Marc E. McDill

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Adjacency constraints in harvest scheduling models prevent the harvest of adjacent management units within a given time period. Two mixed integer linear programming (MILP) harvest scheduling formulations are presented that include adjacency constraints, yet allow the simultaneous harvest of groups of contiguous management units whose combined areas are less(More)
A display was devised for the purpose of studying the information afforded by kinetic optical occlusion (the progressive erasure and replacement of static elements within a display). A microcomputer generated a series of equally spaced light bars on a dark background. The first bar on the left was suddenly blanked and, after a pause of variable duration (an(More)
Determining the life-cycle inventory (LCI) and impact of forest harvest, regeneration, and growth is necessary in conducting a life-cycle assessment of wood products. This publication provides quantitative assessments of the economic and environmental impacts of forest management activities covering portions of the Inland Northwest (INW), including Montana,(More)
Spatially-explicit harvest scheduling models optimize the spatiotemporal layout of forest management actions to best meet management objectives such as profit maximization, even flow of products, or wildlife habitat preservation while satisfying a variety of constraints. This investigation focuses on modeling maximum harvest opening size restrictions whose(More)
Cork oak (Quercus suber L.) and holm oak (Quercus rotundifolia) ecosystems are characteristic of Mediterranean forestry in Portugal. Even though cork is the most valuable product, these ecosystems provide multiple products and services. Assessing trade-offs between multiple goals is thus critical for the effectiveness of oak ecosystem management planning.(More)
Optimal parameter settings to improve the efficiency of solving harvest scheduling models with adjacency constraints were examined using Ilog's Cplex R 11.2 optimizer tuning tool. A total of 160 randomly generated hypothetical forests were created with either 50 or 100 stands and four age-class distributions. Mixed integer programming problems were(More)
Acknowledgements This research project would not have been possible without the financial support provided by the USDA Forest Service Forest Products Laboratory (04-CA-11111137-094), CORRIMs contributing university members, and the contributions of many companies. Special recognition is extended to Dr. Jingxin Wang, and Dr. Joe McNeel, West Virginia(More)
Thirty-five presentations were given at the Symposium on topics ranging from biofuels harvesting logistics to efficiently monitoring the impacts of climate change by speakers fromposium continues a long tradition of workshops sponsored by the Society of American Forester's E-4 Working Group that started with a meeting in Athens, Georgia in 1975. While most(More)