Kastamonu Bölgesi Karaçam Meşcerelerinin Yetişme Ortamı Verim Gücüne Etki Eden Ekolojik Faktörler

Year 2024, Volume: 24 Issue: 3, 281 - 291

Mehmet Seki , Oytun Emre Sakıcı

https://doi.org/10.17475/kastorman.1599966

Abstract

Çalışmanın amacı: Bu çalışma kapsamında, Kastamonu Bölgesi’nde yer alan Karaçam (Pinus nigra J.F. Arnold subsp. pallasiana (Lamb.) Holmboe) meşcerelerinin yetişme ortamı verim gücü ile topografya, iklim ve toprak özellikleri gibi ekolojik faktörler arasındaki ilişkiler araştırılmıştır.
Çalışma alanı: Bu çalışma, Kastamonu Bölgesi’ndeki Karaçam meşcerelerinde gerçekleştirilmiştir.
Materyal ve yöntem: Çalışma materyali olarak saf Karaçam meşcerelerinden alınmış 36 adet örnek alan verisinden yararlanılmıştır.
Temel sonuçlar: Araştırma sonuçları, yağış ve sıcaklık gibi iklim özellikleri ile yetişme ortamı verim gücü arasında kuvvetli bir ilişki olduğunu göstermiştir. İyi ve fena bonitet sınıfları için iklim özellikleri önemli farklılıklar göstermektedir ve bu özellikler bölgedeki Karaçam meşcerelerinin bonitet sınıflandırması için kullanılabilecektir. Bunun yanında, ekolojik faktörler kullanılarak uygulanan Temel Bileşen Analizi (Principal Component Analysis, PCA) iyi ve fena bonitet sınıfları için kuvvetli bir ayrışma olduğunu göstermiştir. PCA toplam varyansın %68.7’sini açıklamıştır (PC1: %37.2, PC2: %31.5).
Araştırma vurguları: Karaçam toprak istekleri bakımından oldukça kanaatkar bir türdür. Buna rağmen, yüksek yağış alan bölgelerde yüksek büyüme potansiyelleri gösterebilmektedir. Bu çalışma sonuçları Karaçam için optimal yetişme ortamı koşulları hakkında önemli bilgiler sunmaktadır. Ayrıca, bu çalışma ışığında orman yönetimi ve ağaçlandırma çalışmalarında uygun kararların alınabilmesi açısından orman yöneticilerine önemli çıkarımlar sağlayacaktır

Keywords

Iklim, Ekolojik Faktörler, Çevresel Faktörler, Yetişme Ortamı Verim Gücü, Yağış

Effects of Ecological Factors on Forest Site Productivity in Crimean Pine Stands of the Kastamonu Region

Abstract

Aim of study: In this study, relationships between ecological factors including topography, climate, soil properties and site productivity of Crimean pine (Pinus nigra J.F. Arnold subsp. pallasiana (Lamb.) Holmboe) stands in the Kastamonu region of Türkiye were investigated.
Area of study: The study was conducted in Crimean pine stands of Kastamonu region, northwestern Türkiye.
Material and method: A total of thirty-six temporary sample plots inventoried from naturally regenerated pure Crimean pine stands were used in this study.
Main results: Our results indicated that climatic factors including precipitation and temperature had the greatest relationship between site productivity. Since climatic factors showed significant differences between the low and high site index classes, they can be reliably used for site classification for this species in the region. Besides, Principal Component Analysis (PCA) showed a strong separation between the poor and high productive sites, considering these variables. The PCA explained 68.7% of the total variation, with PC1 explaining 37.2% and PC2 explaining 31.5% of the data.
Research highlights: Crimean pine showed an abstemious characteristic in terms of soil requirements. However, it was also concluded that it has higher growth potential with higher precipitation. The results of this study shows not only an optimal site conditions of Crimean pine, but also additional insights for ecologists and forest managers in determining the decision making for forest management and afforestation applications.

Keywords

Climate, Ecological Factors, Environmental Factors, Site Index, Precipitation

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