Ten Threats: Farmland to Wetlands

  • Installing vast networks of underground drains, known as tiles, is a common practice on farms throughout the country. Farmers can get their machines onto the fields sooner, and crops grow better when their roots aren't wet. This field, near Sherwood, OH, was once part of the Old Black Swamp. (Photo by Mark Brush)

One of the Ten Threats is the loss of wetlands. A lot of the wetlands of the Great Lakes were
turned into cropland – farmland. But before farmers could work the fields in the nation’s bread
basket, they first had to drain them. So thousands of miles of ditches and trenches were dug to
move water off the land. Losing millions of acres of wetlands meant losing nature’s water filter
for the lakes. Reporter Mark Brush reports… these days some farmers are restoring those wet
places:

Transcript

We’ve been bringing you stories about Ten Threats to the Great Lakes. On today’s report, the
Great Lakes Radio Consortium’s Lester Graham introduces us to a story about how farmers are
getting involved in restoring some of the natural landscape:


One of the Ten Threats is the loss of wetlands. A lot of the wetlands of the Great Lakes were
turned into cropland – farmland. But before farmers could work the fields in the nation’s bread
basket, they first had to drain them. So thousands of miles of ditches and trenches were dug to
move water off the land. Losing millions of acres of wetlands meant losing nature’s water filter
for the lakes. Reporter Mark Brush reports… these days some farmers are restoring those wet
places:


We’re standing in the middle of a newly-harvested corn field in northwest Ohio. This area used
to be wet. It was part of the old Black Swamp – one of the biggest wetland areas in the country.
The Swamp stretched 120 miles across northwest Ohio and into Indiana. It filtered a lot of water
that eventually made its way into Lake Erie. And it provided habitat for all kinds of wildlife.


Today, the Black Swamp is gone… It was drained and turned into farmland.


“Is it o.k. to go?”


“Yeah, go.”


(sound of trenching machine starting up)


Lynn Davis and his crew are cutting a trench into the earth. The trench is about a half a mile
long and five feet deep. Workers trail behind the machine feeding black, plastic pipe into the
trench.


The underground pipe will drain excess water to a nearby ditch.


Davis says these drains help the farmer grow more crops. It’s a common practice that’s been
going on for more than a hundred years. Farmers can get their machines onto the field sooner,
which makes for a longer growing season. And crops grow better when their roots aren’t wet.


Years ago, wetlands were considered a bad thing – places that stood in the way of farmland
development – and places where diseases spread.


The federal government actually paid people to drain them. And by the end of the 20th century
more than 170,000 square miles of wetlands were drained.


Lynn Davis’s family has been in this business for close to a hundred years. Davis admits that his
family helped drain the Black Swamp. But he says much of what’s been done can be reversed:


“You know, there is no question that this was of course one of the largest natural wetlands in the
country. And what we’re doing here was responsible for eliminating that wetland. Now what
we’ve done is relatively simple to reverse. If for some reason it was decided that we don’t want to
farm and live in this area any more, why we can put it back to a swamp real quick.”


And some of that is happening today.


Instead of paying people to drain wetlands, the federal government pays people to restore them.


(crickets)


We’ve driven about fifty miles north to where Bill Daub lives. He was hired by the U.S. Fish and
Wildlife service to find suitable land for restoration. And he’s restored well over 500 wetland
areas in the fifteen years he’s been doing it.


Daub says nature bounces back. He says every time he’s broken an old drainage pipe, dormant
seeds of wetland plants stored in the soil popped open:


“What’s amazing with the wetlands is that you see all these cattails, and wetland plants growing
in here – that stuff was in a seed bank, even though they were growing corn here, there was a seed
bank of wetlands species, waiting for water.”


The federal government will pay a farmer to take marginal cropland out of production under the
Wetlands Reserve Program. And Daub says it’s worth the money:


“Every one of these wetlands is a purification system. The water that finally leaves this wetland
has been purified through the living organisms in the wetland.”


(natural sound)


Janet Kaufman lives just down the road from Bill Daub, and eight years ago, she had a crew dig
up an old drainage pipe on her farm. These days, on the back end of her property there’s a pond
with a tall willow tree draping over the water:


“So this wasn’t here before?”


“Not at all, not at all! I mean it’s just shocking. And when the backhoe hit that it was like a
geyser, the water just poured out it just flew up in the air. They had to crunch it shut. I mean the
quantity of water that flows underground is unbelievable unless by chance you see it like that.”


Kaufman says a lot of her neighbors have been signing up to restore wetlands on their property.
The wetter areas aren’t that good for crops… and with the government offering money to let
nature take its course… it makes financial sense for the farmers.


But because a lot of the old Black Swamp area is good for farming, it’s not likely that we’ll see
huge swaths returned to wetlands.


But even the restoration of a fraction of the wetlands will help improve the health of the Great
Lakes.


For the GLRC, I’m Mark Brush.

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