1. Experimentally derived nitrogen critical loads for northern Great Plains vegetation. Issue 5 (29th May 2019) Authors: Symstad, Amy J.; Smith, Anine T.; Newton, Wesley E.; Knapp, Alan K. Journal: Ecological applications Issue: Volume 29:Issue 5(2019) Page Start: n/a Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