Mapping Canadian wildland fire interface areas
Lynn M. Johnston A C and Mike D. Flannigan B
+ Author Affiliations
- Author Affiliations
A Natural Resources Canada, 1219 Queen Street E, Sault Ste Marie, ON, P6A 2E5, Canada.
B University of Alberta, 751 General Services Building, University of Alberta, Edmonton, AB T6G 2H1, Canada.
C Corresponding author. Email: lynn.johnston@canada.ca
International Journal of Wildland Fire 27(1) 1-14 https://doi.org/10.1071/WF16221
Submitted: 15 December 2016 Accepted: 7 November 2017 Published: 22 December 2017
Journal Compilation © CSIRO 2018 Open Access CC BY-NC-ND
Abstract
Destruction of human-built structures occurs in the ‘wildland–urban interface’ (WUI) – where homes or other burnable community structures meet with or are interspersed within wildland fuels. To mitigate WUI fires, basic information such as the location of interface areas is required, but such information is not available in Canada. Therefore, in this study, we produced the first national map of WUI in Canada. We also extended the WUI concept to address potentially vulnerable industrial structures and infrastructure that are not traditionally part of the WUI, resulting in two additional maps: a ‘wildland–industrial interface’ map (i.e. the interface of wildland fuels and industrial structures, denoted here as WUI-Ind) and a ‘wildland–infrastructure interface’ map (i.e. the interface of wildland fuels and infrastructure such as roads and railways, WUI-Inf). All three interface types (WUI, WUI-Ind, WUI-Inf) were defined as areas of wildland fuels within a variable-width buffer (maximum distance: 2400 m) from potentially vulnerable structures or infrastructure. Canada has 32.3 million ha of WUI (3.8% of total national land area), 10.5 million ha of WUI-Ind (1.2%) and 109.8 million ha of WUI-Inf (13.0%). The maps produced here provide a baseline for future research and have a wide variety of practical applications.
Additional keywords: communities, fuels, values, wildland–industrial interface, wildland–infrastructure interface, wildland–urban interface.
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