Spatial optimization program used to assign strategic targets to tactical spatial units.
RELM
Regional Ecosystems and Land Management Decision Support System (RELMdss) is a Linear Programming (LP) based optimization program which proportions forest-wide, strategic planning solutions to tactical sub-units of the forest. These sub-units are often watersheds or landscapes. The strategic solution usually comes from Spectrum, and is rarely geographically specific, which may result in implementation problems. RELM is used to proportion the strategic solution and test the feasibility of the forest-wide solution on a geographically specific basis. Cumulative effects and connected actions can be analyzed not only within a sub-unit, but between sub-units. This approach allows planners and decision makers to evaluate how alternative management scenarios may affect neighboring units. Depending on the environmental effect, analysis can occur at different scales.
ArcView GIS/RELMdss: Integration of a Mathematical Programming Model Within ArcView GIS for a Spatial/Temporal Decision Support System [http://gis.esri.com/library/userconf/proc99/proceed/abstracts/a528.htm]
http://www.fs.fed.us/institute/planning_center/plan_relm.html (No Longer Available)
Alternative Evaluation
Boise-Payette-Sawtooth National Forest Plan
Decision Modeling
Management Process Modeling
Socioeconomic System Modeling
Vegetation Management
Watershed Analysis
Alternative Generation
Rank Alternatives
Visualization
Linear Programming
Optimization Methods
Trade-Off Analysis
Visualization
Biophysical Process
Economic Process
User Defined Process
All (User Defined Analysis Extent)
Patch Extent
Subregional Extent
All (User Defined Unit Of Observation)
true
true
Windows 95/98
C-Whiz Linear Programming (LP) Software
Conversion programs to link Arc-Info and Spectrum to RELMdss exist.
true
Free
Regularly Distributed
USDA Forest Service - Region 5
National Commission On Science For Sustainable Forestry
Klaus Barber
User needs to define the problems. One must describe the problem in terms of Targets, Objectives, Thresholds (constraints), State Variables, and Desired Future Conditions at the various scales of hierarchy that one wishes to analyze.“SCENARIO” SOLUTIONMINIMUM AREA OPTIONEQUIVALENT RISK OPTION
9/11/2009
Decision Model
Evaluative Models
Simulation Models
Spatial Decision Support Systems
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