Grassland fire interval key to maintaining prairie

Ecologists advise increase in prescribed grassland burning to maintain ecosystem and livelihood.

Kansas State University researchers have found that a three-year absence of fire is the tipping point for the tallgrass prairie ecosystem and are advising an increase in burning.

A collaborative study, results of which were published recently in Elsevier's journal Rangeland Ecology & Management, suggests that many land managers in the Flint Hills region of Kansas need to increase burning frequency to more than once every three years to keep the tallgrass prairie ecosys

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