Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Photograph of a very highly fertilized plot at GSM taken autumn 2007. The fertilized plot is clearly visible in the center of the photograph and is surrounded by unfertilized marsh that has begun fall senescence. Note the difference in macrophyte community composition, above ground biomass and elevation between the fertilized and unfertilized portions of the marsh. Photo by I Valiela.
