The Effects of Pine Processionary Moth (Thaumetopoea wilkinsoni Tams.) on Diameter and Volume Increment in Crimean Pine (Pinus nigra Arnold) Forests of Bartın

İsmet Daşdemir; Yağmur Yeşilbaş

Makale detayları

The Effects of Pine Processionary Moth (Thaumetopoea wilkinsoni Tams.) on Diameter and Volume Increment in Crimean Pine (Pinus nigra Arnold) Forests of Bartın

Yazarlar:

İsmet Daşdemir | Yağmur Yeşilbaş

Yayıncı:

Bartin University

Ana Başlıklar:

Ormancılık Politikası | Ekonomisi ve Hukuku

Dergi:

Bartın Orman Fakültesi Dergisi Vol.27 Issue 1, pp.46-61

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341430

pISSN:

1302-0943

Anahtar kelimeler:

Özet:

 The pine processionary moth PPM causes damage by eating the needles of trees. It was determined that the normal increment and growth decreased in trees affected by this insect depending on the severity of the epidemic. The aim of this study is to determine the diameter and volume increment losses caused by the PPM in trees in the Crimean pine forests of Bartın province. The research material was obtained from nine temporary trial areas determined in the natural Crimean pine forests of Bartın province. Diameter and height measurements were made on all trees in the trial areas and increment cores were taken from a total of 346 trees. The annual diameter and volume increment values were determined for the period 2010-2021. The period 2015-2017 was determined as loss years. Three classes were created as control, moderate, and high harmful, according to the three-year total diameter increment in the damage years. The differences between the diameter and volume increments of the three classes were checked by the ANOVA and the Duncan test. The effect of climate variables on these differences was examined by the Standardized Precipitation Index and the Erinç Precipitation Efficiency Index. It was understood that increment losses are not affected by the amount of precipitation and temperature. It was determined that there was a 29.89 diameter and 26.72 volume increment loss in the moderate harmful group, and a 40.22 diameter and 35.09 volume increment loss in the high harmful group. Since diameter and volume increment losses have a negative impact on tree wealth and business income, some suggestions were developed to reduce insect damage and ensure sustainable forest management.

 The pine processionary moth PPM causes damage by eating the needles of trees. It was determined that the normal increment and growth decreased in trees affected by this insect depending on the severity of the epidemic. The aim of this study is to determine the diameter and volume increment losses caused by the PPM in trees in the Crimean pine forests of Bartın province. The research material was obtained from nine temporary trial areas determined in the natural Crimean pine forests of Bartın province. Diameter and height measurements were made on all trees in the trial areas and increment cores were taken from a total of 346 trees. The annual diameter and volume increment values were determined for the period 2010-2021. The period 2015-2017 was determined as loss years. Three classes were created as control, moderate, and high harmful, according to the three-year total diameter increment in the damage years. The differences between the diameter and volume increments of the three classes were checked by the ANOVA and the Duncan test. The effect of climate variables on these differences was examined by the Standardized Precipitation Index and the Erinç Precipitation Efficiency Index. It was understood that increment losses are not affected by the amount of precipitation and temperature. It was determined that there was a 29.89 diameter and 26.72 volume increment loss in the moderate harmful group, and a 40.22 diameter and 35.09 volume increment loss in the high harmful group. Since diameter and volume increment losses have a negative impact on tree wealth and business income, some suggestions were developed to reduce insect damage and ensure sustainable forest management.

 The pine processionary moth PPM causes damage by eating the needles of trees. It was determined that the normal increment and growth decreased in trees affected by this insect depending on the severity of the epidemic. The aim of this study is to determine the diameter and volume increment losses caused by the PPM in trees in the Crimean pine forests of Bartın province. The research material was obtained from nine temporary trial areas determined in the natural Crimean pine forests of Bartın province. Diameter and height measurements were made on all trees in the trial areas and increment cores were taken from a total of 346 trees. The annual diameter and volume increment values were determined for the period 2010-2021. The period 2015-2017 was determined as loss years. Three classes were created as control, moderate, and high harmful, according to the three-year total diameter increment in the damage years. The differences between the diameter and volume increments of the three classes were checked by the ANOVA and the Duncan test. The effect of climate variables on these differences was examined by the Standardized Precipitation Index and the Erinç Precipitation Efficiency Index. It was understood that increment losses are not affected by the amount of precipitation and temperature. It was determined that there was a 29.89 diameter and 26.72 volume increment loss in the moderate harmful group, and a 40.22 diameter and 35.09 volume increment loss in the high harmful group. Since diameter and volume increment losses have a negative impact on tree wealth and business income, some suggestions were developed to reduce insect damage and ensure sustainable forest management.

