Modeling of stand height curves for natural brutian pine stands in Burdur-Pamucak region

Serdar Carus; Sahra Karakaş

Makale detayları

Modeling of stand height curves for natural brutian pine stands in Burdur-Pamucak region

Yazarlar:

Serdar Carus | Sahra Karakaş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Orman Biyometrisi

Dergi:

Turkish Journal of Forestry Vol.25 Issue 3, pp.267-274

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328816

pISSN:

2149-3898

Anahtar kelimeler:

Özet:

 In this study, a total of 20 diameter-height h-d models were tested using 74 sample plot data taken from natural Brutian pine Pinus brutia Ten. stands in the Burdur-Pamucak region. The sample plot data was divided into two groups, the first group n 50 and nearly 70 was used to develop models, and the second group n24 and nearly 30 was used to test the developed models. The performances of the developed height-diameter models with two n7, three n10 or four parameters n3 in height estimation were compared using six different statistical criterion values Mean Absolute Error 2.04, Maximum Absolute Error 8.81, RMSE 2.75, R2 0.706, Mean Error -0.18 and AIC 915.30. The most successful results were obtained with the 3-parameter models developed by Seber-Wild, Seber-Wild and 4- parameter model, Zeide, respectively. Similar results were obtained in the evaluation using an independent data set. By using the best h-d equation developed in this study, it is possible to estimate single tree height with the help of diameter at breast height for Brutian pine stands with similar characteristics within the region of Pamucak Forest Directorate.

 In this study, a total of 20 diameter-height h-d models were tested using 74 sample plot data taken from natural Brutian pine Pinus brutia Ten. stands in the Burdur-Pamucak region. The sample plot data was divided into two groups, the first group n 50 and nearly 70 was used to develop models, and the second group n24 and nearly 30 was used to test the developed models. The performances of the developed height-diameter models with two n7, three n10 or four parameters n3 in height estimation were compared using six different statistical criterion values Mean Absolute Error 2.04, Maximum Absolute Error 8.81, RMSE 2.75, R2 0.706, Mean Error -0.18 and AIC 915.30. The most successful results were obtained with the 3-parameter models developed by Seber-Wild, Seber-Wild and 4- parameter model, Zeide, respectively. Similar results were obtained in the evaluation using an independent data set. By using the best h-d equation developed in this study, it is possible to estimate single tree height with the help of diameter at breast height for Brutian pine stands with similar characteristics within the region of Pamucak Forest Directorate.

 In this study, a total of 20 diameter-height h-d models were tested using 74 sample plot data taken from natural Brutian pine Pinus brutia Ten. stands in the Burdur-Pamucak region. The sample plot data was divided into two groups, the first group n 50 and nearly 70 was used to develop models, and the second group n24 and nearly 30 was used to test the developed models. The performances of the developed height-diameter models with two n7, three n10 or four parameters n3 in height estimation were compared using six different statistical criterion values Mean Absolute Error 2.04, Maximum Absolute Error 8.81, RMSE 2.75, R2 0.706, Mean Error -0.18 and AIC 915.30. The most successful results were obtained with the 3-parameter models developed by Seber-Wild, Seber-Wild and 4- parameter model, Zeide, respectively. Similar results were obtained in the evaluation using an independent data set. By using the best h-d equation developed in this study, it is possible to estimate single tree height with the help of diameter at breast height for Brutian pine stands with similar characteristics within the region of Pamucak Forest Directorate.

 Bu çalışmada, Burdur-Pamucak yöresinde yer alan doğal yoldan gelmiş kızılçam Pinus brutia Ten. meşcerelerinden alınan 74 örnek nokta verisi ile literatürde çok kullanılan toplam 20 adet meşcere boy gelişimi modelinin tahmin başarıları karşılaştırılmıştır. Araştırmada, örnek nokta verileri iki alt gruba ayrılmış olup, birinci grup n50 ve yaklaşık 70 model geliştirmek için, ikinci grup ise n24 ve yaklaşık 30 geliştirilen modellerin uygunluğu test edilmiştir. Meşcere boy gelişimi modelleri parametre sayısı bakımından iki n7, üç n10 ya da dört parametreli n3 olmak üzere üç gruba ayrılmış ve tek ağaç boyu tahminlerindeki performansları, altı farklı istatistiksel ölçüt Ortalama mutlak hata 2.04, Maksimum mutlak hata 8.81, Hata karelerinin ortalamasının karekökü 2.75, Belirtme katsayısı 0.706, Ortalama hata -0.18 ve Akaike bilgi ölçütü 915.30 kullanılarak karşılaştırılmıştır. Test edilen modeller içinde en başarılı sonuçlar sırasıyla, 3 Parametreli Seber- Wild, 3 Parametreli Seber- Wild ve 4 Parametreli Zeide tarafından geliştirilen modeller ile elde edilmiştir. Bağımsız veri seti ile yapılan değerlendirmede de yakın sonuçlar bulunmuştur. Çalışmada geliştirilen ve başarılı bulunan modeller kullanılarak, Pamucak Orman İşletme Şefliği sınırları içerisinde yer alan benzer özelliklere sahip doğal kızılçam meşcereleri için göğüs çapı yardımıyla tek ağaç boyunun güvenle tahmin edilmesi mümkündür.

Makale detayları

Modeling of stand height curves for natural brutian pine stands in Burdur-Pamucak region

Yazarlar:

Serdar Carus | Sahra Karakaş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Orman Biyometrisi

Dergi:

Turkish Journal of Forestry Vol.25 Issue 3, pp.267-274

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328816

pISSN:

2149-3898

Pinus brutia

Diameter

Height

Stand height developmentKızılçam

Çap

Boy

Meşcere boy gelişimi

Sayı

Makale detayları

Yazarlar: Serdar Carus | Sahra Karakaş

Yayıncı: Isparta University of Applied Sciences

Ana Başlıklar: Orman Biyometrisi

Dergi: Turkish Journal of Forestry Vol.25 Issue 3, pp.267-274

Belge Tipi: Makale

Yayın Tarihi: 9/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001328816

pISSN: 2149-3898

Sayı

Yazarlar:

Serdar Carus | Sahra Karakaş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Orman Biyometrisi

Dergi:

Turkish Journal of Forestry Vol.25 Issue 3, pp.267-274

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328816

pISSN:

2149-3898