DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 5-6/2019 str. 39     <-- 39 -->        PDF

Some ecological parameters regarding the experimental plots are presented in Table 1. Furthermore, the sand ratios vary between 77.69 – 87.05% in Vakfıkebir and between 69.23 – 80.49 in Maçka-Yeşiltepe, and the drainage of the experimental plots is composed of well-drained soils. pH levels vary between 4.15 – 4.66 in Vakfıkebir and between 4.64 – 5.14 in Maçka-Yeşiltepe. The long-term data of close meteorological stations were used to determine the climatic characteristics of the regions where experimental plots were established. The data of Tonya meteorological station were used for Vakfıkebir sample plot while the data of Meryemana meteorological station were used for Yeşiltepe sample plot. Moreover, the Thornthwaite method was used to determine the climatic type of the experimental plots (Thorntwaite, 1948). The climatic type of Vakfıkebir sample plot was determined as the type which is very humid, at low temperature (Microthermal), with little or no water deficit, close to oceanic climate. The climatic type of Yeşiltepe sample plot was determined as the type which is semihumid, at medium temperature (Mesothermal), very strong and has water deficit in summer, close to continental climate (Yılmaz et al. 2016).
Methods
Metode
Experimental plots were chosen from young, untreated oriental beech plantation areas with normal closure. The experimental plots were established according to randomized plots experimental design. With the removal of 0% (