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News Release 18-007

Study shows wetlands provide landscape-scale reduction in nitrogen pollution

"Wetland complexes" in a watershed are very effective in reducing nitrate

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Wetlands

Wetlands are important for reducing excess nitrate flowing downstream.

Credit: Amy Hansen


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Agricultural ditch

Agricultural ditch with a field of corn on one side and soybeans on the other.

Credit: Katie Kemmit


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Scientists measure water velocity and collect samples in an agricultural ditch.

Scientists measure water velocity and collect samples in an agricultural ditch.

Credit: Amy Hansen


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Researchers collect water samples

Researchers collect water samples for chemical analyses of nitrate concentration.

Credit: Amy Hansen


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Ecologists collect water samples

Ecologists collect water samples from an agricultural ditch as a field is readied for planting.

Credit: Katie Kemmit


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Swans in a flooded farmed depression

Swans rest in a flooded, farmed depression.

Credit: Amy Hansen


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