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Article

A System Dynamics Model Examining Alternative Wildfire Response Policies

1
Rocky Mountain Research Station, USDA Forest Service, Fort Collins, CO 80526, USA
2
Warner College of Natural Resources, Colorado State University, Fort Collins, CO 80523, USA
3
College of Forestry, Oregon State University, Corvallis, OR 97331, USA
4
Rocky Mountain Research Station, USDA Forest Service, Missoula, MT× 59801, USA
*
Author to whom correspondence should be addressed.
Received: 29 April 2019 / Revised: 7 August 2019 / Accepted: 27 September 2019 / Published: 4 October 2019
(This article belongs to the Special Issue System Dynamics: Insights and Policy Innovation)
In this paper, we develop a systems dynamics model of a coupled human and natural fire-prone system to evaluate changes in wildfire response policy. A primary motivation is exploring the implications of expanding the pace and scale of using wildfires as a forest restoration tool. We implement a model of a forested system composed of multiple successional classes, each with different structural characteristics and propensities for burning at high severity. We then simulate a range of alternative wildfire response policies, which are defined as the combination of a target burn rate (or inversely, the mean fire return interval) and a predefined transition period to reach the target return interval. We quantify time paths of forest successional stage distributions, burn severity, and ecological departure, and use departure thresholds to calculate how long it would take various policies to restore forest conditions. Furthermore, we explore policy resistance where excessive rates of high burn severity in the policy transition period lead to a reversion to fire exclusion policies. Establishing higher burn rate targets shifted vegetation structural and successional classes towards reference conditions and suggests that it may be possible to expand the application of wildfires as a restoration tool. The results also suggest that managers may be best served by adopting strategies that define aggressive burn rate targets but by implementing policy changes slowly over time. View Full-Text
Keywords: forest dynamics; disturbance; modeling; departure; restoration forest dynamics; disturbance; modeling; departure; restoration
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MDPI and ACS Style

Thompson, M.P.; Wei, Y.; Dunn, C.J.; O’Connor, C.D. A System Dynamics Model Examining Alternative Wildfire Response Policies. Systems 2019, 7, 49. https://0-doi-org.brum.beds.ac.uk/10.3390/systems7040049

AMA Style

Thompson MP, Wei Y, Dunn CJ, O’Connor CD. A System Dynamics Model Examining Alternative Wildfire Response Policies. Systems. 2019; 7(4):49. https://0-doi-org.brum.beds.ac.uk/10.3390/systems7040049

Chicago/Turabian Style

Thompson, Matthew P., Yu Wei, Christopher J. Dunn, and Christopher D. O’Connor 2019. "A System Dynamics Model Examining Alternative Wildfire Response Policies" Systems 7, no. 4: 49. https://0-doi-org.brum.beds.ac.uk/10.3390/systems7040049

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