 Çam kese böceği ağaçların ibrelerini yiyerek zarar yapmaktadır. Bu böceğin arız olduğu ağaçlarda salgının şiddetine bağlı olarak normal artımın ve büyümenin azaldığı saptanmıştır. Bu çalışmanın amacı Bartın ili karaçam ormanlarındaki ağaçlarda çam kese böceğinin neden olduğu çap ve hacim artım kayıplarını tespit etmektir. Araştırma materyali Bartın ili doğal karaçam ormanlarında belirlenen dokuz geçici deneme alanından elde edilmiştir. Deneme alanlarındaki tüm ağaçlarda çap ve boy ölçümleri yapılmış ve toplam 346 adet ağaçtan artım kalemi alınmıştır. 2010-2021 dönem için yıllık çap ve hacim artım miktarları belirlenmiştir. 2015-2017 dönemi zarar yılları olarak tespit edilmiştir. Zarar yıllarındaki üç yıllık çap artım toplamına göre kontrol, orta ve çok zararlı şeklinde üç sınıf oluşturulmuştur. Üç sınıfın çap ve hacim artım değerleri arasında fark olup olmadığı ANOVA ve Duncan testi ile denetlenmiştir. Bu farklara iklim değişkenlerinin etkisi Standardize Yağış İndisi ve Erinç Yağış Etkinlik İndisi ile incelenmiştir. Buna göre 2015-2017 dönemindeki artım kayıplarının yağış ve sıcaklık miktarından etkilenmediği anlaşılmıştır. Böcek zararından dolayı orta zararlı grupta 29,89 oranında çap ve 26,72 oranında hacim artım kaybının, çok zararlı grupta ise 40,28 oranında çap ve 35,09 oranında hacim artım kaybının olduğu saptanmıştır. Çap ve hacim artım kayıpları ağaç serveti ve işletme gelirleri üzerinde olumsuz etki yaptığı için, böcek zararının azaltılmasına ve sürdürülebilir orman yönetiminin sağlanmasına ilişkin bazı öneriler geliştirilmiştir.

Makale detayları

The Effects of Pine Processionary Moth (Thaumetopoea wilkinsoni Tams.) on Diameter and Volume Increment in Crimean Pine (Pinus nigra Arnold) Forests of Bartın

Yazarlar:

İsmet Daşdemir | Yağmur Yeşilbaş

Yayıncı:

Bartin University

Ana Başlıklar:

Ormancılık Politikası | Ekonomisi ve Hukuku

Dergi:

Bartın Orman Fakültesi Dergisi Vol.27 Issue 1, pp.46-61

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341430

pISSN:

1302-0943

Thaumetopoea wilkinsoni

Pinus nigra

insect damage

increment loss

climate-increment relationshipThaumetopoea wilkinsoni

Pinus nigra

böcek zararı

artım kaybı

iklim-artım ilişkisi

Sayı

Makale detayları

Yazarlar: İsmet Daşdemir | Yağmur Yeşilbaş

Yayıncı: Bartin University

Ana Başlıklar: Ormancılık Politikası | Ekonomisi ve Hukuku

Dergi: Bartın Orman Fakültesi Dergisi Vol.27 Issue 1, pp.46-61

Belge Tipi: Makale

Yayın Tarihi: 4/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001341430

pISSN: 1302-0943

Sayı

Yazarlar:

İsmet Daşdemir | Yağmur Yeşilbaş

Yayıncı:

Bartin University

Ana Başlıklar:

Ormancılık Politikası | Ekonomisi ve Hukuku

Dergi:

Bartın Orman Fakültesi Dergisi Vol.27 Issue 1, pp.46-61

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341430

pISSN:

1302-0943