Ecology, Climate Change and Related News

Conservation Science for a Healthy Planet

Strips of prairie plants slow loss of soil, nutrients and water from ag fields, double biodiversit

Leave a Comment

October 2, 2017 USDA Forest Service – Northern Research Station read full ScienceDaily article here

Prairie strips integrated in row crops reduce soil and nutrient loss from steep ground, provide habitat for wildlife, and improve water infiltration, a decade of research is demonstrating….

….Research suggests that prairie strips reduce soil and nutrient loss from steep ground, provide habitat for wildlife and improve water infiltration. According to the study published by PNAS, converting as little as 10 percent of the cropped area to prairie strips reduced soil loss by 95 percent, phosphorus losses in surface runoff by 77 percent, nitrate concentrations in groundwater by 72 percent and total nitrogen losses in surface runoff by 70 percent, compared with all-crop watersheds. Pollinator and bird abundance more than doubled….

…”The strips are designed to act as a speed bump to slow water down and give it time to infiltrate the soil,” said Lisa Schulte Moore, the study’s lead author and a professor at Iowa State University. Researchers estimate that prairie strips could be used to improve biodiversity and ecosystem services across 3.9 million hectares of cropland in Iowa and a large portion of the 69 million hectares planted in rowcrops in the United States, much of it in the Midwest.

Lisa A. Schulte, Jarad Niemi, Matthew J. Helmers, Matt Liebman, J. Gordon Arbuckle, David E. James, Randall K. Kolka, Matthew E. O’Neal, Mark D. Tomer, John C. Tyndall, Heidi Asbjornsen, Pauline Drobney, Jeri Neal, Gary Van Ryswyk, Chris Witte. Prairie strips improve biodiversity and the delivery of multiple ecosystem services from corn–soybean croplands. Proceedings of the National Academy of Sciences, 2017; 201620229 DOI: 10.1073/pnas.1620229114

View all articles

Comments are closed