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International Journal of Wildland Fire
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 Just Accepted

This article has been peer reviewed and accepted for publication. It is in production and has not been edited, so may differ from the final published form.


A synthesis of post-fire Burned Area Reports from 1972 to 2009 for western US Forest Service lands: trends in wildfire characteristics and post-fire stabilization treatments and expenditures

Peter Robichaud, Hakjun Rhee, Sarah Lewis

Abstract

Over 1,200 post-fire assessment and treatment implementation reports from four decades (1970–2009) of western US forest fires have been examined to identify decadal patterns in fire characteristics and the justifications and expenditures for the post-fire treatments. The main trends found were: 1) the area burned by wildfire increased over time and the rate of increase accelerated after 1990; 2) the proportions of burned area assessed as low, moderate, and high burn severity likely have remained fairly constant over time, but the use of satellite imagery that began around 2000 increased the resolution of burn severity assessments leading to a decreased proportion of high burn severity during the 2000s; 3) treatment justifications reflected regional concerns (e.g. soil productivity in areas of timber harvest) and generally reflected increased human encroachment in the wildland-urban interface; 4) modifications to roads were the most frequently recommended post-fire treatment type; 5) seeding was the most frequently-used land treatment, but declined in use over time; 6) use of post-fire agricultural straw mulching has steadily increased because of proven success; and 7) the greatest post-fire expenditures have been for land treatments applied over large areas to protect important resources (e.g. municipal water sources).

WF13192  Accepted 19 May 2014
 
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