Kentsel yeşil alanlardaki ekosistem servislerinin hesaplanması: Eugene Pioneer Mezarlığı, Eugene, Oregon (ABD)

Amaç: Bu çalışmanın amacı, Eugene Pioneer Mezarlığı, Oregon (ABD) 'de, dört düzenleyici ekosistem servisini ölçmektir; bunlar karbon tutulması ve depolanması, yüzey akışının önlenmesi, hava kirleticilerinin tutulması ve oksijen üretimidir. Materyal ve Yöntem: Veri hazırlama aşamasında ağaçlara ilişkin ölçülen veriler kâğıt üzerine kaydedilmiştir. Arazi kullanım türü, ağaç türleri, ağacın göğüs yüksekliğindeki çapı-DBH (cm), ağaç yüksekliği (m), canlı taç yüksekliği (m), tacın yerden yüksekliği (m), kayıp taç yüzdesi. Veri analizinde I-Tree Eco model versiyon 6 kullanılmıştır. Araştırma Bulguları: Mezarlıktaki ağaçlar brüt olarak yılda yaklaşık 7.136 ton karbonu tutmakta ve 1.610 ton karbonu depolamaktadır. Alandaki bitkiler yılda yaklaşık 452 m3 bir yüzey akışı engellemekte ve 143,9 kg hava kirleticisini ortadan kaldırmaktadır. Son olarak mezarlıktaki ağaçların yıllık 19,03 ton oksijen ürettiği hesaplanmıştır. Sonuç: Bu çalışma, daha iyi düzenleyici ekosistem servislerini üretebilmek için geniş taçlı ağaçların kullanıldığı, büyük bölümü geçirgen olan geniş yeşil alanların tasarımını önermektedir.

Anahtar Kelimeler:

yeşil alanlar, ekosistem servisleri, I-Tree Eco, mezarlık

Assessing ecosystem services of urban green spaces: the case of Eugene Pioneer Cemetery, Eugene, OR (USA)

Objective: The objective of this study was to quantify four regulating ecosystem services; carbon sequestration and storage, avoided run-off, air pollution removal by trees and oxygen production in the Eugene Pioneer Cemetery, OR (USA). Material and Methods: For data preparation the field data of trees was collected on paper data sheets. Collected data in the field were land-use type, tree species, diameters of breast height-DBH (cm), total tree height (m), live crown height (m), crown base height (m), and crown percent missing. In data analysis I-Tree Eco model version 6 developed by the U.S. Forest Service, Northern Research Station was used. Results: The gross sequestration of the cemetery trees is about 7,136 metric tons of carbon per year. Trees in the cemetery were estimated to store 1,610 metric tons of carbon. The trees and shrubs of the cemetery help to avoid run-off by an estimated 452 cubic meters a year. It was estimated that trees remove 143,9 kilograms of air pollutions. Trees in the cemetery were estimated to produce 19,03 metric tons of oxygen per year. Conclusion: This study recommends large green areas (large permeable surfaces) and trees with large crowns in the planting design as a better solution for regulating ecosystem services.

Keywords:

Green areas, ecosystem services, I-Tree Eco, cemetery,

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