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Revision as of 17:56, 1 February 2010
About HeurekaNew software for a multiple-use oriented forest managementThe Heureka Forestry Decision Support System (DSS) is a suite of freely available softwares developed and hosted by the Swedish University of Agricultural Sciences (SLU). The system covers the whole decision support process from data inventory to tools for selecting among plan alternatives with multi-criteria decision making techniques. The vision is that the system should contribute to a more profitable and environmentally friendly forestry. The utilities handled by the system is timber production, recreation values, bilogical diversity, and carbon storage. By including these in the same system, a holistic approach to forestry planning is made possible. The system is designed so that it will be relatively easy to add new functionality as new research results and models become available. The system covers the entire analytical chain, from forest inventory plots, through predictive modeling and optimization, to tools to rank alternatives. The system consists of the following applications:
ProjectionsProjections can be made for a large number of variables. These include for example
Every variable that can be projected can also be displayed in maps, charts and tables. ClimateForecast model can take account of how forests evolve under different climate scenarios. Nature ConservationIn order to analyze different strategies for conservation adjustment scheme can count on and propose provisions, prescribed ex-forestry, and the provision of retention trees. The results of a conservation strategy can be evaluated with a specific ArcGIS program that calculates the area suitable habitat for a number of selected species (see below). OptimizationThe Plan Wise is a built-in tools for formulating and solving LP and MIP problems (linear programming with or without heltalsvillkor). The system is very flexible and all variables that the system may make projections can be easily inserted into an optimization model. An optimization model is saved in a file, making it easy for users to share and distribute the models. The great flexibility, while the relatively high demands on the user who should have basic knowledge of optimization methods. Has not it may use existing optimization models. GISPlanWise and RegWise has an inbuilt license-free map viewer. Thematic maps is very easy to set up and display, and you can step through the planning period step by step to study how the forest develops over time. Import of GIS dataMaps can be imported as shape files in PlanStart. You can also import background images, such as orthophotos. Spatial relationshipsThe system provides a function to calculate adjacencies (shared border lengths and) between all polygon pairs, and a function to compute all feasible combinations of contiguous polygons that do not violate a user-defined opening size tolerance. The results of these calculations can be used in the optimization model for preventing too large clearings. Habitat ModelThe "Habitat Model" is a standalone GIS program that requires and ArcGIS license to run. It applies a kind of "Moving Window" algorithm which classifies suitable habitat for a species as a function of the state forest. "Habitat Model" can evaluate several plans, several time periods, and several different models in the same run. There are currently models for six species that have been selected as representative for different kind of habitat, and these species have different spatial requirements. Value for forest owner and decision makerExamples of benefits and added value that the software can provide for the decision maker (DM):
Examples of application: How to make a forest management plan with HeurekaThe elaboration of a plan for a forest holding consists of the following steps:
Availability and Support
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