Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı

Research On The Natural Generatıon Samples Of Scotch Pıne (Pınus Sylvestrıs L.) Stands Bolu-Aladag

In this study natural generation samples were studied in the Alabarda district of Bolu-Aladag State Forest. The study focuses on vitality status, growth properties of the generations which naturally occured under forest canopy cover. The study examines the relations among characteristics of stand structure, light and growth alongside survival ability and growth energy of the indivudial generations under forest canopy.

As a result of this study following results were obtained from natural generation samples of Scots pine:

Natural generation samples in the stands occur mainly in the “loose forest canopy” and “lightly covered forest canopy” parts, where canopy cover grades are lower and in these areas natural generation groups typically occur in the shape of cone.

Growth cessation in the natural generation samples is mostly due to insufficient light condition under Scots pine forest and it shows itself in the decrease of vertical growth.

Generation individuals which remained under forest cover for many years continue their vitality in spite of canopy cover.

It can be determined that with the decrease of canopy cover and in relation to this decreasing root competition, individuals which show a slow growth in the conically generation groups, can clearly increase their height and diameter increment.

As a main result of this study; it is demonstrated that individual generations, which have stayed under forest canopy for many years (10-18 years), have not lost their growth energy and with the decrease of canopy cover they are able to continue their development normally in a vital way again.

Benefitting possibilities from individuals in the conical generation samples, “close-to-nature silviculture” applications, possibilities to use most of the features, that are existing in natural forests, in the managed forests as much as possible and possibilities of using knowledges, found from naturally occured generations, in the regeneration works in high mountain forest areas were discussed in this study in which development differences and vitalities of the individuals in the natural generation samples were researched in detail.

KURTGÖZ Yunus ,

Danışman :Yrd. Doç. Dr. Ahmet HAKYEMEZ

Anabilim Dalı :Orman Mühendisliği

Programı (Varsa) :Orman Entomolojisi ve Koruma

Mezuniyet Yılı :2007

Tez Savunma Jürisi :Yrd. Doç. Dr. Ahmet HAKYEMEZ (Danışman)

Prof. Dr. Erdal SELMİ

Prof. Dr. Tamer ÖYMEN

Prof. Dr. Ferhat BOZKUŞ

Prof. Dr. Adnan UZUN