Second-Entry Burns Reduce Mid-Canopy Fuels and Create Resilient Forest Structure in Yosemite National Park, California

Repeated burning in Yosemite National Park significantly reduces mid-canopy fuel loads and enhances forest resilience, biodiversity, and ecosystem health without further improvement after a second fire. Researchers analyzed long-term fire histories, LiDAR data, and topo-climatic datasets to assess how fire interactions with climate shape forest structure across elevation-driven gradients. They found that while tree density and mid-canopy strata cover decreased after two fires, subsequent burns did not alter these patterns further. This study provides critical insights for refining fire management prescriptions, balancing wildfire risk mitigation, and promoting ecosystem resilience in protected areas like Yosemite.

Hankin, L. E., & Anderson, C. T. (2022). Second-Entry Burns Reduce Mid-Canopy Fuels and Create Resilient Forest Structure in Yosemite National Park, California. Forests, 13(9), 1512. https://doi.org/10.3390/f13091512