MANAGEMENT The natural forces of fire and grazing helped shape and form mixed-grass prairie. The extensive root reserves of native plants allow them to regrow quickly after grazing or burning occurs. In order to maintain good quality native mixed-grass prairie, rotational grazing and occasional controlled burning must continue to be used. Excessive grazing can eliminate or suppress many species. However, the absence of grazing can increase woody growth and lead to a build up of plant litter, choking out some native species. Haying or mowing can also decrease woody species when burning or grazing are not possible.   How often a prairie should be burned depends on the purpose of the burn and local moisture conditions. Properly timed burns can help decrease woody growth and the presence of weedy species. Annual burns on mixed-grass prairie can be destructive over the long term, lowering moisture levels and destroying organic matter in the soil. Each prairie should be treated individually, according to the plant species present and the surrounding land use.

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