Conversion Possibilities of Oak (Quercus sp. L.) Coppices into High Forests in Bartin, Turkey

Yıl 2009, Cilt: 11 Sayı: 15, 51 - 59, 24.04.2009

Ali Durkaya Birsen Durkaya Mehmet Çetin

Öz

In this study the possibilities of converting Bartın-region oak coppices (Quercus sp.L) into high forests. The

study has been performed in 50 sample plots and in addition to the data obtained from sample plots stem analysis

values of 30 oaks have been inspected. The development of volume and volume components of oak in single tree

has been determined by using stem analysis values of sample trees. The data obtained from sample plots have

been utilized to examine the development of stand volume and volume components with respect to time. By the

help of the amount of product types, product amounts from stand have been calculated according to various

rotation length alternatives. Present Net Values have been calculated by using income and expenditure data.

High forest and coppice investment alternatives have been compared in the aspect of wood production abilities

and discounted net values they provide and their effectiveness have been stated.

Anahtar Kelimeler

Oak, coppice, high forest, conversion

Bartın Yöresi Meşe (Quercus sp. L.) Baltalıklarının Koruya Dönüştürülme Olanaklarının Araştırılması

Öz

Bartın yöresindeki Meşe (Quercus sp.L.) baltalıklarının koruya dönüştürülebilme olanakları araştırılmıştır.

Çalışma 50 örnek alanda gerçekleştirilmiş ve örnek alanlardan toplanan verilere ilave olarak, 30 meşe ağacının

gövde analizi değerleri incelemeye tabi tutulmuştur. Meşenin tek ağaçta hacim ve hacim elemanlarının gelişimi,

alınan örnek ağaçların gövde analizi değerlerinden yararlanılarak saptanmıştır. Meşcere hacim ve hacim

elemanlarının zamana göre gelişimlerini incelemek amacıyla alınan örnek alanlardan elde edilen verilerden

yararlanılmıştır. Ürün çeşitlerinin miktarları yardımı ile meşcereden idare süresi sonuna kadar elde edilebilecek

ürün miktarları çeşitli idare süresi alternatiflerine göre hesaplanmıştır. Gelir ve gider verileri kullanılarak 100 yıl

idare süresi için iki farklı iskonto oranı ile Net Bugünkü Değerler hesaplanmıştır. Koru ve baltalık yatırım

alternatifleri toplam odun üretim gücü ve sağladıkları iskonto edilmiş net gelirler yönünden kıyaslanarak

etkinlikleri ortaya konulmuştur.

Anahtar Kelimeler

Meşe, baltalık, koru, dönüştürme

Kaynakça

• o Abdul Khalil, H.P.S., Issam, A.M,. Ahmad Shakri, M.T, Suriani, R. and Awang, A.Y. 2007. Conventional agro-composites from chemically modified fibres. Industrial Crops and Products 26, 315–323.
• o Boonstra, M.J., Pizzi, A., Zomers, F., Ohlmeyer, M. and Paul, W. 2006. The effects of a two stage heat treatment process on the properties of particleboard. Holz als Roh- und Werkstoff 64, 157–164. Chow, P., Harp, T., Meimban, R., Youngquist, J. A. and Rowell, R.M. 1996. Effects of Acetylation on the Dimensional Stability and Decay Resistance of Kenaf ( Hibiscus cannabinus L. ) Fiberboard. Document No: IRG/WP/ 96-40059.
• o Copur, Y., Guler, C., Akgul, M. and Tascıoglu, C. 2007. Some chemical properties of hazelnut husk and its suitability for particleboard production. Build. Environ., 42, 2568–2572.
• o Çolak, S., Çolakoğlu, G., Aydın, İ. and Kalaycıoğlu, H. 2007. Effects of steaming process on some properties of eucalyptus particleboard bonded with UF and MUF adhesives. Building and Environment 42, 304–309.
• o Gomez-Bueso, J., Westin, M., Torgilsson, R., Olesen, P.O. and Simonson, R. 1999. Composites made from
• acetylated lignocellulosic fibers of different origin. Holz als Roh- und Werkstoff 57, 433-438
• o Guntekin, E. and Karakus, B. 2008. Feasibility of using eggplant (Solanum melongena) stalks in the . production of experimental particleboard. Ind. Crop Prod., 27, 354-358.
• o Haygreen, J.G. and Bowyer, J.L. 1989. Forest Products and Wood Science: An Introduction. Iowa State Pres / Ames, Iowa, USA.
• o Lopattananon, N., Payae, Y. and Seadan, M. 2008. Influence of Fiber Modification on Interfacial Adhesion and Mechanical Properties of Pineapple Leaf Fiber-Epoxy Composites. Journal of Applied Polymer Science 110, 433-443.
• o Ndazi, B., Tesha, J.V. and Nisanda E.T.N. 2006. Some opportunities and challenges of producing bio- composites from non-wood residues. J. Mater. Sci.,41, 6984–6990.
• o Ntalos, G.A. and Grigoriou, A.H. 2002. Characterization and utilization of vine prunings as a wood substitute for particleboard production. Ind. Crops Prod., 16, 59–68.
• o Pan, M., Lian, H. and Zhou, D. 2007. Chemical characteristics of straw fiber and properties of straw fiberboard with different pretreatments. Frontier of Forestry in China 2(2), 238-240. TS-EN 310: Wood based panels—determination of modulus elasticity in bending and of bending strength (1999)
• o TS-EN 317: Particleboards and fibreboards—determination of swelling in thickness after immersion in water (1999)
• o TS-EN 319: Particleboards and fibreboards—determination of tensile strength perpendicular to the plane of the board (1999)
• o Var, A.A., Yıldız, Ü.C. ve Kalaycıoğlu, H. 2002. Çeşitli Emprenye Maddelerinin Yongalevhanın Mekanik Özelliklerine Etkileri. SDÜ Orman Fakültesi Dergisi, 1, 19-38.
• o Wang, F. and Yu, J.1993. A Method to Improve Dimensional Stability of PF - Particleboard. J. Northeast For. Univ. Vol. 4, No. 2, Nov. 1993. Zaidon, A., Norhairul Nizam, A.M., Mohd Nor, M.Y., Abood, F., Paridah, M.T., Nor Yuziah, M.Y. and Jalaluddin, H. 2007. Properties of Particleboard Made from Pretreated Particles of Rubberwood, EFB and Rubberwood-EFB Blend. Journal of Applied Science, vol. 7, Issue 8, p.1145-1151. Zhang, Y., Lu, X., Pizzi, A. and Delmotte, L. 2003. Wheat straw particleboard bonding improvements by enzyme pretreatment. Holz als Roh- und Werkstoff 61, 49–54.