Studying altitude influence on Uludağ fir soil macro nutrients in Kastamonu, Turkey

Soil macronutrients (P, K, Ca+2 and Mg+2) showed significant differences between the altitudes (P<0.05). Mean soil macronutrients; Mg, P K concentrations were significantly higher at altitude than those lower altitude, whereas mean concentration was altitude. micronutrients, Mn+2, Na, Zn+2, Cl_, Al_ Co also In conclusion, our results indicate that topographical factors, slope aspect in this present study, can affect properties organic carbon total nitrogen content. Therefore, factors should be considered future studies.