Elsevier

Ecological Modelling

Volume 3, Issue 2, May 1977, Pages 133-148
Ecological Modelling

Graphical evaluation of environmental management options: Examples from a forest-insect pest system

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Abstract

A graphical technique is demonstrated which, when combined with any resource simulation model, permits the resource manager to explore the effects of different management options. Also, this technique (nomogram or response surface) permits derivation of “optimal solutions” given particular objectives. Examples of the methodology are given for the spruce budworm—forest system in eastern Canada. Effects of several kinds of uncertainties are dicussed, including uncertainties in model assumptions, management precision, future objectives and system evolution. The graphical nature of nomograms helps managers and analysts to grasp more easily the complicated behavior of ecological systems models. Finally, the role of computer models in decision-making is discussed.

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