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Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi

2146-1880 2146-698X

Artvin Çoruh University

10.17474/artvinofd.535526

Forest Industry Engineering

Orman Endüstri Mühendisliği

Toros Göknarı (Abies cilicica Car.)’nda Yaprak Alan İndeksinin Belirlenmesi: Adana Kozan Yöresi Örneği

Determination of Leaf Area Index in Taurus Fir (Abies cilicica Car.): Case Study of Adana-Kozan

https://orcid.org/0000-0001-6136-8392

Oktan

Ercan

KARADENİZ TEKNİK ÜNİVERSİTESİ

09 15 2019

20 2 218 223 03 04 2019 10 24 2019

2000

Artvin Coruh University Journal of Forestry Faculty

Yaprak alan indeksi (YAİ), orman ekosistemlerinin temel yapısalkarakterlerinin ortaya konmasında önemli faktörlerin başında gelmektedir. ÇünküYAİ meşcerenin tepe çatısında oluşan birçok biyolojik ve fiziksel sürecindeğişimini ortaya koyabilmektedir. Bu bağlamda, YAİ değerlerinin belirlenmesiormancılık açısından önem taşımaktadır. YAİ’nin hesaplanmasında doğrudan vedolaylı birçok yöntem kullanılmaktadır. Bu çalışmada doğrudan belirlenmeyöntemi kullanılmıştır. Bunun için farklı bakılarda, aynı yükseklik, aynı eğimve yaklaşık aynı kapalılıkta (0,9-1,0) meşcerelerden toplam 45 adet ağaçtanalınan 180 sürgünde ölçümler yapılmıştır. Buna göre kuzey ve güney olarakfarklı bakılardan alınan ağaçlarda yapılan YAİ değerleri farklı (güneybakılardaki ağaçlarda (σ =0,971) ve kuzey bakılardaki ağaçlarda (σ = 0,93))bulunmuştur. YAİ değerleri kuzey bakıdan alınan örneklerde daha yüksekçıkmıştır. Bu sonuca göre, silvikültürel müdahalelerin yapılacağı meşcerelerdenaynı meşcere yapısında olsa dahi farklı şiddette uygulamaların yapılmasıgerektiği önerilmiştir.

Leaf area index is one of the most important factorsin presenting the basic structural characteristics of forest ecosystems.Because, leaf area index can reveal the change of many biological and physicalprocesses in the canopy. So, determination of the leaf area index is veryimportant in forestry. In calculation of the leaf area index many direct andindirect methods are used. In this study direct method was used in calculation.For this purpose, measurements were made in 180 shoots taken from a total of 45trees from different stands at the same altitude, aspect and have the sameslope gradient and approximately same canopy closure (0.9-1.0). Obtainedresults showed that leaf area index was higher in the samples taken from Northaspect ((σ = 0,93)) then South ( (σ = 0,971)). Obtained results indicated thatsilvicultural treatments at different intensity should be carried out even ifthe stands were in the same stand structure.

Abies cilicica Yaprak Alan İndeksi Silvikültür Kapalılık Verimlilik

Abies cilicica Leaf Area Index Silviculture Canopy closure Productivity

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