Yeniköy Planlama Birimindeki Yıllık Defne (Laurus nobilis L.) Verimliliğinin Zamansal Değişiminin Belirlenmesi

Yıl 2019, Cilt: 21 Sayı: 1, 205 - 214, 15.04.2019

Derya Mumcu Küçüker Burak Sarı

https://doi.org/10.24011/barofd.458344

Öz

Türkiye’de odun dışı orman ürünlerinin
(ODOÜ) üretimi hasılat planları ile gerçekleştirilmektedir. Ancak planların
yetersiz teknik bilgi ve eksik konumsal veri içermesi ve alan verimliliğini kapsamaması
ODOÜ’nün sürdürülebilirliğini tehdit etmektedir. Bu çalışmanın amacı Yeniköy
planlama biriminde bulunan defne alanlarındaki verimliliğin zamansal
değişimini, 1972, 1994 ve 2013 orman amenajman planlarına ait meşcere
haritalarını ve 1992 ve 2003 yılına ait defne hasılat planlarını kullanarak
analiz etmektir. Arazi kullanım sınıfı, kapalılık ve gelişim çağı kullanılarak,
defnenin yayılış gösterdiği alanlarda Coğrafi Bilgi Sistemleri (CBS) yardımıyla
yapılan detaylı analizler sonucunda defne verimliliği belirlenmiştir. Elde
edilen sonuçlara göre, 1974-2013 yılları arasında defne yayılış alanları ve
verimliliği ciddi oranda artış göstermiştir. Bu planlama dönemleri arasındaki önemli
farklılığın temel sebebi kullanılan envanter tasarımı farklılığıdır. Uygun
örnekleme teknikleri ve CBS’nin kullanımıyla verimlilik tahminlerinin yapılması
daha gerçekçi ve hassas olabilir. ODOÜ’nün orman amenajman planlarına entegre
edilmesi ve sürdürülebilir üretimin sağlanması, ODOÜ’nün uygun değişkenlerle olan
sayısal ilişkilerinin anlaşılabilmesiyle mümkündür.

Anahtar Kelimeler

Odun dışı orman ürünleri, defne, zamansal değişim, verimlilik, hasılat planı

Determining Temporal Changes of Annual Productivity of Bay Laural (Laurus nobilis L.) in the Yenikoy Planning Unit

Öz

The production of non-wood forest products (NWFPs) is performed
with harvesting plans in Turkey. However, insufficient technical capacities,
lack of locational data and the absence of site productivity in the plans threat
the sustainability of NWFPs. The primary objective of this research is to
analyze temporal changes of annual site productivity of bay leave in the Yeniköy planning unit, Turkey. The cover type
maps, forest management plans (1972- 2003) and bay laurel harvest plans (1992-2013)
were used as primary data. Temporal changes of bay laurel productivity were
examined in terms of land use types, developing stages and canopy cover with a
detailed analysis on bay laurel areas with GIS. The results indicated that there
was a remarkable change for spatial distribution and
productivity of bay laurel from
1974 to 2013 due mainly to the differences of inventory design
causing underestimation of productivity. Appropriate sampling technique with
the use of GIS may provide more realistic and accurate estimation of the
productivity. The integration of
NWFPs into forest management plans and sustainable production are possible with
understanding the quantitative relations of NWFPs with the appropriate
variables.

Anahtar Kelimeler

L. nobilis, temporal change, Non-wood forest products, productivity, harvesting plan

Kaynakça

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