Developing single- and double-entry above-ground tree biomass equations for Crimean Pine stands located in CAKÜ Research Forest

İlker Ercanlı; Muammer Şenyurt; Alkan Gunlu; Meriç Çakır; Ferhat Bolat; Sinan Bulut

Makale detayları

Developing single- and double-entry above-ground tree biomass equations for Crimean Pine stands located in CAKÜ Research Forest

Yazarlar:

İlker Ercanlı | Muammer Şenyurt | Alkan Gunlu | Meriç Çakır | Ferhat Bolat | Sinan Bulut

Yayıncı:

Cankiri Karatekin University

Ana Başlıklar:

Orman Biyokütlesi ve Biyoürünleri | Orman Biyometrisi

Dergi:

Anadolu Orman Araştırmaları Dergisi Vol.9 Issue 2, pp.126-134

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001298344

pISSN:

1309-856X

Anahtar kelimeler:

Özet:

 In this study, single and double entry stem, bark, leaf, branch, and total biomass equations were developed using a total of 50 trees measured in pure and even-aged Anatolian Crimean Pine stands located in Çankırı Karatekin University, Faculty of Forestry Research and Application Forests, Çankırı State Forest Planning Unit. Among the biomass equations developed, the coefficient of determination R2, the percent of total error TE, and the percent of mean absolute error MAE were calculated as 0.911, -4.7763, and 16.9823 for single-entry stem biomass, respectively. Those for double-entry stem biomass were found as 0.951, 0.0000, and 12.2506 in the same order. R2, TE, and MAE the values into square brackets in the following sentences are belong to double-entry equations,  for single- and double-entry bark biomass equations were 0.885 0.926, -4.2410 0.0000 and 20.3853 17.6638. In the same way, R2, TE, and MAE for single- and double-entry leaf biomass equations were obtained as 0.547 0.637, and 31.4892 0.0000 and 55.3247 57.1074. R2, TE, and MAE for single- and double-entry branch biomass equations were calculated as 0.781 0.793, 0.5932 6.2919 and 33.5256 34.7849. R2, TE, and MAE for single- and double-entry total biomass equations were obtained as 0.913 0.954, 2.3304 7.5169 and 17.5011 14.5473. The estimated parameters in all the equations were found to be statistically significant at 0.001 significance level.

 In this study, single and double entry stem, bark, leaf, branch, and total biomass equations were developed using a total of 50 trees measured in pure and even-aged Anatolian Crimean Pine stands located in Çankırı Karatekin University, Faculty of Forestry Research and Application Forests, Çankırı State Forest Planning Unit. Among the biomass equations developed, the coefficient of determination R2, the percent of total error TE, and the percent of mean absolute error MAE were calculated as 0.911, -4.7763, and 16.9823 for single-entry stem biomass, respectively. Those for double-entry stem biomass were found as 0.951, 0.0000, and 12.2506 in the same order. R2, TE, and MAE the values into square brackets in the following sentences are belong to double-entry equations,  for single- and double-entry bark biomass equations were 0.885 0.926, -4.2410 0.0000 and 20.3853 17.6638. In the same way, R2, TE, and MAE for single- and double-entry leaf biomass equations were obtained as 0.547 0.637, and 31.4892 0.0000 and 55.3247 57.1074. R2, TE, and MAE for single- and double-entry branch biomass equations were calculated as 0.781 0.793, 0.5932 6.2919 and 33.5256 34.7849. R2, TE, and MAE for single- and double-entry total biomass equations were obtained as 0.913 0.954, 2.3304 7.5169 and 17.5011 14.5473. The estimated parameters in all the equations were found to be statistically significant at 0.001 significance level.

 In this study, single and double entry stem, bark, leaf, branch, and total biomass equations were developed using a total of 50 trees measured in pure and even-aged Anatolian Crimean Pine stands located in Çankırı Karatekin University, Faculty of Forestry Research and Application Forests, Çankırı State Forest Planning Unit. Among the biomass equations developed, the coefficient of determination R2, the percent of total error TE, and the percent of mean absolute error MAE were calculated as 0.911, -4.7763, and 16.9823 for single-entry stem biomass, respectively. Those for double-entry stem biomass were found as 0.951, 0.0000, and 12.2506 in the same order. R2, TE, and MAE the values into square brackets in the following sentences are belong to double-entry equations,  for single- and double-entry bark biomass equations were 0.885 0.926, -4.2410 0.0000 and 20.3853 17.6638. In the same way, R2, TE, and MAE for single- and double-entry leaf biomass equations were obtained as 0.547 0.637, and 31.4892 0.0000 and 55.3247 57.1074. R2, TE, and MAE for single- and double-entry branch biomass equations were calculated as 0.781 0.793, 0.5932 6.2919 and 33.5256 34.7849. R2, TE, and MAE for single- and double-entry total biomass equations were obtained as 0.913 0.954, 2.3304 7.5169 and 17.5011 14.5473. The estimated parameters in all the equations were found to be statistically significant at 0.001 significance level.

