Investigation of the effects of different plant groups on surface runoff

Abstract

Runoff is defined as the infiltration of water into the soil due to urbanisation, and it directly affects the natural water cycle, especially in urban areas and regions with intensive anthropogenic development. The present study aims to assess the impact of various vegetation groups, especially tree and shrub cover, on runoff. The 'Curve Number' method was utilised to calculate runoff amounts for Istanbul, Sariyer region, employing NDVI data for the purpose. The findings of this study demonstrate that the presence of tree cover has a beneficial effect on runoff. The study emphasises the importance of prioritising tree groups in urban areas for effective water management and the protection of existing groups.

Keywords

• Surface runoff
• NDVI
• Green infrastructure
• SCS-CN

Farklı bitki gruplarının yüzeysel akış üzerindeki etkilerinin incelenmesi

Abstract

Kentleşmeye bağlı olarak suyun toprağa sızması olarak tanımlanan yüzeysel akış, özellikle kentsel alanlarda ve antropojenik gelişimin yoğun olduğu bölgelerde doğal su döngüsünü doğrudan etkilemektedir. Bu çalışma, çeşitli bitki gruplarının, özellikle de ağaç ve çalı örtüsünün yüzeysel akış üzerindeki etkisini değerlendirmeyi amaçlamaktadır. İstanbul, Sarıyer ilçesi için yüzeysel akış miktarlarını hesaplamak amacıyla 'Eğri Numarası' yöntemi kullanılmış ve bu amaçla NDVI verileri kullanılmıştır. Bu çalışmanın bulguları, ağaç örtüsünün varlığının yüzeysel akış üzerinde faydalı bir etkiye sahip olduğunu göstermektedir. Çalışma, etkin su yönetimi için kentsel alanlarda ağaç gruplarına öncelik verilmesinin ve mevcut grupların korunmasının önemini vurgulamaktadır.

Keywords

• Yüzeysel akış
• NDVI
• Yeşil altyapı
• SCS-CN

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