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Jun Zhai, Zhuo Ning, Ram Dahal, Shaoyang Yang
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NRFSN number: 25515
FRAMES RCS number: 67991
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Understanding the role of land use type and topographic features in shaping wildfire regimes received much attention because of the intensification of wildfire activities. The intensifying wildfires in the western United States are a great concern both for the environment and society. We investigate the patterns of wildfire occurrence in the western United States at the landscape level by using 118 wildfires with areas greater than 405 ha in the study year of 2018. The selection ratios were calculated to measure fire preference with regard to land cover type, slope, and aspect. The results suggest that grasslands, steeper slopes, and south-facing aspects were more susceptible to wildfires in the western United States. Additionally, there were regional variations in wildfire susceptibility in Washington, Oregon, and California. The most wildfire-prone land cover type in Washington was mixed forests, whereas that in Oregon and California was grassland. The findings of this study improve the understanding of the role of land use changes and topographic features in shaping wildfire patterns in the western United States, providing insights for managing wildfire risks for forest management strategies at the landscape level.


Zhai, Jun; Ning, Zhuo; Dahal, Ram; Yang, Shaoyang. 2023. Wildfire susceptibility of land use and topographic features in the western United States: implications for the landscape management. Forests 14(4):807.

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