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News Release Date: April 8, 2019
Contact:
Seth Hendriks, 507-825-5464 x 222
Historically, the 18 million acres of native tall grass prairie that once covered the central plains, including Minnesota, experienced repeated lightning-caused fires. The continual burning of the prairie reduced the buildup of accumulated organic plant material and suppressed the growth of woody tree and shrub species. This in turn ensured native prairie growth by recycling essential nutrients such as nitrogen, phosphate, potassium, and trace minerals, and decreasing plant competition from invading exotic species.
Less than one percent of the original tall grass prairie in Minnesota remains. This loss has greatly changed the probability of lightning-ignited fires. Controlled burns are conducted to mimic the benefits that fire produces for a healthy prairie. The Monument has been conducting controlled burns of the tall grass prairie since 1971. Because of management efforts such as the use of prescribed fire, the hand removal of exotic vegetation, and the broadcast of native prairie seed, long-term monitoring data indicates a decrease in non-native exotic vegetation, along with an increase in native tall grass prairie at the Monument.
If you would like further information on the prescribed fire program at the monument, please call Natural Resources Manager Seth Hendriks at 507-825-5464 x 222.
Last updated: April 13, 2019