Student:	Ali Cem AYDIN
Supervisor:	Prof.Dr. Hakkı YAVUZ
Department:	Orman Mühendisliği
Institution:	Graduate School of Natural and Applied Sciences
University:	Karadeniz Technical University, Turkey

Title of the Thesis:	Determining the Site Index of Cedar Forest Stands by Using Polymorphic Method in
Level:	M.Sc.
Acceptance Date:	4/2/2008
Number of Pages:	53
Registration Number:	i1893

Summary:

In this study, it was aimed to arrange the site index table using polymorphic method

for cedar stands in Antalya province. For this aim, sample trees -old and exposed to less

pressure possibly - have been taken from different sites and stem analysis have been made

on these trees. Bound to the data obtained from the stem analysis, the height of each tree

was calculated by ISSA method and height-age curves were determined for each sampling

tree by means of Chapman-Richards function. In order to obtain all height-age curves from

just one model, the relations between coefficients of height-age curves and site index have

been determined, finally a site index table with polymorphic method has been arranged and

The height-age curves composed by Chapman-Richards function for each tree,

showed high level statistical adaptation and were found statistical relations between site

index and b0 and b2 coefficients. It is concluded that there are no differences for 10, 15 and

20 m index values but there are some differences for 25 and 30 m index values when it is

statistically compared with the Evcimen (1963)’s site index table composed by anamorphic

method for the same tree species. Finally some recommendations and discussions have

been made in order to compose more reliable site index tables.

Key Words: Lebanon Cedar, Site Index Table, Stem Analysis, Growth Function,

Polymorphic Method.