Özet:

This study is the pineapple (Pinus nigra subsp. Pallasina) is made for the purpose of determining the nutrient stocks in the trees. Examples were made in a total of 46 areas in Eskişehir, Afyonkarahisar, Kastamonu, Çanakkale, Fiskesir and Kütahya, which differ in terms of productivity class, development age and coverage. The research project ESK-10(6303) used samples of land, dead cover, living cover and tree components. In the laboratory, samples of soil and plants taken from the soil were analyzed by N, P, K, Ca, Mg, S, Na, Fe, Zn, Mn and Cu. The variation of the nutrient intensities of the different components of the ecosystem and the nutrient stocks according to the types of shells was assessed by variance analysis. The nutrient intensity of the trees components has decreased, generally depending on the age of the sheep. The intensity of N, P, K, Mg, S, Zn and Mn is found in the ibris, the intensity of Na and Fe is found in the dry branch, and the intensity of Ca is found at the highest level in the dry branch and cortex. The nutrient stocks in the trees have increased due to the age of development and the increase in coverage. Macro nutrient elements are most stored in the trees and crop. In the wooden areas, the soil constitutes the most important part of the nutrient stocks other than S and Fe. The sulphur stock was found at the highest levels in the dead cover in the cows (d1,3=20,0-35,9 cm) in the trees, while the fe stock was found at the highest levels in the dead cover in the cows (d1,3=8,0-19,9 cm). Because it is an important component of the Fe stool, it is necessary to pay attention to the protection of the dead cover. To reduce the loss of food to the minimum, it is necessary to take maximum care of leaving in the forest no economic value, dried branches, crop and roots.

Anahtar Kelimeler:

Özet:

This study was carried out to determine nutrient stocks in black pine  plantations. Samplings were done in 46 plots differing in yield class, development stages and canopy closure. N, P, K, Ca, Mg, S, Na, Fe, Zn, Mn and Cu analyses were performed in soil, forest floor, ground cover and tree component samples. Changes in nutrient concentrations (%, ppm) and stocks (kg/ha) data belonging to various ecosystem compartments were evaluated by using analysis of variance. Nutrient concentration in tree components decreased with stand age. The highest N, P, K, Mg, S, Zn and Mn concentrations were found in needle. The highest Na and Fe concentrations were measaured in dead branch while dead wood and bark included the highest Ca concentration. It was concluded that macro nutrients were notably stored in needle and bark. Whereas a substantial part of total nutrient stock were found in soil, except for S and Fe. S stock were found the highest in trees in development stage c (dbh=20.0-35.9 cm, 58,9 kg/ha) while Fe stock in forest floor in development stage b (dbh=8.0-19.9 cm) and c. Forest floor should be retained in the forest because of the fact that it is a notable resourse of Fe stock. Special care should be paid to leave the needles, dead branches, barks and roots following the logging to prevent loss of nutrients as much as possible.