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Prairie fire |
Published:
Mar/Apr2004 |
![]() Above: A section of the Kansas prairie on fire. The practice helps keep the grazing lands rich and productive. Below The stately Z Bar/ Spring Hill Ranch at the Tallgrass Prairie National Preserve, which examines the ecology and economy of the tallgrass prairie region. Michael C. Snell photos
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B Y S A L L Y M . S N E L L |
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Many grasses comprise a tallgrass prairie: the towering big bluestem that can grow as tall as a human; prairie dropseed with its scent of buttered popcorn; feathery Indian grass and pale-blue Canada wild rye are only a few. According to the National Park Service, tallgrass prairie once covered more than 400,000 square miles of the North American continent. Only 1 percent remains intact, free of encroachment by forest, plow or development, and the majority is in the Flint Hills of Kansas. Burn, baby, burn Ironically, the survival of the prairie is dependent upon its destruction through regular controlled burns. Prairie fires stave off the encroachment of woody plants, and new grasses that grow after the burn encourage grazing species to move into the area. Prescribed burns have cleansed the prairie for centuries before western settlement. The Lewis and Clark expedition witnessed the indigenous peoples intentionally setting a fire as an inducement for the Buffalow to feed on when they wintered with the Mandan in early 1805. Ranchers today continue to practice regular burns in order to keep the grazing land rich and productive. Prairie burns are not a casual affair. Wed like to have at least 5 mph winds and less than 15, said Mike Holder, County Extension Agent in Chase County, Kan. You need a little wind to carry the fire across the prairie, and when the winds are between five and 15, the fire is manageable. The National Weather Service is consulted to ensure smoke blows away from major roads and highways. Ranchers inform law enforcement officials which pasture is going to be burned and who is in charge. If the winds change during the burn, troopers and deputies are called in to help keep the traffic moving through the smoke and keep them from driving in the smoke when it is not passable, said Holder. Once you get the fire started you cant put it out. It can take hours to put out a fire. Research at Kansas State University has shown the best time to burn is between April 1 and May 1. The idea is, we burn as close as possible to when the next years grass starts to grow so the soil is bare a minimum amount of time, said Holder. If you take that old growth off too early, you kind of screw up the coming seasons growing conditions. While that dead grass is out there on the prairie, any moisture we get holds it in place and lets it soak into the soil and stores it for next years growth, said Holder. Without the protective layer of dead grass, water would run off, cause soil erosion, and dirty the water supply. Burning too early sacrifices about 20 percent of grass production, said Holder. They go to great pains to burn correctly and safely. Ranchers use homemade spray rig fire trucks built to get around in the rough pasture conditions, a man strings the fire with what we call a fire stick, said Holder, and then people following on fire rigs put the fire out on the side you dont want to burn. A backfire is built around the pasture perimeter, allowing the fire to burn toward the center. Existing features such as streambeds or roads also help to limit the fires progress. Its not just a matter of going out and lighting a match, said Holder. Its kind of a planned attack. Celebration of fire We celebrate the phenomenon of the prairie fire through the fine arts, said Sue Smith, proprietor of the Emma Chase Café in Cottonwood Falls, Kan. The 4th Annual Prairie Fire Festival will be held April 9 and 10 in Cottonwood Falls, with special seminars held during evenings leading up to the festival. The seminars were originally held to benefit artists participating in the plein air (open air) event so they would understand what constitutes a tallgrass prairie. We felt if a person was going to paint the prairie, just like a person paints a nude, they probably ought to have some knowledge of anatomy, said Smith. Other sessions focused on wildflowers and Chase County memories which were some of our senior citizensand buddy we have some senior ones around hereand they were just remembering. We asked them questions like whats your favorite rattlesnake story, or whats your most vivid prairie fire memory, and just got these old guys to talking and it was a hoot and a half, said Smith. Chase County Remembers will be a part of the pre-festival activities again in 2004. |
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| Sally M. Snell is a contributor from Topeka, Kan. | |||||||||
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