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Fuels and Fuel Treatments
Year of Publication
2023
Publication Type
Assessing the effectiveness and measuring the performance of fuel treatments and other wildfire risk mitigation efforts are challenging endeavors. Perhaps the most complicated is quantifying avoided impacts. In this study, we show how probabilistic counterfactual analysis can help with performance evaluation.
Consistently heterogeneous structures observed at multiple spatial scales across fire-intact reference sites
Year of Publication
2023
Publication Type
Yellow pine and mixed-conifer (YPMC) forests of California’s Sierra Nevada have experienced widespread fire suppression for over a century, resulting in ingrowth and densification of trees, heavy fuel accumulation, and shifts in species composition.
Evidence for multi-decadal fuel buildup in a large California wildfire from smoke radiocarbon measurements
Year of Publication
2023
Publication Type
In recent decades, there has been a significant increase in annual area burned in California's Sierra Nevada mountains. This rise in fire activity has prompted the need to understand how historical forest management practices affect fuel composition and emissions.
Quantifying the flammability of living plants at the branch scale: which metrics to use?
Year of Publication
2023
Publication Type
Background
Plant flammability is an important factor in fire behaviour and post-fire ecological responses.
Metrics and Considerations for Evaluating How Forest Treatments Alter Wildfire Behavior and Effects
Year of Publication
2023
Publication Type
The influence of forest treatments on wildfire effects is challenging to interpret. This is, in part, because the impact forest treatments have on wildfire can be slight and variable across many factors. Effectiveness of a treatment also depends on the metric considered.
Dry Live Fuels Increase the Likelihood of Lightning-Caused Fires
Year of Publication
2023
Publication Type
Live fuel moisture content (LFMC) is a key determinant of landscape ignition potential, but quantitative estimates of its effects on wildfire are lacking. We present a causal inference framework to isolate the effect of LFMC from other drivers like fuel type, fuel amount, and meteorology.
Heading and backing fire behaviours mediate the influence of fuels on wildfire energy
Year of Publication
2023
Publication Type
Background: Pre-fire fuels, topography, and weather influence wildfire behaviour and fire-driven ecosystem carbon loss. However, the pre-fire characteristics that contribute to fire behaviour and effects are often understudied for wildfires because measurements are difficult to obtain.
Vertical and Horizontal Crown Fuel Continuity Influences Group-Scale Ignition and Fuel Consumption
Year of Publication
2023
Publication Type
A deeper understanding of the influence of fine-scale fuel patterns on fire behavior is essential to the design of forest treatments that aim to reduce fire hazard, enhance structural complexity, and increase ecosystem function and resilience. Of particular relevance is the impact of horizontal and vertical forest structure on potential tree torching and large-tree mortality.
Proportion of forest area burned at high-severity increases with increasing forest cover and connectivity in western US watersheds
Year of Publication
2023
Publication Type
Context In western US forests, the increasing frequency of large high-severity fires presents challenges for society. Quantifying how fuel conditions influence high-severity area is important for managing risks of large high-severity fires and understanding how they are changing with climate change.
DUET - Distribution of Understory using Elliptical Transport: A mechanistic model of leaf litter and herbaceous spatial distribution based on tree canopy structure
Year of Publication
2023
Publication Type
Heterogeneity in surface fuels produced by overstory trees and understory vegetation is a major driver of fire behavior and ecosystem dynamics.
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