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Long-Term Effects of Fuel Reduction Treatments on Surface Fuel Loading in the Blue Mountains of Oregon

Morici, Kat E. ; Bailey, John D.

Forests, 2021-10, Vol.12 (10), p.1306 [Periódico revisado por pares]

Basel: MDPI AG

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  • Título:
    Long-Term Effects of Fuel Reduction Treatments on Surface Fuel Loading in the Blue Mountains of Oregon
  • Autor: Morici, Kat E. ; Bailey, John D.
  • Assuntos: Coniferous forests ; Douglas-fir ; fire hazard ; Fire hazards ; Forest & brush fires ; Forest ecosystems ; Forest fires ; forest management ; fuel treatment ; Fuels ; Long-term effects ; Maintenance ; Mountains ; ponderosa pine ; Prescribed fire ; Pretreatment ; Reduction ; Trees ; Vegetation ; Wildfires ; woody fuel
  • É parte de: Forests, 2021-10, Vol.12 (10), p.1306
  • Descrição: Fire exclusion and a lengthening fire season has resulted in an era of megafires. Fuel reduction treatments in forested ecosystems are designed to guard against future extreme wildfire behavior. Treatments create a heterogenous landscape and facilitate ecosystem function and resilience in fire-adapted forests of the western United States. Despite widespread recognition that repeated fuel treatments are needed to maintain desired stand characteristics over time, few field studies have evaluated treatment longevity. The Blue Mountains Fire and Fire Surrogate site in northeastern Oregon presented an opportunity to investigate woody fuel loading 15–17 years after four treatments: mechanical thin, prescribed burn, both thin and burn, and no treatment control. The principal findings were: (1) fine fuel load 15 years post-burn remained slightly below pre-treatment values; (2) rotten coarse fuel load was reduced post-burn, but sound coarse fuel was not altered by any active treatment; and (3) total woody fuel load 15–17 years post-treatment was similar to pre-treatment values. Understanding surface fuel loading is essential for predicting fire behavior. Overall, the effects of fuel reduction treatments on woody surface fuels were transitory in dry mixed conifer forests. Frequent maintenance treatments are recommended to protect values at risk in areas with high fire hazards. Quantifying the persistence of changes in forest conditions aids in the planning and analysis of future fuel treatments, along with scheduling maintenance of existing treated areas.
  • Editor: Basel: MDPI AG
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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