Year 2012, Volume 13 , Issue 2, Pages 235 - 249 2012-07-02

The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce
Doğu Karadeniz Göknarı-Doğu Ladini Karışık Meşcerelerinde Çeşitli Yarışma Endekslerinin Tek Ağaçların Çap Artımındaki Etkilerinin İncelenmesi

Aydın KAHRİMAN [1] , Hakkı YAVUZ [2]


The aim of this study is to investigate statistical relations between each of 12 competition indices (both distance-dependent and distance-independent) and diameter growth of trees. Also we investigated the relations between each of 12 competition indices together with diameter at breast height and diameter growth. For that reason, six sampling plots (ranging from 1000 to 2000 m2 in size) were taken from in mixed stands of Caucasion fir and Oriental spruce located within the Forest Management Districts of Torul and Artvin. Our results from those sampling plots were in agreement with general growth models. Regression analysis between each of competition indexes and diameter growth resulted in coefficients of determination (R2) values ranging from 30 to 64%. The distance-dependent competition indices gave stronger correlations with diameter growth than the distance-independent competition indexes. Coefficients of determination were even higher when competition indexes and dbh were used together as independent variables (R2 = 0.31 - 0.82).
Bu çalışmada uzaklığa bağlı ve uzaklıktan bağımsız 12 yarışma endeksi ve bu yarışma endekslerine ek olarak göğüs çapları ile ağaçların yıllık çap artımı arasındaki istatistiksel ilişkilerin incelenmesi amaçlanmıştır. Bu amaçla, Torul ve Artvin Orman İşletme Müdürlüğü’ndeki Doğu Karadeniz Göknarı (Abies nordmanniana (Steven) Spach. subsp. nordmanniana) - Doğu Ladini (Picea orientalis (L.) Link.) değişikyaşlı karışık meşcerelerinden 1000 – 2000 m2 büyüklüğünde altı örnek alan alınmıştır. Elde edilen bulgular, bilinen genel büyüme yasaları ile uyumludur. Yarışma endeksleri ile çap artımları arasındaki bağıntıya ait regresyon denklemlerinin belirtme katsayıları (R2) % 30 – 64 arasında değişmektedir. Uzaklığa bağlı yarışma endeksleri, uzaklıktan bağımsız yarışma endekslerine göre çap artımı ile daha yüksek ilişki göstermiştir. Yarışma endeksi ile göğüs çapının birlikte açıklayıcı değişken olarak kullanılması ilişkinin gücünü artırmıştır (R2 = 0.31 - 0.82).
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Primary Language en
Journal Section Research Article
Authors

Author: Aydın KAHRİMAN

Author: Hakkı YAVUZ

Dates

Publication Date : July 2, 2012

Bibtex @ { artvinofd29858, journal = {Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi}, issn = {2146-1880}, eissn = {2146-698X}, address = {}, publisher = {Artvin Çoruh University}, year = {2012}, volume = {13}, pages = {235 - 249}, doi = {}, title = {The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce}, key = {cite}, author = {Kahri̇man, Aydın and Yavuz, Hakkı} }
APA Kahri̇man, A , Yavuz, H . (2012). The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce . Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi , 13 (2) , 235-249 . Retrieved from http://ofd.artvin.edu.tr/en/pub/issue/2265/29858
MLA Kahri̇man, A , Yavuz, H . "The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce" . Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi 13 (2012 ): 235-249 <http://ofd.artvin.edu.tr/en/pub/issue/2265/29858>
Chicago Kahri̇man, A , Yavuz, H . "The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce". Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi 13 (2012 ): 235-249
RIS TY - JOUR T1 - The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce AU - Aydın Kahri̇man , Hakkı Yavuz Y1 - 2012 PY - 2012 N1 - DO - T2 - Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi JF - Journal JO - JOR SP - 235 EP - 249 VL - 13 IS - 2 SN - 2146-1880-2146-698X M3 - UR - Y2 - 2020 ER -
EndNote %0 Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce %A Aydın Kahri̇man , Hakkı Yavuz %T The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce %D 2012 %J Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi %P 2146-1880-2146-698X %V 13 %N 2 %R %U
ISNAD Kahri̇man, Aydın , Yavuz, Hakkı . "The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce". Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi 13 / 2 (July 2012): 235-249 .
AMA Kahri̇man A , Yavuz H . The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce. AÇÜOFD. 2012; 13(2): 235-249.
Vancouver Kahri̇man A , Yavuz H . The Effect of Different Competition Indices on Diameter Growth of Individual Tree Growth in Mixed Stands of Caucasion fir and Oriental spruce. Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi. 2012; 13(2): 235-249.