
Our town has an old theater in the downtown area. We've gone to see plays that are put on there by a community theatre. They'll also show old movies from time to time. The last one we saw was "Roman Holiday" starring Audrey Hepburn and Gregory Peck. The other day, though, we were invited to a screening of a film called "Louisiana Grass Roots" that a friend of a friend produced.
The movie was about Louisiana's Cajun Prairie. Growing up in Louisiana, when you travel to other places, they always have this idea that you wrestle alligators in the backyard. That's only partially true. Those Cajuns definitely exist. We are prairie Cajuns. We do have bayous and alligators and bullfrogs all around, but mostly the land is flat. Very flat.
The film describes a time in our area before commercial agriculture and intensive cattle grazing when the Cajun Prairie was wild. It had prairie grasses and wildflowers, some sending down roots 16 feet. This held the soil together. The land teemed with insects and pollinators. Over time, with land being plowed fencerow to fencerow and cattle grazing the land, the native prairie grasses disappeared. The topsoil also disappeared, eroding into bayous and rivers, silting them up.
A professor from LSU and a biologist from Louisiana Department of Wildlife and fisheries spoke about a time back in the 80's when some people were walking along a railroad right of way and found some prairie grasses and wildflowers - the plants that formerly populated vast acreage across Louisiana. The railroad right of ways were the only areas left that retained some of the old prairie grass landscape. They began gathering seeds and growing a seed bank. Over time, they've converted parcels of land back to the Cajun Prairie of time past. It's been slow going, but they are recruiting people to take portions of their non-productive land and re-populate it with prairie grass seeds to bring the prairie back.
Back to the erosion, according to the professor, 130 years ago our topsoil was many feet thick, but when the prairie grasses went, the topsoil was carried away too, leaving just the clay hardpan. I have no way of knowing if this is correct, but they told of a time when our bayous whose water look like chocolate milk once flowed clear with sand bottoms like the Ouiska Chitto River. I have no way of proving or disproving this.
This water, now laden with chemicals and fertilizer runoff from farming practices, flows into bayous and rivers and into the Gulf of America, creating an algae bloom and a Dead Zone, negatively impacting our fisheries and estuaries. Adding insult to injury. The thick topsoil that once thickly covered the clay hardpan acted as a sponge, retaining rainwater and fertility. With the topsoil sponge gone, the rainwater quickly runs off. Farmers who need water to grow rice and crawfish depend on deepwater wells that pull water from underground aquifers. These aquifers are being depleted and must be drilled deeper and deeper. Now some of those wells are producing salt water, resulting in acreage that can no longer be used for agriculture. They describe a crisis at hand.
I've never liked alarmist claims, striking fear into people. Remember back in the 70's we were told that we were going to be going into an ice age? Or how about the population explosion? Or Y2K? This professor told the group after the film that in 50 years, there would be little agriculture as we now know it because of no water. Like I mentioned, I don't like the alarmism, but this water issue seems to have some validity to it.
The purpose of the film was to educate people on the Cajun Prairie, how things used to be, and encourage people to take a portion of their land and revert back to the Cajun Prairie. It showed various groups of people planting seeds and taking steps now to help save the land and help future generations. Materials, seeds, contact information and links to websites were handed out. A breakout session was held at 221 Bistro down the street where many were going to discuss it further, but it was getting late and we headed home.
It was an interesting film and introduced us to some things that we'll talk about and study. We're already working on building the soil and have our own regimen of doing so. It's exciting to see others getting involved in a different method of building soil and stewarding the land that the Good Lord gave us.