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Issue 4 (2) 2005 pp. 123-133

Mieczysław Turski

FURTHER RESEARCH ON CHANGES OF TRUE FORM FACTOR VALUES OF OAKS, THEIR VARIABILITY AND RELATIONS TO SOME TREE FEATURES WITH THE AGE OF TREES

Keywords: true form factor, changes, oak
Abstract: The paper presents results of research on changes of the variation of chosen true form factors of oak stems with age. There were 28 sample trees chosen by Darudt’s scheme in 80 years old oak stand. On these trees, when fallen down, the full stem analysis in five year periods were applied. The results of the analysis were used for calculating following form factors: fL/15, fL/10, fL/9, fL/8, fL/7, fL/6, fL/5, fL/4, f3/10L, fL/3, f4/10L and fL/2 under bark. The value of the b.h. form factor was also calculated for each stem for comparative purpose. The less variable form factors in examined stands were fL/4, fL/3 and fL/5. Average values of their coefficients of variation were, correspondingly 9.01%, 9.08% and 9.09%. The highest variation was found for fL/2 – 14,84% on average. The correlation between investigated form factors and d.b.h. under bark, tree height so as slenderness quotient have also been analysed. In most cases, the correlation between form factors and tree height, calculated in different periods of life, is weak, often statistically insignificant. Stronger correlation appears in later period of tree life (over 40 years) between true form factors fL/7, fL/6, fL/5, fL/4, f3/10L, fL/3, f4/10L and d.b.h. under bark and slenderness quotient.
pub/.pdf Full text available in english in Adobe Acrobat format:
http://www.forestry.actapol.net/pub/10_2_2005.pdf

For citation:

MLA Turski, Mieczysław. "FURTHER RESEARCH ON CHANGES OF TRUE FORM FACTOR VALUES OF OAKS, THEIR VARIABILITY AND RELATIONS TO SOME TREE FEATURES WITH THE AGE OF TREES." Acta Sci.Pol. Silv. 4.2 (2005): 123-133.
APA Mieczysław Turski (2005). FURTHER RESEARCH ON CHANGES OF TRUE FORM FACTOR VALUES OF OAKS, THEIR VARIABILITY AND RELATIONS TO SOME TREE FEATURES WITH THE AGE OF TREES. Acta Sci.Pol. Silv. 4 (2), 123-133
ISO 690 TURSKI, Mieczysław. FURTHER RESEARCH ON CHANGES OF TRUE FORM FACTOR VALUES OF OAKS, THEIR VARIABILITY AND RELATIONS TO SOME TREE FEATURES WITH THE AGE OF TREES. Acta Sci.Pol. Silv., 2005, 4.2: 123-133.
Streszczenie w języku polskim:
http://www.forestry.actapol.net/tom4/zeszyt2/streszczenie-10.html