Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı 2

Wood Productıon Optımızatıon Of Oak Coppıces Convertıng To Hıgh Forests: The Case Of Sergen Forest Dıstrıct
The traditional plan-making process still continues in the forests of our country but the forest management plans are now regulated by decision-making techniques. Nowadays, the objectives and conservation goals have changed and diversified through ecosystem-based functional planning (ETFOP) approach and multiple criteria planning have been dominated. That’s way optimization of production is provided with decision-making techniques.
Scientific researches and applications for wood production have continued since the 17th century in the world. Planning process has been focused on timber production in Turkey. However, in these days, wood production has become one of the functions of the forest through the adoption of a functional approach to planning. The idea that wood production is one of the most important forest resources, it hasn't changed although functional approach in our country and world and one of the most challenging problems of wood production has been the optimization of production. In this study, İstanbul Regional Directorate of Forestry, Vize Department of Forestry, Sergen Planning Unit was chosen as sample. Wood Production is tried to be maximized at the working groups context considering adjacency relations of stands determined purposes and restrictions during conversion of coppice forests to high forest of oak forest occurred coppice originated forest and managed as coppice until 2006. Thus harvest scheduling was tried to be established according to various strategies in the study area. Mixed Integer Programming was used as the planning technique. Amount of volume of maintenance cuttings were taken as the decision variable in the mathematical modelling and an original model is developed for multi-objective planning procedure. ArcMap software in obtaining of some spatial data and GAMS software for the solution of mathematical model were used. Five sample planning strategies were constituted and model outputs were evaluated according to these strategies. Generally, in all strategies is observed wood production increases in along the planning horizon. Maximum wood production occurs when all constraints are loosened. By this study a sample to an approach to the modelling in the conversion of coppice oak management planning is presented.