Development of tree volume equations for black pine stands in Kütahya Tavşanlı region

The accurate estimation of tree volume is crucial for effective forest management and planning. This study aims to develop specific tree volume equations for the black pine (Pinus nigra Arnold.subsp. pallasiana (Lamb.) Holmboe) stands in the Kütahya Tavşanlı region. Various volume functions available in the literature were tested to determine the best model for this region. Data was collected from sample trees in the region, and these was used to derive volume equations tailored to the local conditions. The equations were evaluated based on statistical measures such as RMSE (Root Mean Square Error), AIC (Akaike Information Criterion), and other relevant indices. The results indicate that the developed volume equations provide accurate and reliable estimates of tree volume for black pine stands in the studied area. These equations can be utilized for forest inventory, yield estimation, and management planning, contributing to the sustainable management of black pine forests.