A new study suggests the build-up of phosphorus in lakes may cause problems for hundreds of years. The Great Lakes Radio Consortium’s Chuck Quirmbach
A new study suggests the build-up of phosphorus in lakes may cause problems
for hundreds of years. The Great Lakes Radio Consortium’s Chuck Quirmbach
Many farmers and other landowners use phosphorus-rich fertilizers on their property, but when the chemical runs off into lakes and streams, it can lead to algae blooms, depletion of oxygen, and fish
New research says it can take decades or hundreds of years for phosphorus to cycle out of a watershed. University of Wisconsin – Madison Professor Stephen Carpenter did the study. He says the effects won’t be as long-lasting if more phosphorus controls are put in place.
“For example we could develop more buffer strips, restore more wetlands, move point sources away from streams and lakes and maybe even innovate new technologies for keeping phosphorus on the
Farm groups say many of their members are trying to reduce soil erosion and chemical runoff. Carpenter says that’s true, but he says in some watersheds, much stronger action is needed.
For the GLRC, I’m Chuck Quirmbach.