How can I duplicate effects of prescribed burning to restore native plants, without a fire?

Question

Fire would seem to rid underbrush (and perhaps small competing trees) and burn away leaves and organic matter. This helps native Michigan plants grow; seeds need to land on mineral soil to sprout. How often did fire sweep through such landscapes before people suppressed them? Can I duplicate effects by mowing and cutting, and removing leaves now and then? My backyard is a oak barrens remnant, mature black oak and native shade plants, on a quarter acre. I'm looking for an alternative to a prescribed burn, to which my neighbors would object (even if done by a professional.)

Answer 1

Mowing or cutting can be used as an alternative to prescribed burns when fire is absolutely not an option.  Mowing will not have the same effects as burning, as far as promoting native plants.  It will, however, discourage woody vegetation and weedy plants from establishing (thereby preserving the oak savanna).  If you can't burn, definitely mow it every two to six years (only mow 1/2 at a time).  Mow 1/2 in year 1 and the other 1/2 in year 2-3 and keep this rotation going.  This will maximize plant diversity while minimizing negative affects on wildlife because half of the savanna will be undisturbed.  An early spring (early to mid May) or late fall (late August) is best for your savanna and wildlife.  I would also recommend keeping an eye out for invasive species and control them when necessary.  Good luck!

Before humans began to supress fire the would blaze naturally every 1 to 30 years (or so!).  The best management practices suggest burning (or mowing) every 4-6 years.