly southern and western slope aspects, longer slopes, and poor vegetation.
Conclusion: The used indicators in assessment of erosion-prone areas provide insights into the geomorphological and hydrological conditions of the study watershed. The prepared erosion map can serve as a foundation for prioritizing soil conservation management measures and reducing the impact of erosion.
Innovation: This research employs a combination of geomorphometric indicators and a fuzzy approach to accurately assess soil erosion potential. The practical application lies in utilizing the study's findings to effectively prioritize areas for implementing erosion mitigation and soil conservation measures in land management.
کلیدواژه‌ها [English]
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