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Course Outline

Distribution refers to how fuels are spread around the area both horizontally and vertically. This influences how fire spreads through the fuels. Fuels that are dense and evenly spread over an area will burn more rapidly, steadily and predictably. Sparse fuels will burn slower and more sporadic. An uneven or patchy distribution will burn less predictably, possibly making short intense runs through dense patches, and exhibiting little or no movement in areas where the fuel load is lighter. When locating and building fire breaks, make sure to pay attention to fuel types and distribution. Fuel characteristics will cause fire behavior to vary.

Two photos showing the distribution of uniform and patchy fuels.

Courtesy of NWCG, S190

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