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The research will test whether hemp can grow with acid mine water irrigation and on culm land.

“It could also be a culm bank where they put all the refuse of the coal industry. It does look like there are trees growing on it.”

Both are the only mammals able to grind down culm.

Generally, silt contains more carbon than the banks of culm.

In harvesting her bamboo today, Ordonez selected older culms because they last longer than newer ones, she said.