Research on Wildfire Hazard Reduction in Ponderosa Pine Ecosystems

Photos

Photos were taken by the National Park Service.

Photograph near Grandview on Grand Canyon's South Rim taken in 1909. Note the natural, grassy expanses,depth of view.

Photograph near Grandview, on Grand Canyon's South Rim, taken in 2002. Note dense thickets and weakened old tree, a condition attributed to unnatural competitive stress resulting from decades of fire suppression.

Photograph on Rainbow Plateau, south of Swamp Ridge on Grand Canyon's North Rim, taken by Pete Fule of NAU, in 1998. Note depth of view, height to bottom of crown, open grassy expanses interspersed with clumps of old trees.

Photograph taken at Swamp Ridge, on Grand Canyon's North Rim in 1998. Note the unnaturally dense thickets of white fir invading a once dominant old ponderosa pine forest.

Park Prescribed Fire hand crews "stringing fire" in a North Rim burn unit, in cautious incremental strips, to keep burn severity to prescribed levels.