AHP ile Taşkın Risk Analizi ve Doğal Taşkın Yönetiminde Ormanların Rolü: Türkiye'nin Kuzeyinden Bir Vaka Çalışması

Yıl 2023, Cilt: 23 Sayı: 3, 282 - 297, 06.12.2023

Hasan Aksoy

https://doi.org/10.17475/kastorman.1394958

Öz

Çalışmanın amacı: Bu çalışmanın amacı, taşkın ve taşkın olaylarına sıkça rastlanan çalışma alanının taşkın risk haritasını AHP yöntemi ile belirlemektir.
Çalışma alanı: The study was carried out within the boundaries of the Sinop Regional Directorate of Forestry, Ayancık Forest Management Directorate.
Materyal ve yöntem: Çalışma alanı taşkın risk haritası Analitik Hiyerarşi Süreci (AHP) yöntemi ile üretildi. AHP için slope, precipitations, aspect, stream distance, land use and soil olmak üzere 6 farklı kriter kullanıldı. Ormanların taşkın riski üzerine etkisini analiz etmek için çalışma alanına ait forest type maps kullanıldı. Orman yapısı itibarı ile stand structure, coniferous, broadleaf and mixed forest olmak üzere 3 sınıfa ayrıldı.
Sonuçlar: Orman yapısına göre taşkın riskinin değiştiği tespit edildi. Coniferous forest sınıfı taşkın riski’nin en az olduğu, mixed forest ise taşkın riskinin fazla olduğu sınıf olarak tespit edildi.
Araştırma vurguları: Orman yapısının taşkın hasarının boyutunu farklı oranlarda azaltma eğiliminde olduğunu ve dolayısıyla taşkın olayları sırasında meydana gelecek zararları azaltma ve engelleme yeteneğine sahip olduğunu gösterdi.

Anahtar Kelimeler

Taşkın Riski, AHP, Stant Yapısı, Orman Tipi, CBS

Flood Risk Analysis with AHP and the Role of Forests in Natural Flood Management: A Case Study from the North of Türkiye

Öz

Aim of studty: The aim of this study is to determine the flood risk map of the study area where floods and flood events are frequently encountered by AHP method.
Study area: The study was carried out within the boundaries of the Sinop Regional Directorate of Forestry, Ayancık Forest Management Directorate.
Material and method: The flood risk map of the study area was produced by Analytical Hierarchy Process (AHP) method. For AHP, 6 different criteria were used: slope, precipitations, aspect, stream distance, land use, and soil. Forest type maps of the study area were used to analyze the impact of forests on flood risk. In terms of forest structure, the stand structure was divided into 3 classes as coniferous, broadleaf, and mixed forest.
Main results: The results showed that flood risk varies with forest structure. Coniferous forest class was determined as the class with the lowest flood risk and mixed forest as the class with the highest flood risk.
Research highlights: It was determined that the flood risk changed according to the forest structure. Coniferous forest class was determined as the class with the least flood risk, and mixed forest was determined as the class with the highest flood risk.

Anahtar Kelimeler

Flood Risk, AHP, Stand Structure, Forest Type, GIS

Kaynakça

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