Evaluating Different Planting Design Compositions for Visual Landscape Quality in Street Planting

Öz

Street greening in urban settings fails due to several extreme conditions or inappropriate plant species and compositions. In recent years, urban transformations have been carried out in Erzurum, one of the most important cities of the Eastern Anatolia Region of Turkey. Seventeen different plant designs produced in computer medium for the Cumhuriyet Street, the most important street of the city and a trade center, were evaluated using visual landscape quality method. The designs were rated by 150 city questioners for color, size and form and the results were evaluated using the SPSS statistics software. The most preferred plant designs for the street had spherical form, pink color, slight texture and 1.5-2 meters tall. In addition, the proportion of closure in the plant designs produced in our study was computed and it was compared with the results of the analysis. The results are important in putting the outcomes into practice regarding the participation of public in the reformation of urban living areas.

Anahtar Kelimeler

• Urban plants
• plant design
• visual effect assessment
• streetscape.

Görsel Peyzaj Kalitesi Yönünden Cadde Ağaçlandirmasinda Farkli Bitkisel Tasarim Kompozisyonlarının Değerlendirilmesi

Öz

Kentlerde cadde ağaçlandırmaları; uygunsuz bitki türleri kullanımları ve ekstrem koşullardan dolayı çoğu zaman başarısız olur. Türkiye’nin Doğu Anadolu Bölgesi’nin önemli kentlerinden olan Erzurum kenti son yıllarda kentsel dönüşüm süreci içerisine girmiştir. Şehir merkezinde önemli bir odak noktası olan Cumhuriyet Caddesi üzerinde simulasyon tekniği kullanılarak ana aksda 17 farklı bitkisel tasarım çalışması yapılmıştır. Bitkilerle form, ölçü, doku ve renk özelliklerine göre farklı kompozisyonlar oluşturularak alanı kullanan 150 kişi ile birebir anket çalışması yapılmıştır. Anketlerin değerlendirilmesinde SPSS istatistik yazılımı kullanılarak varyans analizi yapılmıştır. Sonuçta en çok yuvarlak/küresel formlu, 1,5-2m uzunluğunda, pembe renkli, hafif tekstürlü ağaçların oluşturduğu bitki kompozisyonu tercih edilmiştir. Buna ilaveten bitkilerin kapalılık oranları hesaplanarak çıkan analiz sonuçları ile karşılaştırılmıştır. Sonuçlar kentsel alan yenileme çalışmalarında halkın katılımının sağlanması açısından önemlidir.

Anahtar Kelimeler

• Kent bitkileri
• bitkisel tasarım
• görsel etki değerlendirmesi
• yol manzarası
• yol ağacı

Kaynakça

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