Optimising Anatolian Black Pine (Pinus nigra) and Turkish Red Pine (Pinus brutia) Seedling Production in State Forest Nurseries of Turkey

Year 2017, Volume: 17 Issue: 2, 247 - 255, 28.09.2017

Altay Uğur Gül Ali Ömer Üçler , Cantürk Gümüş , Zafer Yücesan

https://doi.org/10.17475/kastorman.289124

Abstract

In this study, Turkish red pine and Anatolian black
pine seedling production at different ages were planned with linear programming
method and maximizing the seedling revenues was aimed. In this respect,
according to the assumptions used in the model, fields in various sizes such as
10000 m² area for one year old, 20000 m² for two years
old, 30000 m² for three years old and 40000 m² for four
and five years old seedling were separated in the nursery. On the other hand,
balanced seedling production in consecutive years and consideration of demand
increase or decrease on the seedling production at any ages were main goals.
For this, developed model was solved in three different formats deal with rapid
demand increase (RDI), slow demand increase (SDI) and demand decrease (DD)
scenarios. Obtained results showed that if there is a rapid increase in demand,
largest present value was 385310 $ and total produced seedling number was
905262. Realization of slow demand increase has led to reduction of 6658 $
(1.73%) in present value, and 17461 piece in produced seedling number. However,
reduction of demand decrease caused to occur present value 24989 $ (1.93%) and
produced seedling number 61479 piece (6.79%) less.

Keywords

Seedling, Nursery, Seedling production, Linear programming

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