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Forest fire burned areas require soil stabilization to minimize loss of topsoil and stream sedimentation. Aerial seeding is commonly used in burned areas to provide a seed source for the first growing season following the fire. The image shows an aerially seeded area one year after the Fridley Fire.
Soil Stabilization
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Sediment and storm water can be captured on-slope in depressions cut into the soil using dozers. These dozer basins, constructed in Butte, Montana, were placed in offset rows to limit erosion. The basins depicted were built with the front blade of a dozer operating up and down the slope. Dozer basins can also be installed on the contour using a specialty blade attached to the rear of the dozer.
Sediment Control
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Roadways constructed through ‘badland’ areas frequently encounter clay-rich parent materials that are difficult to revegetate. Accentuated erosion and increased highway maintenance is commonly the result. The slope depicted has developed a strongly rilled soil surface over four years since construction.
Erosion Problems
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Wattles placed on the contour can capture sediment, slow sheet flow and prevent gully formation. This wattle was filled with chipped wood and anchored to the slope with wooden stakes.
Sediment Control
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Silt fence is difficult to use successfully in concentrated flow areas. The gullies shown in this picture undermined the toe of the silt fence allowing storm water and sediment to pass underneath the fabric.
Erosion Problems
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