Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı

Sulfur Accumulation Of Maritime Pine (Pinus Pinaster Ait.) Needles On Kefken/İzmit Section In Kocaeli Peninsula

Depending on the rapidly growing population, the demand to wood material increases day by day in our country. Plantation studies has begun with fast growing native and exotic tree species by the end of 1960s to meet wood material requirements. In Izmit and Kefken region in Kocaeli Peninsula, plantations were done by using native species of Pinus nigra, Pinus brutia and exotic tree species of Pinus pinaster and Pinus radiata.

This study was carried out in the plantation areas of maritime pines on Kefken/Izmit section in Kocaeli Peninsula. On this section, from 47 sample plots of 5 different areas the sample needles were taken. On this samples the effects of air pollution on plantation areas were researched by sulfur analysis.

The samples were dried at 65⁰C and ground. The sulfur values of these samples were determined by the barium sulphate and gravimetric sulfur determination method which was explained in detail in the third section of this study. In this way, the harmful effects of air pollution on maritime pines and drying of trees as a result of these effects were tried to determine.

In the sample areas of Izmit and Kefken sections, especially in Izmit air pollution is on high levels. Industrial plantations and the air pollution coming from Karadeniz are effective on this level of Izmit area. Effective and wide spreading air pollution is originated from SO₂ gas, especially. CO₂ absorption in pine needles and taking SO₂ gas from air in the respiration process, causes H₂SO₄ forming in the needle and decrease in wood production. This situation were explained in the section of discussion and result, in detail.

As a result of this study, in maritime pines sulfur amounts were found out as on harmful levels. But, harmful effects of SO₂ in the arid region of South were determined higher than the humid region of North. In addition to this, harmful insects population increased in the South and damage of both SO₂ and insects affected the health of the maritime pine trees and dried them.

KARACA Nihan ,

Danışman : Prof.Dr. Asuman EFE

Anabilim Dalı : Orman mühendisliği

Programı : Orman Botaniği

Mezuniyet Yılı : 2006

Tez Savunma Jürisi : Prof.Dr.Asuman EFE (Danışman)

Prof.Dr.Hüseyin DİRİK

Prof.Dr.Gülen ÖZALP

Prof.Dr.Adnan UZUN

Doç. Dr. Ünal Akkemik