 Bu çalışmada, Çankırı Orman İşletme Müdürlüğü sınırları içerisinde yer alan Çankırı Karatekin Üniversitesi Orman Fakültesi Araştırma ve Uygulama Ormanı içerisinde bulunan saf ve aynı yaşlı Anadolu Karaçamı meşcerelerinden seçilen 50 adet örnek ağaç kullanılarak tek ve çift girişli gövde, kabuk, ibre, dal ve toplam toprak üstü biyokütle denklemleri geliştirilmiştir. Geliştirilen bu denklemlerden, tek girişli gövde biyokütle denkleminin belirtme katsayısı R2, toplam hata yüzdesi THY, ortalama mutlak hata yüzdesi OMHY değerleri sırasıyla 0,911, -4,7763 ve 16,9823 olarak hesaplanmıştır. Bu değerler çift girişli gövde biyokütle denklemi için sırasıyla 0,951, 0,0000 ve 12,2506 olarak bulunmuştur. Tek ve çift girişli kabuk biyokütle denklemlerinin R2, THY ve OMHY değerleri devam eden cümlelerde köşeli parantez içerisinde verilen değerler çift girişli denklemlere ait,  sırasıyla 0,885 0,926, -4,2410 0,0000 ve 20,3853 17,6638tür. Tek ve çift girişli ibre biyokütle denklemi için benzer şekilde R2, THY ve OMHY değerleri sırasıyla 0,547 0,637, ve 31,4892 0,0000 ve 55,3247 57,1074 olarak elde edilmiştir. Tek ve çift girişli dal biyokütle denklemlerinin R2, THY ve OMHY değerleri sırasıyla 0,781 0,793, 0,5932 6,2919 ve 33,5256 34,7849 olarak hesaplanmıştır. Tek ve çift girişli toplam toprak üstü biyokütle denklemlerinin R2, THY ve OMHY değerleri ise sırasıyla 0,913 0,954, 2,3304 7,5169 ve 17,5011 14,5473 olarak elde edilmiştir. Tüm bu denklemlere ilişkin bütün parametreler, istatistiksel olarak p0,001 önem düzeyi ile anlamlı bulunmuştur.

Makale detayları

Developing single- and double-entry above-ground tree biomass equations for Crimean Pine stands located in CAKÜ Research Forest

Yazarlar:

İlker Ercanlı | Muammer Şenyurt | Alkan Gunlu | Meriç Çakır | Ferhat Bolat | Sinan Bulut

Yayıncı:

Cankiri Karatekin University

Ana Başlıklar:

Orman Biyokütlesi ve Biyoürünleri | Orman Biyometrisi

Dergi:

Anadolu Orman Araştırmaları Dergisi Vol.9 Issue 2, pp.126-134

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001298344

pISSN:

1309-856X

Biomass

regression

prediction

Crimean PineBiyokütle bileşenleri

regresyon

tahmin

Karaçam

Sayı

Makale detayları

Yazarlar: İlker Ercanlı | Muammer Şenyurt | Alkan Gunlu | Meriç Çakır | Ferhat Bolat | Sinan Bulut

Yayıncı: Cankiri Karatekin University

Ana Başlıklar: Orman Biyokütlesi ve Biyoürünleri | Orman Biyometrisi

Dergi: Anadolu Orman Araştırmaları Dergisi Vol.9 Issue 2, pp.126-134

Belge Tipi: Makale

Yayın Tarihi: 1/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001298344

pISSN: 1309-856X

Sayı

Yazarlar:

İlker Ercanlı | Muammer Şenyurt | Alkan Gunlu | Meriç Çakır | Ferhat Bolat | Sinan Bulut

Yayıncı:

Cankiri Karatekin University

Ana Başlıklar:

Orman Biyokütlesi ve Biyoürünleri | Orman Biyometrisi

Dergi:

Anadolu Orman Araştırmaları Dergisi Vol.9 Issue 2, pp.126-134

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001298344

pISSN:

1309-856X