This week, Stewardship Manager Ben VanderWeide, Stewardship Specialist Alex Kriebel and a team of trained volunteers created a controlled burn around the sports fields at Marshview Park. Our native plant species are adapted to fire after living for thousands of years with fire on the landscape. While lightning-sparked fires probably occurred occasionally, most fires in the last few thousand years were sparked by humans. The Native Americans in southern Michigan regularly used fire to clear and fertilize land for agriculture and to attract deer and other wildlife with tender, new growth, an early method of herding. As a result, our grasses and wildflowers have evolved to thrive after a burn. In fact, some grow only sparsely until a fire triggers them to emerge, bloom and seed. And luckily, many of the invasive species in our parks, which didn’t evolve with burning, are weakened by fire.
The burn process begins after the crew reviews safety procedures and checks the wind, making sure that weather conditions allow the smoke to rise as quickly as possible to minimize effects on neighbors. Then fire breaks are created or double-checked where necessary by mowing or raking around the edges of the burn area. This gets rid of fuel that would allow the fire to spread where not wanted. In the case of the sports fields, the green grass and paths provided ready-made fire breaks.
Some members of the fire crew, under Ben’s supervision, use drip torch canisters to spread fire, creating a low creeping flame.
Others carry water tanks on their backs to spray trees or bushes that need protection and to put out all smoldering embers when the burn is complete.
The result will be burgeoning growth of native plants, including wildflowers and grasses. After the first controlled burn in spring of 2016, Foxglove Beardtongue (Penstemon digitalis) made an appearance at Marshview Park. Yellow Coneflowers (Ratibida pinnata) burst forth in the summer along with the Compass Plant (Silphium laciniatum), whose huge leaves follow the sun during each summer day. (Photo below by Aaron Gunnar of inaturalist.org) And in autumn, New England Asters (Symphyotrichum novae-angliae) made a glorious, royal purple show around the edges of the sports fields while Little Bluestem (Schizachyrium scoparium), a native grass, filled the parking lot islands with its graceful russet stems. (Use the pause button if you can’t see the captions).
And with these native plants come insects that nourish birds and other native wildlife, while the increase in beautiful butterflies delights the human eye. So, yes, controlled burning paradoxically helps us restore the wild diversity of beauty that is Oakland Township’s natural heritage.