Effects of Pruning on Diameter and Height Growth of Pinus nigra Arnold subsp. pallasina Plantations in Turkey
Effects of Pruning on Diameter and Height Growth of Pinus nigra Arnold subsp. pallasina Plantations in Turkey
Fatih Tonguc, Sinan Guner
Pruning is a costly silvicultural operation and allows
the production of high value timber. Effect of pruning on black pine and
especially on Anatolian black pine (Pinus nigra Arnold subsp.
pallasina) is not well known. The objective of the study was to evaluate
pruning effects on diameter and height growth of Anatolian black pine.
Pruned and the control treatments were carried out using 20 year old
black pine plantation in Çorum providence of Turkey. Three pruning
treatments were applied in 2004, 2009 and 2016 and diameter and height
growths of trees were measured. Each pruning was done from the bottom to
include one third of the crown. At the beginning of the study (first
pruning) and after 5 years of the first pruning no difference was
observed for DBH and height growth. However, diameter and height growth
became important after 12 years of pruning between pruned and control
stands. Results show that pruning could increase diameter growth and
height of Anatolian black pine stands. To better understand, further
detailed studies must be carried out investigating site effects, plant
density and environmental variations.
10.22161/ijeab/2.1.32
http://ijeab.com/upload_document/issue_files/32%20IJEAB-JAN-2017-38-Effects%20of%20Pruning%20on%20Diameter%20and%20Height%20Growth%20of%20Pinus%20nigra%20Arnold%20subsp.pdf
http://ijeab.com/submit-paper/
Fatih Tonguc, Sinan Guner
Pruning is a costly silvicultural operation and allows
the production of high value timber. Effect of pruning on black pine and
especially on Anatolian black pine (Pinus nigra Arnold subsp.
pallasina) is not well known. The objective of the study was to evaluate
pruning effects on diameter and height growth of Anatolian black pine.
Pruned and the control treatments were carried out using 20 year old
black pine plantation in Çorum providence of Turkey. Three pruning
treatments were applied in 2004, 2009 and 2016 and diameter and height
growths of trees were measured. Each pruning was done from the bottom to
include one third of the crown. At the beginning of the study (first
pruning) and after 5 years of the first pruning no difference was
observed for DBH and height growth. However, diameter and height growth
became important after 12 years of pruning between pruned and control
stands. Results show that pruning could increase diameter growth and
height of Anatolian black pine stands. To better understand, further
detailed studies must be carried out investigating site effects, plant
density and environmental variations.
10.22161/ijeab/2.1.32
http://ijeab.com/upload_document/issue_files/32%20IJEAB-JAN-2017-38-Effects%20of%20Pruning%20on%20Diameter%20and%20Height%20Growth%20of%20Pinus%20nigra%20Arnold%20subsp.pdf
http://ijeab.com/submit-paper/
Comments
Post a Comment