Skip to Main Content
Effects of Nitrogen Enrichment, Wildfire, and Harvesting on Forest-Soil Carbon and NitrogenAuthor(s): Jennifer L. Parker; Ivan J. Fernandez; Lindsey E. Rustad; Stephen A. Norton
Source: Soil Science Society of America Journal
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
View PDF (88.0 KB)
DescriptionNorthern forest soils represent large reservoirs of C and N that may be altered by ecosystem perturbations. Soils at three paired watershed in Maine were investigated as case studies of experimentally elevated N deposition, wildfire, and whole-tree harvesting. Eight years of experimental (NH4)2SO4 additions at the Bear Brook Watershed in Maine significantly reduced forest-floor C/N ratios from 30.6 to 23.4. Forest-floor C and N pools were lower in the treated watershed (38 Mg C ha-1, 1612 kg N ha-1) compared with the reference (75 Mg C ha-1, 2372 kg N ha-1). Fifty years after wildfire at Acadia National Park, the burned watershed with hardwood regeneration had significantly lower forest-floor C and N concentrations (208 g C kg-1 soil, 9.9 g N kg-1 soil) than the reference watershed dominated by a softwoods (437 g C kg-1 soil, 12.8 g N kg-1 soil). Forest-floor C and N pools were lower in the burned watershed (27 Mg C ha-1, 1323 kg N ha-1) compared with the reference (71 Mg C ha-1, 2088 kg N ha-1). At the Weymouth Point, the harvested watershed regenerated to spruce-fir, the dominant stand type that existed before the harvest, and it had significantly lower forest-floor C concentrations and pools (406 g C kg-1 soil, 24 Mg C ha-1) than the reference (442 g C kg-1 soil, 39 Mg C ha-1) after 17 yr. All perturbations studied were associ- ated with lower forest-floor C pools.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationParker, Jennifer L.; Fernandez, Ivan J.; Rustad, Lindsey E.; Norton, Stephen A. 2001. Effects of Nitrogen Enrichment, Wildfire, and Harvesting on Forest-Soil Carbon and Nitrogen. Soil Science Society of America Journal. 65(4): 1248-1255. https://doi.org/10.2136/sssaj2001.6541248x.
- Post-fire comparisons of forest floor and soil carbon, nitrogen, and mercury pools with fire severity indices
- Impacts of Hemlock Loss on Nitrogen Retention Vary with Soil Nitrogen Availability in the Southern Appalachian Mountains
- Plantation management intensity affects belowground carbon and nitrogen storage in northern California
XML: View XML