Scaling plant nutrient use in peatlands.

A natural gradient of nutrient-limited peatland ecosystems at the University of Notre Dame Environmental Research Center in the Upper Peninsula of Michigan, USA were fertilized between 1998 and 2002 with nitrogen, phosphorus, or a combination of both nutrients. Our objectives were to determine how changes in carbon and nitrogen partitioning within a plant, and changes in community composition, would affect plant nitrogen-use efficiency.

​(This work was funded by a grant to Dr. Scott Bridgham at the University of Notre Dame.)

Publications.

Iversen CM, Bridgham SD, Kellogg LE. 2010. Scaling plant nitrogen-use and uptake efficiencies in response to nutrient addition in peatlands. Ecology 91: 693-707. ​​

Related Publications.

Keller JK, Bauers AK, Bridgham SD, Kellogg LE, Iversen CM. 2006. Nutrient control of microbial carbon cycling along an ombrotrophic-minerotrophic peatland gradient. Journal of Geophysical Research 111: G03006.

​Keller JK, Bridgham SD, Chapin CT, Iversen CM. 2005. Limited effects of six years of fertilization on carbon mineralization dynamics in a Minnesota fen. Soil Biology and Biochemistry 37: 1197-1204. 

Data Sets.