Open AccessMODELING HARVEST SCHEDULING IN MULTIFUNCTIONAL PLANNING OF FORESTS FOR LONGTERM WATER YIELD OPTIMIZATION
Author(s) -
ZENGIN HAYATI,
ASAN ÜNAL,
DESTAN SINAN,
ENGIN ÜNAL MURAT,
YEŞIL AHMET,
BETTINGER PETE,
DEĞERMENCI AHMET SALIH
Publication year - 2015
Publication title -
natural resource modeling
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.28
H-Index - 32
eISSN - 1939-7445
pISSN - 0890-8575
DOI - 10.1111/nrm.12057
Subject(s) - scheduling (production processes) , integer programming , production (economics) , computer science , production planning , environmental science , forest management , yield (engineering) , operations research , operations management , agricultural engineering , mathematics , mathematical optimization , agroforestry , engineering , economics , macroeconomics , materials science , metallurgy
In this study, wood production and hydrologic functions of forests were accommodated within a planning procedure for separate working circles (areas dedicated to certain forest functions) that were delineated according to an Ecosystem‐Based Functional Planning approach. Mixed integer goal programming was used as the optimization technique. The timing and scheduling of a maintenance cutting (partial harvest) was the decision variable in the modeling effort, and an original formulation was developed as a multiobjective planning procedure. Four sample planning strategies were developed and model outputs were evaluated according to these strategies. Spatial characteristics of stands were considered, and used to prohibit the regeneration of adjacent stands during the same time period. Because of the positive relationship between qualified water production and standing timber volume in the forest, the model attempts to maximize qualified water production levels by increasing standing volume stocks in the forest through the delay of regeneration activities.