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Environmental Management

, Volume 16, Issue 4, pp 505–511 | Cite as

Effects of increased elevation and macro- and micronutrient additions onSpartina alterniflora transplant success in salt-marsh dieback areas in Louisiana

  • Brian J. Wilsey
  • Karen L. Mckee
  • Irving A. Mendelssohn
Research

Abstract

Spartina alterniflora was transplanted into dieback areas of a salt marsh in southeast Louisiana at two elevations (ambient and +30 cm) with and without macro- (N, P, and K) and micronutrient (Fe, Mn, Cu, and Zn) additions to determine if transplant success is dependent on increasing elevation or nutrients.Spartina alterniflora transplanted into elevated plots had more than twice the above- and belowground biomass as compared to nonelevated plots after three months of growth. Additionally, there was significantly more vegetative reproduction (greater culm density and number of newly produced culms) in elevated plots as compared to plots at ambient elevation. Macronutrient additions increased culm densities only in elevated plots.Spartina alterniflora transplanted into nonelevated plots had lower survival rates even when transplants received nutrient additions. These results suggest thatS. alterniflora may be transplanted successfully into degraded salt-marsh areas if elevation is increased. The addition of nutrients without a concomitant increase in elevation is not sufficient for transplant success.

Key words

Wetland ecology Marsh restoration Fertilization Salt marshes Spartina alterniflora Louisiana 

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Copyright information

© Springer-Verlag New York Inc. 1992

Authors and Affiliations

  • Brian J. Wilsey
    • 1
  • Karen L. Mckee
    • 1
  • Irving A. Mendelssohn
    • 1
  1. 1.Wetland Biogeochemistry Institute Center for Wetland ResourcesLouisiana State UniversityBaton Rouge

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