Burn Baby, Burn!

Ecological Fire Management of natural areas is so cool.

Take a natural area - prairie, wetland or woodland - and every year or two light it on fire. The fire knocks back invasive plants like buckthorn and garlic mustard, giving the deep rooted natives a fighting chance!

The picture makes fire look a little scary, with flames roaring higher than a person, but the truth is that when doing this, TLC is very careful. It is said that a really good ecological burn is slow and boring, and we strive to make sure our burns are the slowest and most boring!

First we make sure there are fire breaks surrounding the area we want to burn - this can be done by raking or mowing vegetation to get rid of stuff that will burn easily. The fire breaks provide a safe place for the crew to move in, and help ensure that the fire will stop at the edges of the site.

Then, starting at the portion of the fire break that is located such that the wind is blowing into our faces, we light a backfire -- this means lighting a fire a foot or so away from the fire break, and letting the wind push the fire to the fire break, resulting in a burned line that effectively expands the fire break. Because we are working against the wind at this point, we don't have to worry about the fire taking off across the site.

Once a really good blackline is burned in, we light the head fire. This is where the wind is at our backs, and the fire roars quickly across the site, dying out when it runs out of fuel at the blackline! Here is a picture of a head fire - you can see the flames leaving a charred landscape in their wake!

All through the burn, we make sure that crew members are positioned at strategic locations to catch any fire that starts up where it isn't supposed to be! Crew members are armed with flappers to smother the fire, rakes to get rid of fuel (grass and leaves), and waterpacks to extinguish the fire if needed.

Historically, fire roared across the landscape regularly, either started by lightning or lit by native people who used it to drive game. The plants that thrived in this landscape are therefore well adapted to fire -- the bur oaks have a thick, corky bark that withstands fire, and the native grasses and flowers have exceptionally deep roots that mean the plants will grow back!

The 2009 Spring burn season is drawing to a close now -- birds are starting to build nests, and grasses are starting to green up. We'd rather not burn down someone's house, not even a sparrow's!