Oecologia

, Volume 163, Issue 1, pp 13–24

Immobilizing nitrogen to control plant invasion

  • Laura G. Perry
  • Dana M. Blumenthal
  • Thomas A. Monaco
  • Mark W. Paschke
  • Edward F. Redente
Concepts, Reviews, and Syntheses

DOI: 10.1007/s00442-010-1580-x

Cite this article as:
Perry, L.G., Blumenthal, D.M., Monaco, T.A. et al. Oecologia (2010) 163: 13. doi:10.1007/s00442-010-1580-x

Abstract

Increased soil N availability may often facilitate plant invasions. Therefore, lowering N availability might reduce these invasions and favor desired species. Here, we review the potential efficacy of several commonly proposed management approaches for lowering N availability to control invasion, including soil C addition, burning, grazing, topsoil removal, and biomass removal, as well as a less frequently proposed management approach for lowering N availability, establishment of plant species adapted to low N availability. We conclude that many of these approaches may be promising for lowering N availability by stimulating N immobilization, even though most are generally ineffective for removing N from ecosystems (excepting topsoil removal). C addition and topsoil removal are the most reliable approaches for lowering N availability, and often favor desired species over invasive species, but are too expensive or destructive, respectively, for most management applications. Less intensive approaches, such as establishing low-N plant species, burning, grazing and biomass removal, are less expensive than C addition and may lower N availability if they favor plant species that are adapted to low N availability, produce high C:N tissue, and thus stimulate N immobilization. Regardless of the method used, lowering N availability sufficiently to reduce invasion will be difficult, particularly in sites with high atmospheric N deposition or agricultural runoff. Therefore, where feasible, the disturbances that result in high N availability should be limited in order to reduce invasions by nitrophilic weeds.

Keywords

Carbon additionEcological restorationFireGrazingPlant–soil feedbacks

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Laura G. Perry
    • 1
    • 5
  • Dana M. Blumenthal
    • 2
  • Thomas A. Monaco
    • 3
  • Mark W. Paschke
    • 4
  • Edward F. Redente
    • 4
  1. 1.Department of BiologyColorado State UniversityFort CollinsUSA
  2. 2.Rangeland Resources Research UnitUSDA-ARSFort CollinsUSA
  3. 3.Forage and Range Research LaboratoryUSDA-ARSLoganUSA
  4. 4.Department of Forest, Rangeland, and Watershed StewardshipColorado State UniversityFort CollinsUSA
  5. 5.Fort Collins Science CenterFort CollinsUSA