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mitigation measure in these circumstances. The aim of this paper was to assess the nutrient 28 content and phosphorus (P) adsorption capacity of the soil, and survival of planted saplings in

World-wide, forest managers have long recognised the benefits of using optimisation-based modelling techniques to improve decision-making. With no such systems in operation in Irish forestry, optimisation-based economic models were developed for harvest scheduling on a forest level within the context of a hierarchical approach. These new techniques were compared to those currently employed by Coillte Teoranta (the Irish Forestry Board). The development of the optimisation models involved the evaluation of: different management options strategies, optimisation techniques, model types and constraint strategies. Evaluation of the models was carried out in Clonbrock forest (294.8 ha), a typical Irish plantation forest, owned and managed by Coillte. The application of the selected model resulted in an increase in net present value (NPV) over the 5-year planning period of 14.2% compared to the NPV produced by Coillte's current process.

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