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Title: Climate-FVS Version 2: Content, users guide, applications, and behavior

Author: Crookston, Nicholas L.;

Date: 2014

Source: Gen. Tech. Rep. RMRS-GTR-319. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 38 p.

Publication Series: General Technical Report (GTR)

Description: Climate change in the 21st Century is projected to cause widespread changes in forest ecosystems. Climate-FVS is a modification to the Forest Vegetation Simulator designed to take climate change into account when predicting forest dynamics at decadal to century time scales. Individual tree climate viability scores measure the likelihood that the climate at a given location and at a given point in time is consistent with the climate recorded for species’ contemporary distribution. These viability scores are input into Climate-FVS. A web-based service is available for providing this input for climate predictions generated by down scaling general circulation model (GCM) outputs run using several models and scenarios from the IPCC third (IPCC 2000) and fifth assessments (IPCC 2013). Climate-FVS contains components that modify mortality and growth rates, plus rules for establishing new trees. Commands are presented that control the model. These commands enable the users to explore the model’s sensitivity to model components and parameters, to include pertinent information unknown to the model, and use the model to simulate management alternatives. Model outputs are very sensitive to the mortality component, are moderately sensitive to growth rate modifications, and are sensitive to maximum density adjustment only when a stand’s maximum density is being approached. The intended model uses are to provide insights into future forest dynamics that are not otherwise evident, to provide model outputs that are relevant to forest managers, to provide a consistent way to compare management alternatives, and to do so using defensible methods.

Keywords: climate change, Climate-FVS, Forest Vegetation Simulator

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Crookston, Nicholas L. 2014. Climate-FVS Version 2: Content, users guide, applications, and behavior. Gen. Tech. Rep. RMRS-GTR-319. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 38 p.


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