Developing a new tree volume equation for Pinus brutia distributed in the Yeşilvadi region of Antalya

Ferhat Bolat

Makale detayları

Developing a new tree volume equation for Pinus brutia distributed in the Yeşilvadi region of Antalya

Yazarlar:

Ferhat Bolat

Yayıncı:

Cankiri Karatekin University

Ana Başlıklar:

Orman Biyometrisi

Dergi:

Anadolu Orman Araştırmaları Dergisi Vol.10 Issue 2, pp.108-113

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001330170

pISSN:

1309-856X

Anahtar kelimeler:

Özet:

 Background and aims Growing stock and timber increment are crucial factors to consider during the planning stage of forest management. This study aimed to develop a new tree volume equation for Brutian pine Pinus brutia Ten. stands located in the Yeşilvadi region of Antalya. Methods To achieve the mentioned goal, measurements were conducted on sixty-five trees selected from these stands, categorized into different diameter classes. The power-type equation was employed to develop the tree volume equation. The proposed new model was compared with its counterparts, considering error metrics. Additionally, the stability of these models in terms of estimation behavior was analysed using bias and curvature measures. Results The alternative model resulted in significant uncertainty in tree volume predictions, although it outperformed the proposed model in terms of error metrics. The proposed model provided acceptable tree volume predictions and exhibited a stable estimation behavior. Conclusions Based on the results, it is recommended to consider the models estimation behavior to ensure realistic and reliable tree volume predictions.

 Background and aims Growing stock and timber increment are crucial factors to consider during the planning stage of forest management. This study aimed to develop a new tree volume equation for Brutian pine Pinus brutia Ten. stands located in the Yeşilvadi region of Antalya. Methods To achieve the mentioned goal, measurements were conducted on sixty-five trees selected from these stands, categorized into different diameter classes. The power-type equation was employed to develop the tree volume equation. The proposed new model was compared with its counterparts, considering error metrics. Additionally, the stability of these models in terms of estimation behavior was analysed using bias and curvature measures. Results The alternative model resulted in significant uncertainty in tree volume predictions, although it outperformed the proposed model in terms of error metrics. The proposed model provided acceptable tree volume predictions and exhibited a stable estimation behavior. Conclusions Based on the results, it is recommended to consider the models estimation behavior to ensure realistic and reliable tree volume predictions.

 Background and aims Growing stock and timber increment are crucial factors to consider during the planning stage of forest management. This study aimed to develop a new tree volume equation for Brutian pine Pinus brutia Ten. stands located in the Yeşilvadi region of Antalya. Methods To achieve the mentioned goal, measurements were conducted on sixty-five trees selected from these stands, categorized into different diameter classes. The power-type equation was employed to develop the tree volume equation. The proposed new model was compared with its counterparts, considering error metrics. Additionally, the stability of these models in terms of estimation behavior was analysed using bias and curvature measures. Results The alternative model resulted in significant uncertainty in tree volume predictions, although it outperformed the proposed model in terms of error metrics. The proposed model provided acceptable tree volume predictions and exhibited a stable estimation behavior. Conclusions Based on the results, it is recommended to consider the models estimation behavior to ensure realistic and reliable tree volume predictions.

 Giriş ve Hedefler Ormanların planlanması aşamasında, ağaç serveti ve artımı önemli ölçütlerdendir. Bu çalışmada Antalya-Yeşilvadi yöresinde yayılış yapan saf Kızılçam Pinus brutia Ten. meşcereleri için yeni bir ağaç hacim denkleminin geliştirilmesi amaçlanmıştır. Yöntemler Söz konusu amacı gerçekleştirmek için ilgili meşcerelerden farklı çap basamakları dikkate alınarak seçilen toplam altmış beş ağaçta ölçümler yapılmıştır. Ağaç hacim denklemini geliştirilmek için üssel model formu esas alınmıştır. Önerilen yeni model, hata ölçütleri dikkate alınarak literatürdeki alternatifiyle kıyaslanmıştır. Ayrıca, yanlılık ve eğrisellik ölçütleri ile söz konusu modellerin tahmin davranışları açısından kararlı bir yapıda olup olmadıkları analiz edilmiştir. Bulgular Alternatif model, hata ölçütleri bakımından küçük farklarla geliştirilen yeni modelden daha başarılı olsa da tahmin davranışı açısından belirsizlikler içermektedir. Geliştirilen yeni model, hata ölçütleri bakımından kabul edilebilir tahminler üretmiş ve kararlı bir tahmin davranışı sergilemiştir. Sonuçlar Elde edilen sonuçlara bağlı olarak, gerçekçi ve güvenilir ağaç hacim tahminleri elde etmek için model davranış analizinin dikkate alınması önerilmektedir.

Makale detayları

Developing a new tree volume equation for Pinus brutia distributed in the Yeşilvadi region of Antalya

Yazarlar:

Ferhat Bolat

Yayıncı:

Cankiri Karatekin University

Ana Başlıklar:

Orman Biyometrisi

Dergi:

Anadolu Orman Araştırmaları Dergisi Vol.10 Issue 2, pp.108-113

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001330170

pISSN:

1309-856X

Allometric relationships

bias analysis

parametric nonlinearity

bootstrapAllometrik ilişkiler

yanlılık analizi

parametre etkili eğrisellik

yeniden örnekleme

Sayı

Makale detayları

Yazarlar: Ferhat Bolat

Yayıncı: Cankiri Karatekin University

Ana Başlıklar: Orman Biyometrisi

Dergi: Anadolu Orman Araştırmaları Dergisi Vol.10 Issue 2, pp.108-113

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001330170

pISSN: 1309-856X

Sayı

Yazarlar:

Ferhat Bolat

Yayıncı:

Cankiri Karatekin University

Ana Başlıklar:

Orman Biyometrisi

Dergi:

Anadolu Orman Araştırmaları Dergisi Vol.10 Issue 2, pp.108-113

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001330170

pISSN:

1309-856X