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5 Methods for Evaluating Scenarios: Reconciling Quantities and Values
Pages 35-46

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From page 35...
... It takes account of current societal decision-making demands and is an expansion of natural resource assessments that include ecosystem services. The current USGS resource assessments, he said, can be broadened by developing a Decision Support Tool (DST)
From page 36...
... The group decided that the ecological assessment units defined would have geographic boundary, surface and subsurface components, and clearly identifiable and measurable ecosystem services. Habitat fragmentation, water quality, and elk migration were chosen.
From page 37...
... To do this, however, there are still data for inputs and issues with model compatibility that need to be solved. Several data gaps exist, including natural resource stocks, engineering economics for resource extraction, biophysical and ecological data for ecosystem services stocks, market prices, regulations, and nonmarket values.
From page 38...
... An MRA, she said, consists of three main components: integrated information on the current status of multiple natural resources (including ecosystem services) , models describing the interrelationships among collocated natural resources, and analyses evaluating the impacts and tradeoffs to the natural resources in biophysical and socioeconomic terms (Figure 5-2)
From page 39...
... Dr. Jenni described effective approaches for measuring and comparing v ­ alues provided by multiple resources within a landscape-based approach.
From page 40...
... Also, she said, it is important to document the whole decision analysis process, which will also limit the over-modeling that often occurs. Robert Johnston, director and research professor of the George Perkins Marsh Institute at Clark University, discussed methodologies for linking quantities and values, which he described as very challenging to do empirically even if simple to do conceptually with existing frameworks.
From page 41...
... One advantage of economic valuation is that it provides a formal quantitative approach and enables internally consistent and generalizable results. Expressing outcomes in dollar values allows them to be more easily compared in a meaningful way and provides a consistent metric to measure changes in social welfare; however, the evaluation of tradeoffs does not have to be expressed as dollar values but can be other units of measure.
From page 42...
... 42 INTEGRATING LANDSCAPE APPROACHES INTO NATURAL RESOURCE MANAGEMENT FIGURE 5-3  An assessment of management options to address eroding beaches in Kitts Hummock, Delaware. SOURCE: Robert Johnston, Presentation, National Academies of Sciences, Engineering, and Medicine Workshop, June 2, 2015, Washington, D.C.
From page 43...
... The diagram does not, however, contain ecosystem service values explicitly. Ecosystem service values are not often a useful distinction from other types of values.
From page 44...
... This links biophysical changes to primary changes in social welfare. The panel was asked a question about the user interface of decision support tools and modeling, and if there is a way to make them more interactive with nonmodelers.
From page 45...
... They have not yet been able to address constraints at such resolution as specific regulations that would protect a wilderness area. Another participant commented there are two conflicting goals -- the development of a sophisticated decision support tool that aggregates a tremendous amount of information for a decision maker but that is also simple enough for a nontechnical user to manipulate and understand.
From page 46...
... He said that one of the reasons for developing complex models is due to a relatively complex set of ­ ssues when i conducting a multi-resource analysis with multiple stakeholders over a large landscape. The process begins by moving from a single resource analysis to trying to understand what happens to other resources in the same region, and then ultimately moving to a valuation step.


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