This study was carried out to examine the relationships between productivity of taurus cedar (Cedrus libani A. Rich.) and some environmental factors in afforestation areas located in Eskişehir, Afyonkarahisar and Ankara provinces. Sampling studies were performed on 55 sample plots that differ in aspect, altitude, slope degree, slope position and stand growth. A tree representing top stand height in each area was cut from each stand and soil samples were taken from the horizons. Some physical and chemical properties of the soil samples were analyzed. The climate data was obtained from the closest meteorological station to determine the relationships between productivity of Taurus cedar and climatic factors. Relations between top height values of trees in stands and edaphic, climatic and physiographic site factors were analyzed using correlation, stepwise regression analysis and regression tree methods. Latitude and slope position as physiographic factors; the average high temperature potential evapotranspiration, water surplus, the average temperature of the coldest month, the average temperature of the hottest month and the average temperature of four months in the summer as climatic factors; silt ratio as edaphic factors were statistically found as the most significant factors on the variation of height growth. The height growth of the species was modelled using stepwise regression analysis and regression tree method. As a result of these methods, the best prediction model was found to be the regression tree method with a ratio of 65.6%.
: March 29, 2017
|APA||Karataş, R , Özkan, K . (2017). Toros sediri (Cedrus libani A. Rich.) ağaçlandırmalarının gelişimi ile yetişme ortamı özellikleri arasındaki ilişkiler . Ormancılık Araştırma Dergisi , 4 (1) , 12-21 . DOI: 10.17568/ogmoad.302425|